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server.xxx endpoints
2022-10-11 22:30:54 +00:00 · 2022-10-11 14:29:51 +00:00 · 2022-10-11 10:54:46 +00:00
33 changed files with 568 additions and 1681 deletions
--- a/.github/workflows/build-short.yml
+++ b/.github/workflows/build-short.yml
@ -7,6 +7,6 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
      - name: Build and Test
        uses: ./
--- a/db/db.go
+++ b/db/db.go
@ -8,6 +8,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"os"
+	"sync"
 	"time"

 	"github.com/lbryio/herald.go/db/prefixes"
@ -15,7 +16,6 @@ import (
 	"github.com/lbryio/herald.go/internal"
 	"github.com/lbryio/herald.go/internal/metrics"
 	pb "github.com/lbryio/herald.go/protobuf/go"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	"github.com/linxGnu/grocksdb"

 	log "github.com/sirupsen/logrus"
@ -59,7 +59,11 @@ type ReadOnlyDBColumnFamily struct {
 	BlockedChannels        map[string][]byte
 	FilteredStreams        map[string][]byte
 	FilteredChannels       map[string][]byte
-	Grp                    *stop.Group
+	OpenIterators          map[string][]chan struct{}
+	ItMut                  sync.RWMutex
+	ShutdownChan           chan struct{}
+	DoneChan               chan struct{}
+	ShutdownCalled         bool
 	Cleanup                func()
 }

@ -335,10 +339,19 @@ func interruptRequested(interrupted <-chan struct{}) bool {
 func IterCF(db *grocksdb.DB, opts *IterOptions) <-chan *prefixes.PrefixRowKV {
 	ch := make(chan *prefixes.PrefixRowKV)

-	// Check if we've been told to shutdown in between getting created and getting here
-	if opts.Grp != nil && interruptRequested(opts.Grp.Ch()) {
-		opts.Grp.Done()
-		return ch
+	iterKey := fmt.Sprintf("%p", opts)
+	if opts.DB != nil {
+		opts.DB.ItMut.Lock()
+		// There is a tiny chance that we were wating on the above lock while shutdown was
+		// being called and by the time we get it the db has already notified all active
+		// iterators to shutdown. In this case we go to the else branch.
+		if !opts.DB.ShutdownCalled {
+			opts.DB.OpenIterators[iterKey] = []chan struct{}{opts.DoneChan, opts.ShutdownChan}
+			opts.DB.ItMut.Unlock()
+		} else {
+			opts.DB.ItMut.Unlock()
+			return ch
+		}
 	}

 	ro := grocksdb.NewDefaultReadOptions()
@ -356,9 +369,11 @@ func IterCF(db *grocksdb.DB, opts *IterOptions) <-chan *prefixes.PrefixRowKV {
 			it.Close()
 			close(ch)
 			ro.Destroy()
-			if opts.Grp != nil {
-				// opts.Grp.DoneNamed(iterKey)
-				opts.Grp.Done()
+			if opts.DB != nil {
+				opts.DoneChan <- struct{}{}
+				opts.DB.ItMut.Lock()
+				delete(opts.DB.OpenIterators, iterKey)
+				opts.DB.ItMut.Unlock()
 			}
 		}()

@ -379,7 +394,7 @@ func IterCF(db *grocksdb.DB, opts *IterOptions) <-chan *prefixes.PrefixRowKV {
 			if kv = opts.ReadRow(&prevKey); kv != nil {
 				ch <- kv
 			}
-			if opts.Grp != nil && interruptRequested(opts.Grp.Ch()) {
+			if interruptRequested(opts.ShutdownChan) {
 				return
 			}
 		}
@ -441,8 +456,8 @@ func (db *ReadOnlyDBColumnFamily) selectFrom(prefix []byte, startKey, stopKey pr
 	// Prefix and handle
 	options := NewIterateOptions().WithDB(db).WithPrefix(prefix).WithCfHandle(handle)
 	// Start and stop bounds
-	options = options.WithStart(startKey.PackKey()).WithStop(stopKey.PackKey()).WithIncludeStop(false)
-	// Include the key and value
+	options = options.WithStart(startKey.PackKey()).WithStop(stopKey.PackKey()).WithIncludeStop(true)
+	// Don't include the key
 	options = options.WithIncludeKey(true).WithIncludeValue(true)
 	return []*IterOptions{options}, nil
 }
@ -455,7 +470,7 @@ func iterate(db *grocksdb.DB, opts []*IterOptions) <-chan []*prefixes.PrefixRowK
 			for kv := range IterCF(db, o) {
 				row := make([]*prefixes.PrefixRowKV, 0, 1)
 				row = append(row, kv)
-				log.Debugf("iterate[%v][%v] %#v -> %#v", i, j, kv.Key, kv.Value)
+				log.Debugf("iterate[%v][%v] %#v", i, j, kv)
 				out <- row
 				j++
 			}
@ -481,7 +496,7 @@ func innerJoin(db *grocksdb.DB, in <-chan []*prefixes.PrefixRowKV, selectFn func
 				row = append(row, kvs...)
 				row = append(row, kv...)
 				for i, kv := range row {
-					log.Debugf("row[%v] %#v -> %#v", i, kv.Key, kv.Value)
+					log.Debugf("row[%v] %#v", i, kv)
 				}
 				out <- row
 			}
@ -531,7 +546,7 @@ func GetWriteDBCF(name string) (*grocksdb.DB, []*grocksdb.ColumnFamilyHandle, er
 }

 // GetProdDB returns a db that is used for production.
-func GetProdDB(name string, secondaryPath string, grp *stop.Group) (*ReadOnlyDBColumnFamily, error) {
+func GetProdDB(name string, secondaryPath string) (*ReadOnlyDBColumnFamily, func(), error) {
 	prefixNames := prefixes.GetPrefixes()
 	// additional prefixes that aren't in the code explicitly
 	cfNames := []string{"default", "e", "d", "c"}
@ -540,7 +555,7 @@ func GetProdDB(name string, secondaryPath string, grp *stop.Group) (*ReadOnlyDBC
 		cfNames = append(cfNames, cfName)
 	}

-	db, err := GetDBColumnFamilies(name, secondaryPath, cfNames, grp)
+	db, err := GetDBColumnFamilies(name, secondaryPath, cfNames)

 	cleanupFiles := func() {
 		err = os.RemoveAll(secondaryPath)
@ -550,8 +565,7 @@ func GetProdDB(name string, secondaryPath string, grp *stop.Group) (*ReadOnlyDBC
 	}

 	if err != nil {
-		cleanupFiles()
-		return nil, err
+		return nil, cleanupFiles, err
 	}

 	cleanupDB := func() {
@ -560,11 +574,11 @@ func GetProdDB(name string, secondaryPath string, grp *stop.Group) (*ReadOnlyDBC
 	}
 	db.Cleanup = cleanupDB

-	return db, nil
+	return db, cleanupDB, nil
 }

 // GetDBColumnFamilies gets a db with the specified column families and secondary path.
-func GetDBColumnFamilies(name string, secondayPath string, cfNames []string, grp *stop.Group) (*ReadOnlyDBColumnFamily, error) {
+func GetDBColumnFamilies(name string, secondayPath string, cfNames []string) (*ReadOnlyDBColumnFamily, error) {
 	opts := grocksdb.NewDefaultOptions()
 	roOpts := grocksdb.NewDefaultReadOptions()
 	cfOpt := grocksdb.NewDefaultOptions()
@ -579,7 +593,6 @@ func GetDBColumnFamilies(name string, secondayPath string, cfNames []string, grp
 	// db, handles, err := grocksdb.OpenDbColumnFamilies(opts, name, cfNames, cfOpts)

 	if err != nil {
-		log.Errorf("open db as secondary failed: %v", err)
 		return nil, err
 	}

@ -601,7 +614,11 @@ func GetDBColumnFamilies(name string, secondayPath string, cfNames []string, grp
 		LastState:        nil,
 		Height:           0,
 		Headers:          nil,
-		Grp:              grp,
+		OpenIterators:    make(map[string][]chan struct{}),
+		ItMut:            sync.RWMutex{},
+		ShutdownChan:     make(chan struct{}, 1),
+		ShutdownCalled:   false,
+		DoneChan:         make(chan struct{}, 1),
 	}

 	err = myDB.ReadDBState() //TODO: Figure out right place for this
@ -670,6 +687,24 @@ func (db *ReadOnlyDBColumnFamily) Unwind() {

 // Shutdown shuts down the db.
 func (db *ReadOnlyDBColumnFamily) Shutdown() {
+	log.Println("Sending message to ShutdownChan...")
+	db.ShutdownChan <- struct{}{}
+	log.Println("Locking iterator mutex...")
+	db.ItMut.Lock()
+	log.Println("Setting ShutdownCalled to true...")
+	db.ShutdownCalled = true
+	log.Println("Notifying iterators to shutdown...")
+	for _, it := range db.OpenIterators {
+		it[1] <- struct{}{}
+	}
+	log.Println("Waiting for iterators to shutdown...")
+	for _, it := range db.OpenIterators {
+		<-it[0]
+	}
+	log.Println("Unlocking iterator mutex...")
+	db.ItMut.Unlock()
+	log.Println("Sending message to DoneChan...")
+	<-db.DoneChan
 	log.Println("Calling cleanup...")
 	db.Cleanup()
 	log.Println("Leaving Shutdown...")
@ -679,13 +714,12 @@ func (db *ReadOnlyDBColumnFamily) Shutdown() {
 // to keep the db readonly view up to date and handle reorgs on the
 // blockchain.
 func (db *ReadOnlyDBColumnFamily) RunDetectChanges(notifCh chan<- interface{}) {
-	db.Grp.Add(1)
 	go func() {
 		lastPrint := time.Now()
 		for {
 			// FIXME: Figure out best sleep interval
 			if time.Since(lastPrint) > time.Second {
-				log.Debugf("DetectChanges: %#v", db.LastState)
+				log.Debug("DetectChanges:", db.LastState)
 				lastPrint = time.Now()
 			}
 			err := db.detectChanges(notifCh)
@ -693,8 +727,8 @@ func (db *ReadOnlyDBColumnFamily) RunDetectChanges(notifCh chan<- interface{}) {
 				log.Infof("Error detecting changes: %#v", err)
 			}
 			select {
-			case <-db.Grp.Ch():
-				db.Grp.Done()
+			case <-db.ShutdownChan:
+				db.DoneChan <- struct{}{}
 				return
 			case <-time.After(time.Millisecond * 10):
 			}
@ -775,12 +809,7 @@ func (db *ReadOnlyDBColumnFamily) detectChanges(notifCh chan<- interface{}) erro
 				log.Info("error getting block hash: ", err)
 				return err
 			}
-			header, err := db.GetHeader(height)
-			if err != nil {
-				log.Info("error getting block header: ", err)
-				return err
-			}
-			notifCh <- &internal.HeightHash{Height: uint64(height), BlockHash: hash, BlockHeader: header}
+			notifCh <- &internal.HeightHash{Height: uint64(height), BlockHash: hash}
 		}
 		//TODO: ClearCache
 		log.Warn("implement cache clearing")
--- a/db/db_get.go
+++ b/db/db_get.go
@ -3,19 +3,16 @@ package db
 // db_get.go contains the basic access functions to the database.

 import (
-	"bytes"
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+	"log"
 	"math"

 	"github.com/lbryio/herald.go/db/prefixes"
 	"github.com/lbryio/herald.go/db/stack"
 	"github.com/lbryio/lbcd/chaincfg/chainhash"
-	"github.com/lbryio/lbcd/wire"
 	"github.com/linxGnu/grocksdb"
-
-	log "github.com/sirupsen/logrus"
 )

 // GetExpirationHeight returns the expiration height for the given height. Uses
@ -68,57 +65,6 @@ func (db *ReadOnlyDBColumnFamily) GetBlockHash(height uint32) ([]byte, error) {
 	return rawValue, nil
 }

-func (db *ReadOnlyDBColumnFamily) GetBlockTXs(height uint32) ([]*chainhash.Hash, error) {
-	handle, err := db.EnsureHandle(prefixes.BlockTXs)
-	if err != nil {
-		return nil, err
-	}
-
-	key := prefixes.BlockTxsKey{
-		Prefix: []byte{prefixes.BlockTXs},
-		Height: height,
-	}
-	slice, err := db.DB.GetCF(db.Opts, handle, key.PackKey())
-	defer slice.Free()
-	if err != nil {
-		return nil, err
-	}
-	if slice.Size() == 0 {
-		return nil, nil
-	}
-
-	rawValue := make([]byte, len(slice.Data()))
-	copy(rawValue, slice.Data())
-	value := prefixes.BlockTxsValueUnpack(rawValue)
-	return value.TxHashes, nil
-}
-
-func (db *ReadOnlyDBColumnFamily) GetTouchedHashXs(height uint32) ([][]byte, error) {
-	handle, err := db.EnsureHandle(prefixes.TouchedHashX)
-	if err != nil {
-		return nil, err
-	}
-
-	key := prefixes.TouchedHashXKey{
-		Prefix: []byte{prefixes.TouchedHashX},
-		Height: height,
-	}
-	slice, err := db.DB.GetCF(db.Opts, handle, key.PackKey())
-	defer slice.Free()
-	if err != nil {
-		return nil, err
-	}
-	if slice.Size() == 0 {
-		return nil, nil
-	}
-
-	rawValue := make([]byte, len(slice.Data()))
-	copy(rawValue, slice.Data())
-	value := prefixes.TouchedHashXValue{}
-	value.UnpackValue(rawValue)
-	return value.TouchedHashXs, nil
-}
-
 func (db *ReadOnlyDBColumnFamily) GetHeader(height uint32) ([]byte, error) {
 	handle, err := db.EnsureHandle(prefixes.Header)
 	if err != nil {
@ -325,7 +271,6 @@ func (db *ReadOnlyDBColumnFamily) GetStatus(hashX []byte) ([]byte, error) {
 	// Lookup in HashXMempoolStatus first.
 	status, err := db.getMempoolStatus(hashX)
 	if err == nil && status != nil {
-		log.Debugf("(mempool) status(%#v) -> %#v", hashX, status)
 		return status, err
 	}

@ -346,7 +291,6 @@ func (db *ReadOnlyDBColumnFamily) GetStatus(hashX []byte) ([]byte, error) {
 		copy(rawValue, slice.Data())
 		value := prefixes.HashXStatusValue{}
 		value.UnpackValue(rawValue)
-		log.Debugf("status(%#v) -> %#v", hashX, value.Status)
 		return value.Status, nil
 	}

@ -355,11 +299,6 @@ func (db *ReadOnlyDBColumnFamily) GetStatus(hashX []byte) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-
-	if len(txs) == 0 {
-		return []byte{}, err
-	}
-
 	hash := sha256.New()
 	for _, tx := range txs {
 		hash.Write([]byte(fmt.Sprintf("%s:%d:", tx.TxHash.String(), tx.Height)))
@ -792,70 +731,6 @@ func (db *ReadOnlyDBColumnFamily) FsGetClaimByHash(claimHash []byte) (*ResolveRe
 	)
 }

-func (db *ReadOnlyDBColumnFamily) GetTx(txhash *chainhash.Hash) ([]byte, *wire.MsgTx, error) {
-	// Lookup in MempoolTx first.
-	raw, tx, err := db.getMempoolTx(txhash)
-	if err == nil && raw != nil && tx != nil {
-		return raw, tx, err
-	}
-
-	handle, err := db.EnsureHandle(prefixes.Tx)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	key := prefixes.TxKey{Prefix: []byte{prefixes.Tx}, TxHash: txhash}
-	rawKey := key.PackKey()
-	slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
-	defer slice.Free()
-	if err != nil {
-		return nil, nil, err
-	}
-	if slice.Size() == 0 {
-		return nil, nil, nil
-	}
-
-	rawValue := make([]byte, len(slice.Data()))
-	copy(rawValue, slice.Data())
-	value := prefixes.TxValue{}
-	value.UnpackValue(rawValue)
-	var msgTx wire.MsgTx
-	err = msgTx.Deserialize(bytes.NewReader(value.RawTx))
-	if err != nil {
-		return nil, nil, err
-	}
-	return value.RawTx, &msgTx, nil
-}
-
-func (db *ReadOnlyDBColumnFamily) getMempoolTx(txhash *chainhash.Hash) ([]byte, *wire.MsgTx, error) {
-	handle, err := db.EnsureHandle(prefixes.MempoolTx)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	key := prefixes.MempoolTxKey{Prefix: []byte{prefixes.Tx}, TxHash: txhash}
-	rawKey := key.PackKey()
-	slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
-	defer slice.Free()
-	if err != nil {
-		return nil, nil, err
-	}
-	if slice.Size() == 0 {
-		return nil, nil, nil
-	}
-
-	rawValue := make([]byte, len(slice.Data()))
-	copy(rawValue, slice.Data())
-	value := prefixes.MempoolTxValue{}
-	value.UnpackValue(rawValue)
-	var msgTx wire.MsgTx
-	err = msgTx.Deserialize(bytes.NewReader(value.RawTx))
-	if err != nil {
-		return nil, nil, err
-	}
-	return value.RawTx, &msgTx, nil
-}
-
 func (db *ReadOnlyDBColumnFamily) GetTxCount(height uint32) (*prefixes.TxCountValue, error) {
 	handle, err := db.EnsureHandle(prefixes.TxCount)
 	if err != nil {
@ -879,162 +754,6 @@ func (db *ReadOnlyDBColumnFamily) GetTxCount(height uint32) (*prefixes.TxCountVa
 	return value, nil
 }

-func (db *ReadOnlyDBColumnFamily) GetTxHeight(txhash *chainhash.Hash) (uint32, error) {
-	handle, err := db.EnsureHandle(prefixes.TxNum)
-	if err != nil {
-		return 0, err
-	}
-
-	key := prefixes.TxNumKey{Prefix: []byte{prefixes.TxNum}, TxHash: txhash}
-	rawKey := key.PackKey()
-	slice, err := db.DB.GetCF(db.Opts, handle, rawKey)
-	defer slice.Free()
-	if err != nil {
-		return 0, err
-	}
-	if slice.Size() == 0 {
-		return 0, nil
-	}
-
-	// No slice copy needed. Value will be abandoned.
-	value := prefixes.TxNumValueUnpack(slice.Data())
-	height := stack.BisectRight(db.TxCounts, []uint32{value.TxNum})[0]
-	return height, nil
-}
-
-type TxMerkle struct {
-	TxHash *chainhash.Hash
-	RawTx  []byte
-	Height int
-	Pos    uint32
-	Merkle []*chainhash.Hash
-}
-
-// merklePath selects specific transactions by position within blockTxs.
-// The resulting merkle path (aka merkle branch, or merkle) is a list of TX hashes
-// which are in sibling relationship with TX nodes on the path to the root.
-func merklePath(pos uint32, blockTxs, partial []*chainhash.Hash) []*chainhash.Hash {
-	parent := func(p uint32) uint32 {
-		return p >> 1
-	}
-	sibling := func(p uint32) uint32 {
-		if p%2 == 0 {
-			return p + 1
-		} else {
-			return p - 1
-		}
-	}
-	p := parent(pos)
-	if p == 0 {
-		// No parent, path is complete.
-		return partial
-	}
-	// Add sibling to partial path and proceed to parent TX.
-	return merklePath(p, blockTxs, append(partial, blockTxs[sibling(pos)]))
-}
-
-func (db *ReadOnlyDBColumnFamily) GetTxMerkle(tx_hashes []chainhash.Hash) ([]TxMerkle, error) {
-
-	selectedTxNum := make([]*IterOptions, 0, len(tx_hashes))
-	for _, txhash := range tx_hashes {
-		key := prefixes.TxNumKey{Prefix: []byte{prefixes.TxNum}, TxHash: &txhash}
-		log.Debugf("%v", key)
-		opt, err := db.selectFrom(key.Prefix, &key, &key)
-		if err != nil {
-			return nil, err
-		}
-		selectedTxNum = append(selectedTxNum, opt...)
-	}
-
-	selectTxByTxNum := func(in []*prefixes.PrefixRowKV) ([]*IterOptions, error) {
-		txNumKey := in[0].Key.(*prefixes.TxNumKey)
-		log.Debugf("%v", txNumKey.TxHash.String())
-		out := make([]*IterOptions, 0, 100)
-		startKey := &prefixes.TxKey{
-			Prefix: []byte{prefixes.Tx},
-			TxHash: txNumKey.TxHash,
-		}
-		endKey := &prefixes.TxKey{
-			Prefix: []byte{prefixes.Tx},
-			TxHash: txNumKey.TxHash,
-		}
-		selectedTx, err := db.selectFrom([]byte{prefixes.Tx}, startKey, endKey)
-		if err != nil {
-			return nil, err
-		}
-		out = append(out, selectedTx...)
-		return out, nil
-	}
-
-	blockTxsCache := make(map[uint32][]*chainhash.Hash)
-	results := make([]TxMerkle, 0, 500)
-	for kvs := range innerJoin(db.DB, iterate(db.DB, selectedTxNum), selectTxByTxNum) {
-		if err := checkForError(kvs); err != nil {
-			return results, err
-		}
-		txNumKey, txNumVal := kvs[0].Key.(*prefixes.TxNumKey), kvs[0].Value.(*prefixes.TxNumValue)
-		_, txVal := kvs[1].Key.(*prefixes.TxKey), kvs[1].Value.(*prefixes.TxValue)
-		txHeight := stack.BisectRight(db.TxCounts, []uint32{txNumVal.TxNum})[0]
-		txPos := txNumVal.TxNum - db.TxCounts.Get(txHeight-1)
-		// We need all the TX hashes in order to select out the relevant ones.
-		if _, ok := blockTxsCache[txHeight]; !ok {
-			txs, err := db.GetBlockTXs(txHeight)
-			if err != nil {
-				return results, err
-			}
-			blockTxsCache[txHeight] = txs
-		}
-		blockTxs := blockTxsCache[txHeight]
-		results = append(results, TxMerkle{
-			TxHash: txNumKey.TxHash,
-			RawTx:  txVal.RawTx,
-			Height: int(txHeight),
-			Pos:    txPos,
-			Merkle: merklePath(txPos, blockTxs, []*chainhash.Hash{}),
-		})
-	}
-	return results, nil
-}
-
-func (db *ReadOnlyDBColumnFamily) GetClaimByID(claimID string) ([]*ExpandedResolveResult, []*ExpandedResolveResult, error) {
-	rows := make([]*ExpandedResolveResult, 0)
-	extras := make([]*ExpandedResolveResult, 0)
-	claimHash, err := hex.DecodeString(claimID)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	stream, err := db.FsGetClaimByHash(claimHash)
-	if err != nil {
-		return nil, nil, err
-	}
-	var res = NewExpandedResolveResult()
-	res.Stream = &optionalResolveResultOrError{res: stream}
-	rows = append(rows, res)
-
-	if stream != nil && stream.ChannelHash != nil {
-		channel, err := db.FsGetClaimByHash(stream.ChannelHash)
-		if err != nil {
-			return nil, nil, err
-		}
-		var res = NewExpandedResolveResult()
-		res.Channel = &optionalResolveResultOrError{res: channel}
-		extras = append(extras, res)
-	}
-
-	if stream != nil && stream.RepostedClaimHash != nil {
-		repost, err := db.FsGetClaimByHash(stream.RepostedClaimHash)
-		if err != nil {
-			return nil, nil, err
-		}
-		var res = NewExpandedResolveResult()
-		res.Repost = &optionalResolveResultOrError{res: repost}
-		extras = append(extras, res)
-	}
-
-	return rows, extras, nil
-}
-
 func (db *ReadOnlyDBColumnFamily) GetDBState() (*prefixes.DBStateValue, error) {
 	handle, err := db.EnsureHandle(prefixes.DBState)
 	if err != nil {
--- a/db/db_test.go
+++ b/db/db_test.go
@ -4,16 +4,16 @@ import (
 	"bytes"
 	"encoding/csv"
 	"encoding/hex"
+	"log"
 	"os"
 	"strings"
+	"sync"
 	"testing"

 	dbpkg "github.com/lbryio/herald.go/db"
 	"github.com/lbryio/herald.go/db/prefixes"
 	"github.com/lbryio/herald.go/internal"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	"github.com/linxGnu/grocksdb"
-	log "github.com/sirupsen/logrus"
 )

 ////////////////////////////////////////////////////////////////////////////////
@ -21,7 +21,7 @@ import (
 ////////////////////////////////////////////////////////////////////////////////

 // OpenAndFillTmpDBColumnFamlies opens a db and fills it with data from a csv file using the given column family names
-func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFamily, [][]string, error) {
+func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFamily, [][]string, func(), error) {

 	log.Println(filePath)
 	file, err := os.Open(filePath)
@ -31,7 +31,7 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami
 	reader := csv.NewReader(file)
 	records, err := reader.ReadAll()
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, nil, err
 	}

 	wOpts := grocksdb.NewDefaultWriteOptions()
@ -39,7 +39,7 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami
 	opts.SetCreateIfMissing(true)
 	db, err := grocksdb.OpenDb(opts, "tmp")
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, nil, err
 	}
 	var handleMap map[string]*grocksdb.ColumnFamilyHandle = make(map[string]*grocksdb.ColumnFamilyHandle)

@ -54,7 +54,7 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami
 		log.Println(cfName)
 		handle, err := db.CreateColumnFamily(opts, cfName)
 		if err != nil {
-			return nil, nil, err
+			return nil, nil, nil, err
 		}
 		handleMap[cfName] = handle
 	}
@ -68,16 +68,16 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami
 	for _, record := range records[1:] {
 		cf := record[0]
 		if err != nil {
-			return nil, nil, err
+			return nil, nil, nil, err
 		}
 		handle := handleMap[string(cf)]
 		key, err := hex.DecodeString(record[1])
 		if err != nil {
-			return nil, nil, err
+			return nil, nil, nil, err
 		}
 		val, err := hex.DecodeString(record[2])
 		if err != nil {
-			return nil, nil, err
+			return nil, nil, nil, err
 		}
 		db.PutCF(wOpts, handle, key, val)
 	}
@ -94,8 +94,11 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami
 		LastState:        nil,
 		Height:           0,
 		Headers:          nil,
-		Grp:              stop.New(),
-		Cleanup:          toDefer,
+		OpenIterators:    make(map[string][]chan struct{}),
+		ItMut:            sync.RWMutex{},
+		ShutdownChan:     make(chan struct{}, 1),
+		DoneChan:         make(chan struct{}, 1),
+		ShutdownCalled:   false,
 	}

 	// err = dbpkg.ReadDBState(myDB) //TODO: Figure out right place for this
@ -105,7 +108,7 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami

 	err = myDB.InitTxCounts()
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, nil, err
 	}

 	// err = dbpkg.InitHeaders(myDB)
@ -113,7 +116,7 @@ func OpenAndFillTmpDBColumnFamlies(filePath string) (*dbpkg.ReadOnlyDBColumnFami
 	// 	return nil, nil, nil, err
 	// }

-	return myDB, records, nil
+	return myDB, records, toDefer, nil
 }

 // OpenAndFillTmpDBCF opens a db and fills it with data from a csv file
@ -244,18 +247,17 @@ func CatCSV(filePath string) {

 func TestCatFullDB(t *testing.T) {
 	t.Skip("Skipping full db test")
-	grp := stop.New()
 	// url := "lbry://@lothrop#2/lothrop-livestream-games-and-code#c"
 	// "lbry://@lbry", "lbry://@lbry#3", "lbry://@lbry3f", "lbry://@lbry#3fda836a92faaceedfe398225fb9b2ee2ed1f01a", "lbry://@lbry:1", "lbry://@lbry$1"
 	// url := "lbry://@Styxhexenhammer666#2/legacy-media-baron-les-moonves-(cbs#9"
 	// url := "lbry://@lbry"
 	// url := "lbry://@lbry#3fda836a92faaceedfe398225fb9b2ee2ed1f01a"
-	dbPath := "/mnt/sda1/wallet_server/_data/lbry-rocksdb/"
+	dbPath := "/mnt/sda/wallet_server/_data/lbry-rocksdb/"
 	// dbPath := "/mnt/d/data/snapshot_1072108/lbry-rocksdb/"
 	secondaryPath := "asdf"
-	db, err := dbpkg.GetProdDB(dbPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := dbpkg.GetProdDB(dbPath, secondaryPath)

+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -275,7 +277,6 @@ func TestCatFullDB(t *testing.T) {
 // TestOpenFullDB Tests running a resolve on a full db.
 func TestOpenFullDB(t *testing.T) {
 	t.Skip("Skipping full db test")
-	grp := stop.New()
 	// url := "lbry://@lothrop#2/lothrop-livestream-games-and-code#c"
 	// "lbry://@lbry", "lbry://@lbry#3", "lbry://@lbry3f", "lbry://@lbry#3fda836a92faaceedfe398225fb9b2ee2ed1f01a", "lbry://@lbry:1", "lbry://@lbry$1"
 	// url := "lbry://@Styxhexenhammer666#2/legacy-media-baron-les-moonves-(cbs#9"
@ -283,11 +284,11 @@ func TestOpenFullDB(t *testing.T) {
 	// url := "lbry://@lbry#3fda836a92faaceedfe398225fb9b2ee2ed1f01a"
 	// url := "lbry://@lbry$1"
 	url := "https://lbry.tv/@lothrop:2/lothrop-livestream-games-and-code:c"
-	dbPath := "/mnt/sda1/wallet_server/_data/lbry-rocksdb/"
+	dbPath := "/mnt/sda/wallet_server/_data/lbry-rocksdb/"
 	// dbPath := "/mnt/d/data/snapshot_1072108/lbry-rocksdb/"
 	secondaryPath := "asdf"
-	db, err := dbpkg.GetProdDB(dbPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := dbpkg.GetProdDB(dbPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -301,13 +302,12 @@ func TestOpenFullDB(t *testing.T) {
 func TestResolve(t *testing.T) {
 	url := "lbry://@Styxhexenhammer666#2/legacy-media-baron-les-moonves-(cbs#9"
 	filePath := "../testdata/FULL_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 		return
 	}
-
+	defer toDefer()
 	expandedResolveResult := db.Resolve(url)
 	log.Printf("%#v\n", expandedResolveResult)
 	if expandedResolveResult != nil && expandedResolveResult.Channel != nil {
@ -321,11 +321,11 @@ func TestResolve(t *testing.T) {
 func TestGetDBState(t *testing.T) {
 	filePath := "../testdata/s_resolve.csv"
 	want := uint32(1072108)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()
 	state, err := db.GetDBState()
 	if err != nil {
 		t.Error(err)
@ -343,11 +343,11 @@ func TestGetRepostedClaim(t *testing.T) {
 	// Should be non-existent
 	channelHash2, _ := hex.DecodeString("2556ed1cab9d17f2a9392030a9ad7f5d138f11bf")
 	filePath := "../testdata/W_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()

 	count, err := db.GetRepostedCount(channelHash)
 	if err != nil {
@ -376,11 +376,11 @@ func TestGetRepostedCount(t *testing.T) {
 	// Should be non-existent
 	channelHash2, _ := hex.DecodeString("2556ed1cab9d17f2a9392030a9ad7f5d138f11bf")
 	filePath := "../testdata/j_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()

 	count, err := db.GetRepostedCount(channelHash)
 	if err != nil {
@ -413,11 +413,11 @@ func TestGetRepost(t *testing.T) {
 	channelHash2, _ := hex.DecodeString("000009ca6e0caaaef16872b4bd4f6f1b8c2363e2")
 	filePath := "../testdata/V_resolve.csv"
 	// want := uint32(3670)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()

 	res, err := db.GetRepost(channelHash)
 	if err != nil {
@ -447,12 +447,11 @@ func TestGetClaimsInChannelCount(t *testing.T) {
 	channelHash, _ := hex.DecodeString("2556ed1cab9d17f2a9392030a9ad7f5d138f11bd")
 	filePath := "../testdata/Z_resolve.csv"
 	want := uint32(3670)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	count, err := db.GetClaimsInChannelCount(channelHash)
 	if err != nil {
 		t.Error(err)
@ -477,12 +476,11 @@ func TestGetShortClaimIdUrl(t *testing.T) {
 	var position uint16 = 0
 	filePath := "../testdata/F_resolve.csv"
 	log.Println(filePath)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	shortUrl, err := db.GetShortClaimIdUrl(name, normalName, claimHash, rootTxNum, position)
 	if err != nil {
 		t.Error(err)
@ -496,11 +494,11 @@ func TestClaimShortIdIter(t *testing.T) {
 	filePath := "../testdata/F_cat.csv"
 	normalName := "cat"
 	claimId := "0"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()

 	ch := db.ClaimShortIdIter(normalName, claimId)

@ -526,12 +524,11 @@ func TestGetTXOToClaim(t *testing.T) {
 	var txNum uint32 = 1456296
 	var position uint16 = 0
 	filePath := "../testdata/G_2.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	val, err := db.GetCachedClaimHash(txNum, position)
 	if err != nil {
 		t.Error(err)
@ -555,11 +552,11 @@ func TestGetClaimToChannel(t *testing.T) {
 	var val []byte = nil

 	filePath := "../testdata/I_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()

 	val, err = db.GetChannelForClaim(claimHash, txNum, position)
 	if err != nil {
@ -584,11 +581,11 @@ func TestGetEffectiveAmountSupportOnly(t *testing.T) {
 	want := uint64(20000006)
 	claimHashStr := "00000324e40fcb63a0b517a3660645e9bd99244a"
 	claimHash, _ := hex.DecodeString(claimHashStr)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
+	defer toDefer()
 	db.Height = 999999999

 	amount, err := db.GetEffectiveAmount(claimHash, true)
@ -614,12 +611,11 @@ func TestGetEffectiveAmount(t *testing.T) {
 	want := uint64(21000006)
 	claimHashStr := "00000324e40fcb63a0b517a3660645e9bd99244a"
 	claimHash, _ := hex.DecodeString(claimHashStr)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	db.Height = 999999999

 	amount, err := db.GetEffectiveAmount(claimHash, false)
@ -652,12 +648,11 @@ func TestGetSupportAmount(t *testing.T) {
 		t.Error(err)
 	}
 	filePath := "../testdata/a_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	res, err := db.GetSupportAmount(claimHash)
 	if err != nil {
 		t.Error(err)
@ -673,12 +668,11 @@ func TestGetTxHash(t *testing.T) {
 	want := "54e14ff0c404c29b3d39ae4d249435f167d5cd4ce5a428ecb745b3df1c8e3dde"

 	filePath := "../testdata/X_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	resHash, err := db.GetTxHash(txNum)
 	if err != nil {
 		t.Error(err)
@ -716,12 +710,11 @@ func TestGetActivation(t *testing.T) {
 	txNum := uint32(0x6284e3)
 	position := uint16(0x0)
 	want := uint32(0xa6b65)
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 	}
-
+	defer toDefer()
 	activation, err := db.GetActivation(txNum, position)
 	if err != nil {
 		t.Error(err)
@ -748,13 +741,12 @@ func TestGetClaimToTXO(t *testing.T) {
 		return
 	}
 	filePath := "../testdata/E_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 		return
 	}
-
+	defer toDefer()
 	res, err := db.GetCachedClaimTxo(claimHash, true)
 	if err != nil {
 		t.Error(err)
@ -778,13 +770,12 @@ func TestGetControllingClaim(t *testing.T) {
 	claimName := internal.NormalizeName("@Styxhexenhammer666")
 	claimHash := "2556ed1cab9d17f2a9392030a9ad7f5d138f11bd"
 	filePath := "../testdata/P_resolve.csv"
-	db, _, err := OpenAndFillTmpDBColumnFamlies(filePath)
-	defer db.Shutdown()
+	db, _, toDefer, err := OpenAndFillTmpDBColumnFamlies(filePath)
 	if err != nil {
 		t.Error(err)
 		return
 	}
-
+	defer toDefer()
 	res, err := db.GetControllingClaim(claimName)
 	if err != nil {
 		t.Error(err)
--- a/db/iteroptions.go
+++ b/db/iteroptions.go
@ -6,7 +6,6 @@ import (
 	"bytes"

 	"github.com/lbryio/herald.go/db/prefixes"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	"github.com/linxGnu/grocksdb"

 	log "github.com/sirupsen/logrus"
@ -23,11 +22,12 @@ type IterOptions struct {
 	IncludeValue bool
 	RawKey       bool
 	RawValue     bool
-	Grp          *stop.Group
-	// DB           *ReadOnlyDBColumnFamily
-	CfHandle   *grocksdb.ColumnFamilyHandle
-	It         *grocksdb.Iterator
-	Serializer *prefixes.SerializationAPI
+	ShutdownChan chan struct{}
+	DoneChan     chan struct{}
+	DB           *ReadOnlyDBColumnFamily
+	CfHandle     *grocksdb.ColumnFamilyHandle
+	It           *grocksdb.Iterator
+	Serializer   *prefixes.SerializationAPI
 }

 // NewIterateOptions creates a defualt options structure for a db iterator.
@ -43,11 +43,12 @@ func NewIterateOptions() *IterOptions {
 		IncludeValue: false,
 		RawKey:       false,
 		RawValue:     false,
-		Grp:          nil,
-		// DB:           nil,
-		CfHandle:   nil,
-		It:         nil,
-		Serializer: prefixes.ProductionAPI,
+		ShutdownChan: make(chan struct{}, 1),
+		DoneChan:     make(chan struct{}, 1),
+		DB:           nil,
+		CfHandle:     nil,
+		It:           nil,
+		Serializer:   prefixes.ProductionAPI,
 	}
 }

@ -107,9 +108,7 @@ func (o *IterOptions) WithRawValue(rawValue bool) *IterOptions {
 }

 func (o *IterOptions) WithDB(db *ReadOnlyDBColumnFamily) *IterOptions {
-	// o.Grp.AddNamed(1, iterKey)
-	o.Grp = stop.New(db.Grp)
-	o.Grp.Add(1)
+	o.DB = db
 	return o
 }

--- a/db/prefixes/generic.go
+++ b/db/prefixes/generic.go
@ -7,7 +7,6 @@ import (
 	"strings"

 	"github.com/go-restruct/restruct"
-	"github.com/lbryio/herald.go/internal"
 	"github.com/lbryio/lbcd/chaincfg/chainhash"
 )

@ -60,34 +59,6 @@ func (kv *BlockTxsValue) Unpack(buf []byte, order binary.ByteOrder) ([]byte, err
 	return buf[offset:], nil
 }

-// Struct BigEndianChainHash is a chainhash.Hash stored in external
-// byte-order (opposite of other 32 byte chainhash.Hash values). In order
-// to reuse chainhash.Hash we need to correct the byte-order.
-// Currently this type is used for field Genesis of DBStateValue.
-
-func (kv *BigEndianChainHash) SizeOf() int {
-	return chainhash.HashSize
-}
-
-func (kv *BigEndianChainHash) Pack(buf []byte, order binary.ByteOrder) ([]byte, error) {
-	offset := 0
-	hash := kv.CloneBytes()
-	// HACK: Instances of chainhash.Hash use the internal byte-order.
-	// Python scribe writes bytes of genesis hash in external byte-order.
-	internal.ReverseBytesInPlace(hash)
-	offset += copy(buf[offset:chainhash.HashSize], hash[:])
-	return buf[offset:], nil
-}
-
-func (kv *BigEndianChainHash) Unpack(buf []byte, order binary.ByteOrder) ([]byte, error) {
-	offset := 0
-	offset += copy(kv.Hash[:], buf[offset:32])
-	// HACK: Instances of chainhash.Hash use the internal byte-order.
-	// Python scribe writes bytes of genesis hash in external byte-order.
-	internal.ReverseBytesInPlace(kv.Hash[:])
-	return buf[offset:], nil
-}
-
 func genericNew(prefix []byte, key bool) (interface{}, error) {
 	t, ok := prefixRegistry[prefix[0]]
 	if !ok {
--- a/db/prefixes/prefixes.go
+++ b/db/prefixes/prefixes.go
@ -12,13 +12,13 @@ import (
 	"encoding/binary"
 	"encoding/hex"
 	"fmt"
+	"log"
 	"reflect"
 	"sort"
 	"strings"

 	"github.com/lbryio/herald.go/internal"
 	"github.com/lbryio/lbcd/chaincfg/chainhash"
-	log "github.com/sirupsen/logrus"
 )

 const (
@ -182,25 +182,12 @@ func NewLengthEncodedPartialClaimId(s string) LengthEncodedPartialClaimId {
 	}
 }

-type BigEndianChainHash struct {
-	chainhash.Hash
-}
-
-func NewBigEndianChainHash(hash *chainhash.Hash) BigEndianChainHash {
-	if hash != nil {
-		return BigEndianChainHash{
-			*hash,
-		}
-	}
-	return BigEndianChainHash{}
-}
-
 type DBStateKey struct {
 	Prefix []byte `struct:"[1]byte" json:"prefix"`
 }

 type DBStateValue struct {
-	Genesis        BigEndianChainHash
+	Genesis        *chainhash.Hash
 	Height         uint32
 	TxCount        uint32
 	Tip            *chainhash.Hash
@ -216,7 +203,7 @@ type DBStateValue struct {

 func NewDBStateValue() *DBStateValue {
 	return &DBStateValue{
-		Genesis:        NewBigEndianChainHash(nil),
+		Genesis:        new(chainhash.Hash),
 		Height:         0,
 		TxCount:        0,
 		Tip:            new(chainhash.Hash),
@ -250,11 +237,7 @@ func (v *DBStateValue) PackValue() []byte {
 	// b'>32sLL32sLLBBlllL'
 	n := 32 + 4 + 4 + 32 + 4 + 4 + 1 + 1 + 4 + 4 + 4 + 4
 	value := make([]byte, n)
-	genesis := v.Genesis.CloneBytes()
-	// HACK: Instances of chainhash.Hash use the internal byte-order.
-	// Python scribe writes bytes of genesis hash in external byte-order.
-	internal.ReverseBytesInPlace(genesis)
-	copy(value, genesis[:32])
+	copy(value, v.Genesis[:32])
 	binary.BigEndian.PutUint32(value[32:], v.Height)
 	binary.BigEndian.PutUint32(value[32+4:], v.TxCount)
 	copy(value[32+4+4:], v.Tip[:32])
@ -299,11 +282,8 @@ func DBStateKeyUnpack(key []byte) *DBStateKey {
 func DBStateValueUnpack(value []byte) *DBStateValue {
 	genesis := (*chainhash.Hash)(value[:32])
 	tip := (*chainhash.Hash)(value[32+4+4 : 32+4+4+32])
-	// HACK: Python scribe writes bytes of genesis hash in external byte-order.
-	// Instances of chainhash.Hash should use the internal byte-order.
-	internal.ReverseBytesInPlace(genesis[:])
 	x := &DBStateValue{
-		Genesis:        NewBigEndianChainHash(genesis),
+		Genesis:        genesis,
 		Height:         binary.BigEndian.Uint32(value[32:]),
 		TxCount:        binary.BigEndian.Uint32(value[32+4:]),
 		Tip:            tip,
@ -728,7 +708,7 @@ type BlockTxsKey struct {
 }

 type BlockTxsValue struct {
-	TxHashes []*chainhash.Hash `struct:"*[32]byte" struct-while:"!_eof" json:"tx_hashes"`
+	TxHashes []*chainhash.Hash `struct-while:"!_eof" json:"tx_hashes"`
 }

 func (k *BlockTxsKey) NewBlockTxsKey(height uint32) *BlockTxsKey {
@ -1070,6 +1050,84 @@ func TxNumValueUnpack(value []byte) *TxNumValue {
 	}
 }

+type TxKey struct {
+	Prefix []byte          `struct:"[1]byte" json:"prefix"`
+	TxHash *chainhash.Hash `struct:"*[32]byte" json:"tx_hash"`
+}
+
+type TxValue struct {
+	RawTx []byte `struct-while:"!_eof" json:"raw_tx"`
+}
+
+func (k *TxKey) PackKey() []byte {
+	prefixLen := 1
+	// b'>L'
+	n := prefixLen + 32
+	key := make([]byte, n)
+	copy(key, k.Prefix)
+	copy(key[prefixLen:], k.TxHash[:32])
+
+	return key
+}
+
+func (v *TxValue) PackValue() []byte {
+	value := make([]byte, len(v.RawTx))
+	copy(value, v.RawTx)
+
+	return value
+}
+
+func (kv *TxKey) NumFields() int {
+	return 1
+}
+
+func (k *TxKey) PartialPack(fields int) []byte {
+	// Limit fields between 0 and number of fields, we always at least need
+	// the prefix, and we never need to iterate past the number of fields.
+	if fields > 1 {
+		fields = 1
+	}
+	if fields < 0 {
+		fields = 0
+	}
+
+	prefixLen := 1
+	var n = prefixLen
+	for i := 0; i <= fields; i++ {
+		switch i {
+		case 1:
+			n += 32
+		}
+	}
+
+	key := make([]byte, n)
+
+	for i := 0; i <= fields; i++ {
+		switch i {
+		case 0:
+			copy(key, k.Prefix)
+		case 1:
+			copy(key[prefixLen:], k.TxHash[:32])
+		}
+	}
+
+	return key
+}
+
+func TxKeyUnpack(key []byte) *TxKey {
+	prefixLen := 1
+	return &TxKey{
+		Prefix: key[:prefixLen],
+		TxHash: (*chainhash.Hash)(key[prefixLen : prefixLen+32]),
+	}
+}
+
+func TxValueUnpack(value []byte) *TxValue {
+	return &TxValue{
+		RawTx: value,
+	}
+}
+
 type BlockHeaderKey struct {
 	Prefix []byte `struct:"[1]byte" json:"prefix"`
 	Height uint32 `json:"height"`
@ -3293,12 +3351,9 @@ func (kv *TrendingNotificationValue) UnpackValue(buf []byte) {
 	offset += 8
 }

-type TxKey = MempoolTxKey
-type TxValue = MempoolTxValue
-
 type MempoolTxKey struct {
-	Prefix []byte          `struct:"[1]byte" json:"prefix"`
-	TxHash *chainhash.Hash `struct:"*[32]byte" json:"tx_hash"`
+	Prefix []byte `struct:"[1]byte"  json:"prefix"`
+	TxHash []byte `struct:"[32]byte" json:"tx_hash"`
 }

 type MempoolTxValue struct {
@ -3331,7 +3386,7 @@ func (kv *MempoolTxKey) UnpackKey(buf []byte) {
 	offset := 0
 	kv.Prefix = buf[offset : offset+1]
 	offset += 1
-	kv.TxHash = (*chainhash.Hash)(buf[offset : offset+32])
+	kv.TxHash = buf[offset : offset+32]
 	offset += 32
 }

@ -3413,7 +3468,7 @@ func (kv *TouchedHashXValue) UnpackValue(buf []byte) {

 type HashXStatusKey struct {
 	Prefix []byte `struct:"[1]byte" json:"prefix"`
-	HashX  []byte `struct:"[11]byte" json:"hashX"`
+	HashX  []byte `struct:"[20]byte" json:"hashX"`
 }

 type HashXStatusValue struct {
@ -3425,15 +3480,15 @@ func (kv *HashXStatusKey) NumFields() int {
 }

 func (kv *HashXStatusKey) PartialPack(fields int) []byte {
-	// b'>20s' (really HASHX_LEN 11 bytes)
-	n := len(kv.Prefix) + 11
+	// b'>20s'
+	n := len(kv.Prefix) + 20
 	buf := make([]byte, n)
 	offset := 0
 	offset += copy(buf[offset:], kv.Prefix[:1])
 	if fields <= 0 {
 		return buf[:offset]
 	}
-	offset += copy(buf[offset:], kv.HashX[:11])
+	offset += copy(buf[offset:], kv.HashX[:20])
 	return buf[:offset]
 }

@ -3442,12 +3497,12 @@ func (kv *HashXStatusKey) PackKey() []byte {
 }

 func (kv *HashXStatusKey) UnpackKey(buf []byte) {
-	// b'>20s' (really HASHX_LEN 11 bytes)
+	// b'>20s'
 	offset := 0
 	kv.Prefix = buf[offset : offset+1]
 	offset += 1
-	kv.HashX = buf[offset : offset+11]
-	offset += 11
+	kv.HashX = buf[offset : offset+20]
+	offset += 20
 }

 func (kv *HashXStatusValue) PackValue() []byte {
@ -3870,6 +3925,12 @@ var prefixRegistry = map[byte]prefixMeta{
 		newValue: func() interface{} {
 			return &TxValue{}
 		},
+		newKeyUnpack: func(buf []byte) interface{} {
+			return TxKeyUnpack(buf)
+		},
+		newValueUnpack: func(buf []byte) interface{} {
+			return TxValueUnpack(buf)
+		},
 	},
 	BlockHash: {
 		newKey: func() interface{} {
--- a/db/prefixes/prefixes_test.go
+++ b/db/prefixes/prefixes_test.go
@ -6,6 +6,7 @@ import (
 	"encoding/csv"
 	"encoding/hex"
 	"fmt"
+	"log"
 	"math"
 	"math/big"
 	"os"
@ -15,7 +16,6 @@ import (
 	dbpkg "github.com/lbryio/herald.go/db"
 	prefixes "github.com/lbryio/herald.go/db/prefixes"
 	"github.com/linxGnu/grocksdb"
-	log "github.com/sirupsen/logrus"
 )

 func TestPrefixRegistry(t *testing.T) {
--- a/go.mod
+++ b/go.mod
@ -27,8 +27,6 @@ require (
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f // indirect
-	github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd // indirect
-	github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
--- a/go.sum
+++ b/go.sum
@ -68,13 +68,11 @@ github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufo
 github.com/btcsuite/btcutil v0.0.0-20190207003914-4c204d697803/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
 github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
 github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce/go.mod h1:0DVlHczLPewLcPGEIeUEzfOJhqGPQ0mJJRDBtD307+o=
-github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd h1:R/opQEbFEy9JGkIguV40SvRY1uliPX8ifOvi6ICsFCw=
 github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd/go.mod h1:HHNXQzUsZCxOoE+CPiyCTO6x34Zs86zZUiwtpXoGdtg=
 github.com/btcsuite/goleveldb v0.0.0-20160330041536-7834afc9e8cd/go.mod h1:F+uVaaLLH7j4eDXPRvw78tMflu7Ie2bzYOH4Y8rRKBY=
 github.com/btcsuite/goleveldb v1.0.0/go.mod h1:QiK9vBlgftBg6rWQIj6wFzbPfRjiykIEhBH4obrXJ/I=
 github.com/btcsuite/snappy-go v0.0.0-20151229074030-0bdef8d06723/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
 github.com/btcsuite/snappy-go v1.0.0/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg3lh6TiUghc=
-github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 h1:R8vQdOQdZ9Y3SkEwmHoWBmX1DNXhXZqlTpq6s4tyJGc=
 github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792/go.mod h1:ghJtEyQwv5/p4Mg4C0fgbePVuGr935/5ddU9Z3TmDRY=
 github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46fmI40EZs=
 github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
--- a/internal/types.go
+++ b/internal/types.go
@ -4,7 +4,6 @@ package internal

 // HeightHash struct for the height subscription endpoint.
 type HeightHash struct {
-	Height      uint64
-	BlockHash   []byte
-	BlockHeader []byte
+	Height    uint64
+	BlockHash []byte
 }
--- a/main.go
+++ b/main.go
@ -10,10 +10,8 @@ import (
 	"github.com/lbryio/herald.go/internal"
 	pb "github.com/lbryio/herald.go/protobuf/go"
 	"github.com/lbryio/herald.go/server"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	log "github.com/sirupsen/logrus"
 	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials/insecure"
 )

 func main() {
@ -29,22 +27,40 @@ func main() {

 	if args.CmdType == server.ServeCmd {
 		// This will cancel goroutines with the server finishes.
-		stopGroup := stop.New()
+		ctxWCancel, cancel := context.WithCancel(ctx)
+		defer cancel()

 		initsignals()
 		interrupt := interruptListener()

-		s := server.MakeHubServer(stopGroup, args)
+		s := server.MakeHubServer(ctxWCancel, args)
 		go s.Run()

-		defer s.Stop()
+		defer func() {
+			log.Println("Shutting down server...")
+
+			if s.EsClient != nil {
+				log.Println("Stopping es client...")
+				s.EsClient.Stop()
+			}
+			if s.GrpcServer != nil {
+				log.Println("Stopping grpc server...")
+				s.GrpcServer.GracefulStop()
+			}
+			if s.DB != nil {
+				log.Println("Stopping database connection...")
+				s.DB.Shutdown()
+			}
+
+			log.Println("Returning from main...")
+		}()

 		<-interrupt
 		return
 	}

-	conn, err := grpc.Dial("localhost:"+fmt.Sprintf("%d", args.Port),
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
+	conn, err := grpc.Dial("localhost:"+args.Port,
+		grpc.WithInsecure(),
 		grpc.WithBlock(),
 	)
 	if err != nil {
--- a/scripts/integration_tests.sh
+++ b/scripts/integration_tests.sh
@ -88,7 +88,7 @@ test_command_with_want

 ### blockchain.block.get_chunk
 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.block.get_chunk", "params": [0]}'
 	| jq .result | sed 's/"//g' | head -c 100
 EOM
@ -97,7 +97,7 @@ test_command_with_want

 ### blockchain.block.get_header
 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.block.get_header", "params": []}'
 	| jq .result.timestamp
 EOM
@ -106,7 +106,7 @@ test_command_with_want

 ### blockchain.block.headers
 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.block.headers", "params": []}'
 	| jq .result.count
 EOM
@ -116,7 +116,7 @@ test_command_with_want
 ## blockchain.claimtrie

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.claimtrie.resolve", "params":[{"Data": ["@Styxhexenhammer666:2"]}]}'
 	| jq .result.txos[0].tx_hash | sed 's/"//g'
 EOM
@ -128,7 +128,7 @@ test_command_with_want
 ### blockchain.address.get_balance

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.address.get_balance", "params":[{"Address": "bGqWuXRVm5bBqLvLPEQQpvsNxJ5ubc6bwN"}]}'
 	| jq .result.confirmed
 EOM
@ -138,7 +138,7 @@ test_command_with_want
 ## blockchain.address.get_history

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.address.get_history", "params":[{"Address": "bGqWuXRVm5bBqLvLPEQQpvsNxJ5ubc6bwN"}]}'
 	| jq '.result.confirmed | length'
 EOM
@ -148,7 +148,7 @@ test_command_with_want
 ## blockchain.address.listunspent

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.address.listunspent", "params":[{"Address": "bGqWuXRVm5bBqLvLPEQQpvsNxJ5ubc6bwN"}]}'
 	| jq '.result | length'
 EOM
@ -160,7 +160,7 @@ test_command_with_want
 ## blockchain.scripthash.get_mempool

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.scripthash.get_mempool", "params":[{"scripthash": "bGqWuXRVm5bBqLvLPEQQpvsNxJ5ubc6bwN"}]}'
 	| jq .error | sed 's/"//g'
 EOM
@ -170,7 +170,7 @@ test_command_with_want
 ## blockchain.scripthash.get_history

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.scripthash.get_history", "params":[{"scripthash": "bGqWuXRVm5bBqLvLPEQQpvsNxJ5ubc6bwN"}]}'
 	| jq .error | sed 's/"//g'
 EOM
@ -180,42 +180,13 @@ test_command_with_want
 ## blockchain.scripthash.listunspent

 read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
+	curl http://127.0.0.1:50001/rpc -s -H "Content-Type: application/json"
 	--data '{"id": 1, "method": "blockchain.scripthash.listunspent", "params":[{"scripthash": "bGqWuXRVm5bBqLvLPEQQpvsNxJ5ubc6bwN"}]}'
 	| jq .error | sed 's/"//g'
 EOM
 WANT="encoding/hex: invalid byte: U+0047 'G'"
 test_command_with_want

-## server.banner 
-
-read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
-	--data '{"id": 1, "method": "server.banner", "params":[]}'
-	| jq .result | sed 's/"//g'
-EOM
-WANT="You are connected to an 0.107.0 server."
-test_command_with_want
-
-## server.version
-
-read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
-	--data '{"id": 1, "method": "server.version", "params":[]}'
-	| jq .result | sed 's/"//g'
-EOM
-WANT="0.107.0"
-test_command_with_want
-
-## server.features
-
-read -r -d '' CMD <<- EOM
-	curl http://127.0.0.1:50002/rpc -s -H "Content-Type: application/json"
-	--data '{"id": 1, "method": "server.features", "params":[]}'
-EOM
-WANT='{"result":{"hosts":{},"pruning":"","server_version":"0.107.0","protocol_min":"0.54.0","protocol_max":"0.199.0","genesis_hash":"9c89283ba0f3227f6c03b70216b9f665f0118d5e0fa729cedf4fb34d6a34f463","description":"Herald","payment_address":"","donation_address":"","daily_fee":"1.0","hash_function":"sha256","trending_algorithm":"fast_ar"},"error":null,"id":1}'
-test_command_with_want
-
 # metrics endpoint testing

 WANT=0
--- a/server/args.go
+++ b/server/args.go
@ -3,7 +3,6 @@ package server
 import (
 	"fmt"
 	"log"
-	"net/url"
 	"os"
 	"strconv"
 	"strings"
@ -23,15 +22,13 @@ const (
 type Args struct {
 	CmdType             int
 	Host                string
-	Port                int
+	Port                string
 	DBPath              string
 	Chain               *string
-	DaemonURL           *url.URL
-	DaemonCAPath        string
 	EsHost              string
-	EsPort              int
-	PrometheusPort      int
-	NotifierPort        int
+	EsPort              string
+	PrometheusPort      string
+	NotifierPort        string
 	JSONRPCPort         int
 	JSONRPCHTTPPort     int
 	MaxSessions         int
@ -69,24 +66,24 @@ type Args struct {
 }

 const (
-	DefaultHost            = "0.0.0.0"
-	DefaultPort            = 50051
-	DefaultDBPath          = "/mnt/d/data/snapshot_1072108/lbry-rocksdb/" // FIXME
-	DefaultEsHost          = "http://localhost"
-	DefaultEsIndex         = "claims"
-	DefaultEsPort          = 9200
-	DefaultPrometheusPort  = 2112
-	DefaultNotifierPort    = 18080
-	DefaultJSONRPCPort     = 50001
-	DefaultJSONRPCHTTPPort = 50002
-	DefaultMaxSessions     = 10000
-	DefaultSessionTimeout  = 300
-	DefaultRefreshDelta    = 5
-	DefaultCacheTTL        = 5
-	DefaultPeerFile        = "peers.txt"
-	DefaultBannerFile      = ""
-	DefaultCountry         = "US"
+	DefaultHost           = "0.0.0.0"
+	DefaultPort           = "50051"
+	DefaultDBPath         = "/mnt/d/data/snapshot_1072108/lbry-rocksdb/" // FIXME
+	DefaultEsHost         = "http://localhost"
+	DefaultEsIndex        = "claims"
+	DefaultEsPort         = "9200"
+	DefaultPrometheusPort = "2112"
+	DefaultNotifierPort   = "18080"
+	DefaultJSONRPCPort    = 50001
+	DefaultMaxSessions    = 10000
+	DefaultSessionTimeout = 300
+	DefaultRefreshDelta   = 5
+	DefaultCacheTTL       = 5
+	DefaultPeerFile       = "peers.txt"
+	DefaultBannerFile     = ""
+	DefaultCountry        = "US"

+	GENESIS_HASH             = "9c89283ba0f3227f6c03b70216b9f665f0118d5e0fa729cedf4fb34d6a34f463"
 	HUB_PROTOCOL_VERSION     = "0.107.0"
 	PROTOCOL_MIN             = "0.54.0"
 	PROTOCOL_MAX             = "0.199.0"
@ -135,26 +132,23 @@ func loadBanner(bannerFile *string, serverVersion string) *string {
 // MakeDefaultArgs creates a default set of arguments for testing the server.
 func MakeDefaultTestArgs() *Args {
 	args := &Args{
-		CmdType:         ServeCmd,
-		Host:            DefaultHost,
-		Port:            DefaultPort,
-		DBPath:          DefaultDBPath,
-		EsHost:          DefaultEsHost,
-		EsPort:          DefaultEsPort,
-		PrometheusPort:  DefaultPrometheusPort,
-		NotifierPort:    DefaultNotifierPort,
-		JSONRPCPort:     DefaultJSONRPCPort,
-		JSONRPCHTTPPort: DefaultJSONRPCHTTPPort,
-		MaxSessions:     DefaultMaxSessions,
-		SessionTimeout:  DefaultSessionTimeout,
-		EsIndex:         DefaultEsIndex,
-		RefreshDelta:    DefaultRefreshDelta,
-		CacheTTL:        DefaultCacheTTL,
-		PeerFile:        DefaultPeerFile,
-		Banner:          nil,
-		Country:         DefaultCountry,
+		CmdType:        ServeCmd,
+		Host:           DefaultHost,
+		Port:           DefaultPort,
+		DBPath:         DefaultDBPath,
+		EsHost:         DefaultEsHost,
+		EsPort:         DefaultEsPort,
+		PrometheusPort: DefaultPrometheusPort,
+		NotifierPort:   DefaultNotifierPort,
+		JSONRPCPort:    DefaultJSONRPCPort,
+		EsIndex:        DefaultEsIndex,
+		RefreshDelta:   DefaultRefreshDelta,
+		CacheTTL:       DefaultCacheTTL,
+		PeerFile:       DefaultPeerFile,
+		Banner:         nil,
+		Country:        DefaultCountry,

-		GenesisHash:       chaincfg.TestNet3Params.GenesisHash.String(),
+		GenesisHash:       GENESIS_HASH,
 		ServerVersion:     HUB_PROTOCOL_VERSION,
 		ProtocolMin:       PROTOCOL_MIN,
 		ProtocolMax:       PROTOCOL_MAX,
@ -206,19 +200,10 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {
 	environment := GetEnvironmentStandard()
 	parser := argparse.NewParser("herald", "herald server and client")

-	serveCmd := parser.NewCommand("serve", "start the herald server")
+	serveCmd := parser.NewCommand("serve", "start the hub server")
 	searchCmd := parser.NewCommand("search", "claim search")
 	dbCmd := parser.NewCommand("db", "db testing")

-	defaultDaemonURL := "http://localhost:9245"
-	if url, ok := environment["DAEMON_URL"]; ok {
-		defaultDaemonURL = url
-	}
-
-	validateURL := func(arg []string) error {
-		_, err := url.Parse(arg[0])
-		return err
-	}
 	validatePort := func(arg []string) error {
 		_, err := strconv.ParseUint(arg[0], 10, 16)
 		return err
@ -226,18 +211,16 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {

 	// main server config arguments
 	host := parser.String("", "rpchost", &argparse.Options{Required: false, Help: "RPC host", Default: DefaultHost})
-	port := parser.Int("", "rpcport", &argparse.Options{Required: false, Help: "RPC port", Validate: validatePort, Default: DefaultPort})
+	port := parser.String("", "rpcport", &argparse.Options{Required: false, Help: "RPC port", Default: DefaultPort})
 	dbPath := parser.String("", "db-path", &argparse.Options{Required: false, Help: "RocksDB path", Default: DefaultDBPath})
 	chain := parser.Selector("", "chain", []string{chaincfg.MainNetParams.Name, chaincfg.TestNet3Params.Name, chaincfg.RegressionNetParams.Name, "testnet"},
 		&argparse.Options{Required: false, Help: "Which chain to use, default is 'mainnet'. Values 'regtest' and 'testnet' are for testing", Default: chaincfg.MainNetParams.Name})
-	daemonURLStr := parser.String("", "daemon-url", &argparse.Options{Required: false, Help: "URL for rpc to lbrycrd or lbcd, <rpcuser>:<rpcpassword>@<lbcd rpc ip><lbrcd rpc port>.", Validate: validateURL, Default: defaultDaemonURL})
-	daemonCAPath := parser.String("", "daemon-ca-path", &argparse.Options{Required: false, Help: "Path to the lbcd CA file. Use SSL certificate to verify connection to lbcd."})
 	esHost := parser.String("", "eshost", &argparse.Options{Required: false, Help: "elasticsearch host", Default: DefaultEsHost})
-	esPort := parser.Int("", "esport", &argparse.Options{Required: false, Help: "elasticsearch port", Default: DefaultEsPort})
-	prometheusPort := parser.Int("", "prometheus-port", &argparse.Options{Required: false, Help: "prometheus port", Default: DefaultPrometheusPort})
-	notifierPort := parser.Int("", "notifier-port", &argparse.Options{Required: false, Help: "notifier port", Default: DefaultNotifierPort})
-	jsonRPCPort := parser.Int("", "json-rpc-port", &argparse.Options{Required: false, Help: "JSON RPC port", Validate: validatePort, Default: DefaultJSONRPCPort})
-	jsonRPCHTTPPort := parser.Int("", "json-rpc-http-port", &argparse.Options{Required: false, Help: "JSON RPC over HTTP port", Validate: validatePort, Default: DefaultJSONRPCHTTPPort})
+	esPort := parser.String("", "esport", &argparse.Options{Required: false, Help: "elasticsearch port", Default: DefaultEsPort})
+	prometheusPort := parser.String("", "prometheus-port", &argparse.Options{Required: false, Help: "prometheus port", Default: DefaultPrometheusPort})
+	notifierPort := parser.String("", "notifier-port", &argparse.Options{Required: false, Help: "notifier port", Default: DefaultNotifierPort})
+	jsonRPCPort := parser.Int("", "json-rpc-port", &argparse.Options{Required: false, Help: "JSON RPC port", Validate: validatePort})
+	jsonRPCHTTPPort := parser.Int("", "json-rpc-http-port", &argparse.Options{Required: false, Help: "JSON RPC over HTTP port", Validate: validatePort})
 	maxSessions := parser.Int("", "max-sessions", &argparse.Options{Required: false, Help: "Maximum number of electrum clients that can be connected", Default: DefaultMaxSessions})
 	sessionTimeout := parser.Int("", "session-timeout", &argparse.Options{Required: false, Help: "Session inactivity timeout (seconds)", Default: DefaultSessionTimeout})
 	esIndex := parser.String("", "esindex", &argparse.Options{Required: false, Help: "elasticsearch index name", Default: DefaultEsIndex})
@ -291,11 +274,6 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {
 		*jsonRPCPort = DefaultJSONRPCPort
 	}

-	daemonURL, err := url.Parse(*daemonURLStr)
-	if err != nil {
-		log.Fatalf("URL parse failed: %v", err)
-	}
-
 	banner := loadBanner(bannerFile, HUB_PROTOCOL_VERSION)

 	args := &Args{
@ -304,8 +282,6 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {
 		Port:                *port,
 		DBPath:              *dbPath,
 		Chain:               chain,
-		DaemonURL:           daemonURL,
-		DaemonCAPath:        *daemonCAPath,
 		EsHost:              *esHost,
 		EsPort:              *esPort,
 		PrometheusPort:      *prometheusPort,
@ -323,7 +299,7 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {
 		BlockingChannelIds:  *blockingChannelIds,
 		FilteringChannelIds: *filteringChannelIds,

-		GenesisHash:       "",
+		GenesisHash:       GENESIS_HASH,
 		ServerVersion:     HUB_PROTOCOL_VERSION,
 		ProtocolMin:       PROTOCOL_MIN,
 		ProtocolMax:       PROTOCOL_MAX,
@ -355,17 +331,11 @@ func ParseArgs(searchRequest *pb.SearchRequest) *Args {
 	}

 	if esPort, ok := environment["ELASTIC_PORT"]; ok {
-		args.EsPort, err = strconv.Atoi(esPort)
-		if err != nil {
-			log.Fatal(err)
-		}
+		args.EsPort = esPort
 	}

 	if prometheusPort, ok := environment["GOHUB_PROMETHEUS_PORT"]; ok {
-		args.PrometheusPort, err = strconv.Atoi(prometheusPort)
-		if err != nil {
-			log.Fatal(err)
-		}
+		args.PrometheusPort = prometheusPort
 	}

 	/*
--- a/server/federation.go
+++ b/server/federation.go
@ -3,19 +3,17 @@ package server
 import (
 	"bufio"
 	"context"
+	"log"
 	"math"
 	"net"
 	"os"
-	"strconv"
 	"strings"
 	"sync/atomic"
 	"time"

 	"github.com/lbryio/herald.go/internal/metrics"
 	pb "github.com/lbryio/herald.go/protobuf/go"
-	log "github.com/sirupsen/logrus"
 	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials/insecure"
 )

 // Peer holds relevant information about peers that we know about.
@ -88,7 +86,7 @@ func (s *Server) getAndSetExternalIp(ip, port string) error {
 // storing them as known peers. Returns a map of peerKey -> object
 func (s *Server) loadPeers() error {
 	peerFile := s.Args.PeerFile
-	port := strconv.Itoa(s.Args.Port)
+	port := s.Args.Port

 	// First we make sure our server has come up, so we can answer back to peers.
 	var failures = 0
@ -100,7 +98,7 @@ retry:
 	time.Sleep(time.Second * time.Duration(math.Pow(float64(failures), 2)))
 	conn, err := grpc.DialContext(ctx,
 		"0.0.0.0:"+port,
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithInsecure(),
 		grpc.WithBlock(),
 	)

@ -173,7 +171,7 @@ func (s *Server) subscribeToPeer(peer *Peer) error {

 	conn, err := grpc.DialContext(ctx,
 		peer.Address+":"+peer.Port,
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithInsecure(),
 		grpc.WithBlock(),
 	)
 	if err != nil {
@ -183,12 +181,12 @@ func (s *Server) subscribeToPeer(peer *Peer) error {

 	msg := &pb.ServerMessage{
 		Address: s.ExternalIP.String(),
-		Port:    strconv.Itoa(s.Args.Port),
+		Port:    s.Args.Port,
 	}

 	c := pb.NewHubClient(conn)

-	log.Printf("%s:%d subscribing to %+v\n", s.ExternalIP, s.Args.Port, peer)
+	log.Printf("%s:%s subscribing to %+v\n", s.ExternalIP, s.Args.Port, peer)
 	_, err = c.PeerSubscribe(ctx, msg)
 	if err != nil {
 		return err
@ -209,7 +207,7 @@ func (s *Server) helloPeer(peer *Peer) (*pb.HelloMessage, error) {

 	conn, err := grpc.DialContext(ctx,
 		peer.Address+":"+peer.Port,
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithInsecure(),
 		grpc.WithBlock(),
 	)
 	if err != nil {
@ -221,12 +219,12 @@ func (s *Server) helloPeer(peer *Peer) (*pb.HelloMessage, error) {
 	c := pb.NewHubClient(conn)

 	msg := &pb.HelloMessage{
-		Port:    strconv.Itoa(s.Args.Port),
+		Port:    s.Args.Port,
 		Host:    s.ExternalIP.String(),
 		Servers: []*pb.ServerMessage{},
 	}

-	log.Printf("%s:%d saying hello to %+v\n", s.ExternalIP, s.Args.Port, peer)
+	log.Printf("%s:%s saying hello to %+v\n", s.ExternalIP, s.Args.Port, peer)
 	res, err := c.Hello(ctx, msg)
 	if err != nil {
 		log.Println(err)
@ -279,7 +277,7 @@ func (s *Server) notifyPeer(peerToNotify *Peer, newPeer *Peer) error {

 	conn, err := grpc.DialContext(ctx,
 		peerToNotify.Address+":"+peerToNotify.Port,
-		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithInsecure(),
 		grpc.WithBlock(),
 	)
 	if err != nil {
@ -347,15 +345,15 @@ func (s *Server) addPeer(newPeer *Peer, ping bool, subscribe bool) error {
 		}
 	}

-	if strconv.Itoa(s.Args.Port) == newPeer.Port &&
+	if s.Args.Port == newPeer.Port &&
 		(localHosts[newPeer.Address] || newPeer.Address == s.ExternalIP.String()) {
-		log.Printf("%s:%d addPeer: Self peer, skipping...\n", s.ExternalIP, s.Args.Port)
+		log.Printf("%s:%s addPeer: Self peer, skipping...\n", s.ExternalIP, s.Args.Port)
 		return nil
 	}

 	k := peerKey(newPeer)

-	log.Printf("%s:%d adding peer %+v\n", s.ExternalIP, s.Args.Port, newPeer)
+	log.Printf("%s:%s adding peer %+v\n", s.ExternalIP, s.Args.Port, newPeer)
 	if oldServer, loaded := s.PeerServersLoadOrStore(newPeer); !loaded {
 		if ping {
 			_, err := s.helloPeer(newPeer)
@ -371,10 +369,6 @@ func (s *Server) addPeer(newPeer *Peer, ping bool, subscribe bool) error {
 		metrics.PeersKnown.Inc()
 		s.writePeers()
 		s.notifyPeerSubs(newPeer)
-		// This is weird because we're doing grpc and jsonrpc here.
-		// Do we still want to custom grpc?
-		log.Warn("Sending peer to NotifierChan")
-		s.NotifierChan <- peerNotification{newPeer.Address, newPeer.Port}

 		// Subscribe to all our peers for now
 		if subscribe {
@ -421,7 +415,7 @@ func (s *Server) makeHelloMessage() *pb.HelloMessage {
 	s.PeerServersMut.RUnlock()

 	return &pb.HelloMessage{
-		Port:    strconv.Itoa(s.Args.Port),
+		Port:    s.Args.Port,
 		Host:    s.ExternalIP.String(),
 		Servers: servers,
 	}
--- a/server/federation_test.go
+++ b/server/federation_test.go
@ -4,31 +4,23 @@ import (
 	"bufio"
 	"context"
 	"fmt"
+	"log"
 	"net"
 	"os"
-	"strconv"
 	"strings"
 	"testing"

 	"github.com/lbryio/herald.go/internal/metrics"
 	pb "github.com/lbryio/herald.go/protobuf/go"
-	"github.com/lbryio/herald.go/server"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
+	server "github.com/lbryio/herald.go/server"
 	dto "github.com/prometheus/client_model/go"
-	log "github.com/sirupsen/logrus"
 	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials/insecure"
 )

 // lineCountFile takes a fileName and counts the number of lines in it.
 func lineCountFile(fileName string) int {
 	f, err := os.Open(fileName)
-	defer func() {
-		err := f.Close()
-		if err != nil {
-			log.Warn(err)
-		}
-	}()
+	defer f.Close()
 	if err != nil {
 		log.Println(err)
 		return 0
@ -54,10 +46,8 @@ func removeFile(fileName string) {

 // TestAddPeer tests the ability to add peers
 func TestAddPeer(t *testing.T) {
-	// ctx := context.Background()
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	args := server.MakeDefaultTestArgs()
-	args.DisableStartNotifier = false

 	tests := []struct {
 		name string
@ -107,7 +97,6 @@ func TestAddPeer(t *testing.T) {
 			if got != tt.want {
 				t.Errorf("len(server.PeerServers) = %d, want %d\n", got, tt.want)
 			}
-			hubServer.Stop()
 		})
 	}

@ -115,10 +104,9 @@ func TestAddPeer(t *testing.T) {

 // TestPeerWriter tests that peers get written properly
 func TestPeerWriter(t *testing.T) {
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	args := server.MakeDefaultTestArgs()
 	args.DisableWritePeers = false
-	args.DisableStartNotifier = false

 	tests := []struct {
 		name string
@ -153,16 +141,17 @@ func TestPeerWriter(t *testing.T) {
 						Port:    "50051",
 					}
 				}
+				//log.Printf("Adding peer %+v\n", peer)
 				err := hubServer.AddPeerExported()(peer, false, false)
 				if err != nil {
 					log.Println(err)
 				}
 			}
+			//log.Println("Counting lines...")
 			got := lineCountFile(hubServer.Args.PeerFile)
 			if got != tt.want {
 				t.Errorf("lineCountFile(peers.txt) = %d, want %d", got, tt.want)
 			}
-			hubServer.Stop()
 		})
 	}

@ -171,13 +160,10 @@ func TestPeerWriter(t *testing.T) {

 // TestAddPeerEndpoint tests the ability to add peers
 func TestAddPeerEndpoint(t *testing.T) {
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	args := server.MakeDefaultTestArgs()
-	args.DisableStartNotifier = false
 	args2 := server.MakeDefaultTestArgs()
-	args2.DisableStartNotifier = false
-	args2.Port = 50052
-	args2.NotifierPort = 18081
+	args2.Port = "50052"

 	tests := []struct {
 		name          string
@ -207,8 +193,9 @@ func TestAddPeerEndpoint(t *testing.T) {
 			metrics.PeersKnown.Set(0)
 			go hubServer.Run()
 			go hubServer2.Run()
-			conn, err := grpc.Dial("localhost:"+strconv.Itoa(args.Port),
-				grpc.WithTransportCredentials(insecure.NewCredentials()),
+			//go hubServer.Run()
+			conn, err := grpc.Dial("localhost:"+args.Port,
+				grpc.WithInsecure(),
 				grpc.WithBlock(),
 			)
 			if err != nil {
@ -227,6 +214,8 @@ func TestAddPeerEndpoint(t *testing.T) {
 				log.Println(err)
 			}

+			hubServer.GrpcServer.GracefulStop()
+			hubServer2.GrpcServer.GracefulStop()
 			got1 := hubServer.GetNumPeersExported()()
 			got2 := hubServer2.GetNumPeersExported()()
 			if got1 != tt.wantServerOne {
@ -235,8 +224,6 @@ func TestAddPeerEndpoint(t *testing.T) {
 			if got2 != tt.wantServerTwo {
 				t.Errorf("len(hubServer2.PeerServers) = %d, want %d\n", got2, tt.wantServerTwo)
 			}
-			hubServer.Stop()
-			hubServer2.Stop()
 		})
 	}

@ -244,17 +231,12 @@ func TestAddPeerEndpoint(t *testing.T) {

 // TestAddPeerEndpoint2 tests the ability to add peers
 func TestAddPeerEndpoint2(t *testing.T) {
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	args := server.MakeDefaultTestArgs()
 	args2 := server.MakeDefaultTestArgs()
 	args3 := server.MakeDefaultTestArgs()
-	args2.Port = 50052
-	args3.Port = 50053
-	args.DisableStartNotifier = false
-	args2.DisableStartNotifier = false
-	args3.DisableStartNotifier = false
-	args2.NotifierPort = 18081
-	args3.NotifierPort = 18082
+	args2.Port = "50052"
+	args3.Port = "50053"

 	tests := []struct {
 		name            string
@ -279,8 +261,8 @@ func TestAddPeerEndpoint2(t *testing.T) {
 			go hubServer.Run()
 			go hubServer2.Run()
 			go hubServer3.Run()
-			conn, err := grpc.Dial("localhost:"+strconv.Itoa(args.Port),
-				grpc.WithTransportCredentials(insecure.NewCredentials()),
+			conn, err := grpc.Dial("localhost:"+args.Port,
+				grpc.WithInsecure(),
 				grpc.WithBlock(),
 			)
 			if err != nil {
@ -308,6 +290,9 @@ func TestAddPeerEndpoint2(t *testing.T) {
 				log.Println(err)
 			}

+			hubServer.GrpcServer.GracefulStop()
+			hubServer2.GrpcServer.GracefulStop()
+			hubServer3.GrpcServer.GracefulStop()
 			got1 := hubServer.GetNumPeersExported()()
 			got2 := hubServer2.GetNumPeersExported()()
 			got3 := hubServer3.GetNumPeersExported()()
@ -320,9 +305,6 @@ func TestAddPeerEndpoint2(t *testing.T) {
 			if got3 != tt.wantServerThree {
 				t.Errorf("len(hubServer3.PeerServers) = %d, want %d\n", got3, tt.wantServerThree)
 			}
-			hubServer.Stop()
-			hubServer2.Stop()
-			hubServer3.Stop()
 		})
 	}

@ -330,17 +312,12 @@ func TestAddPeerEndpoint2(t *testing.T) {

 // TestAddPeerEndpoint3 tests the ability to add peers
 func TestAddPeerEndpoint3(t *testing.T) {
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	args := server.MakeDefaultTestArgs()
 	args2 := server.MakeDefaultTestArgs()
 	args3 := server.MakeDefaultTestArgs()
-	args2.Port = 50052
-	args3.Port = 50053
-	args.DisableStartNotifier = false
-	args2.DisableStartNotifier = false
-	args3.DisableStartNotifier = false
-	args2.NotifierPort = 18081
-	args3.NotifierPort = 18082
+	args2.Port = "50052"
+	args3.Port = "50053"

 	tests := []struct {
 		name            string
@ -365,15 +342,15 @@ func TestAddPeerEndpoint3(t *testing.T) {
 			go hubServer.Run()
 			go hubServer2.Run()
 			go hubServer3.Run()
-			conn, err := grpc.Dial("localhost:"+strconv.Itoa(args.Port),
-				grpc.WithTransportCredentials(insecure.NewCredentials()),
+			conn, err := grpc.Dial("localhost:"+args.Port,
+				grpc.WithInsecure(),
 				grpc.WithBlock(),
 			)
 			if err != nil {
 				log.Fatalf("did not connect: %v", err)
 			}
 			conn2, err := grpc.Dial("localhost:50052",
-				grpc.WithTransportCredentials(insecure.NewCredentials()),
+				grpc.WithInsecure(),
 				grpc.WithBlock(),
 			)
 			if err != nil {
@ -402,9 +379,9 @@ func TestAddPeerEndpoint3(t *testing.T) {
 				log.Println(err)
 			}

-			hubServer.Stop()
-			hubServer2.Stop()
-			hubServer3.Stop()
+			hubServer.GrpcServer.GracefulStop()
+			hubServer2.GrpcServer.GracefulStop()
+			hubServer3.GrpcServer.GracefulStop()
 			got1 := hubServer.GetNumPeersExported()()
 			got2 := hubServer2.GetNumPeersExported()()
 			got3 := hubServer3.GetNumPeersExported()()
@ -424,11 +401,11 @@ func TestAddPeerEndpoint3(t *testing.T) {

 // TestAddPeer tests the ability to add peers
 func TestUDPServer(t *testing.T) {
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	args := server.MakeDefaultTestArgs()
-	args2 := server.MakeDefaultTestArgs()
-	args2.Port = 50052
 	args.DisableStartUDP = false
+	args2 := server.MakeDefaultTestArgs()
+	args2.Port = "50052"
 	args2.DisableStartUDP = false

 	tests := []struct {
@ -459,18 +436,18 @@ func TestUDPServer(t *testing.T) {
 				log.Println(err)
 			}

-			hubServer.Stop()
-			hubServer2.Stop()
+			hubServer.GrpcServer.GracefulStop()
+			hubServer2.GrpcServer.GracefulStop()

 			got1 := hubServer.ExternalIP.String()
 			if got1 != tt.want {
 				t.Errorf("hubServer.ExternalIP = %s, want %s\n", got1, tt.want)
-				t.Errorf("hubServer.Args.Port = %d\n", hubServer.Args.Port)
+				t.Errorf("hubServer.Args.Port = %s\n", hubServer.Args.Port)
 			}
 			got2 := hubServer2.ExternalIP.String()
 			if got2 != tt.want {
 				t.Errorf("hubServer2.ExternalIP = %s, want %s\n", got2, tt.want)
-				t.Errorf("hubServer2.Args.Port = %d\n", hubServer2.Args.Port)
+				t.Errorf("hubServer2.Args.Port = %s\n", hubServer2.Args.Port)
 			}
 		})
 	}
--- a/server/jsonrpc_blockchain.go
+++ b/server/jsonrpc_blockchain.go
@ -7,7 +7,6 @@ import (
 	"encoding/base64"
 	"encoding/binary"
 	"encoding/hex"
-	"encoding/json"
 	"errors"
 	"fmt"

@ -56,14 +55,6 @@ type BlockchainScripthashService struct {
 	session    *session
 }

-// BlockchainTransactionService methods handle "blockchain.transaction.*" RPCs
-type BlockchainTransactionService struct {
-	DB    *db.ReadOnlyDBColumnFamily
-	Chain *chaincfg.Params
-	// needed for broadcast TX
-	sessionMgr *sessionManager
-}
-
 const CHUNK_SIZE = 96
 const MAX_CHUNK_SIZE = 40960
 const HEADER_SIZE = wire.MaxBlockHeaderPayload
@ -171,42 +162,9 @@ type BlockHeadersReq struct {
 	B64         bool   `json:"b64"`
 }

-func (req *BlockHeadersReq) UnmarshalJSON(b []byte) error {
-	var params [4]interface{}
-	err := json.Unmarshal(b, &params)
-	if err != nil {
-		return err
-	}
-	switch params[0].(type) {
-	case float64:
-		req.StartHeight = uint32(params[0].(float64))
-	default:
-		return fmt.Errorf("expected numeric argument #0 (start_height)")
-	}
-	switch params[1].(type) {
-	case float64:
-		req.Count = uint32(params[1].(float64))
-	default:
-		return fmt.Errorf("expected numeric argument #1 (count)")
-	}
-	switch params[2].(type) {
-	case float64:
-		req.CpHeight = uint32(params[2].(float64))
-	default:
-		return fmt.Errorf("expected numeric argument #2 (cp_height)")
-	}
-	switch params[3].(type) {
-	case bool:
-		req.B64 = params[3].(bool)
-	default:
-		return fmt.Errorf("expected boolean argument #3 (b64)")
-	}
-	return nil
-}
-
 type BlockHeadersResp struct {
 	Base64 string `json:"base64,omitempty"`
-	Hex    string `json:"hex"`
+	Hex    string `json:"hex,omitempty"`
 	Count  uint32 `json:"count"`
 	Max    uint32 `json:"max"`
 	Branch string `json:"branch,omitempty"`
@ -251,21 +209,6 @@ type HeadersSubscribeReq struct {
 	Raw bool `json:"raw"`
 }

-func (req *HeadersSubscribeReq) UnmarshalJSON(b []byte) error {
-	var params [1]interface{}
-	err := json.Unmarshal(b, &params)
-	if err != nil {
-		return err
-	}
-	switch params[0].(type) {
-	case bool:
-		req.Raw = params[0].(bool)
-	default:
-		return fmt.Errorf("expected bool argument #0 (raw)")
-	}
-	return nil
-}
-
 type HeadersSubscribeResp struct {
 	BlockHeaderElectrum
 }
@ -393,23 +336,6 @@ func (s *BlockchainScripthashService) Get_balance(req *scripthashGetBalanceReq,
 type AddressGetHistoryReq struct {
 	Address string `json:"address"`
 }
-
-func (req *AddressGetHistoryReq) UnmarshalJSON(b []byte) error {
-	var params [1]interface{}
-	json.Unmarshal(b, &params)
-	err := json.Unmarshal(b, &params)
-	if err != nil {
-		return err
-	}
-	switch params[0].(type) {
-	case string:
-		req.Address = params[0].(string)
-	default:
-		return fmt.Errorf("expected string argument #0 (address)")
-	}
-	return nil
-}
-
 type TxInfo struct {
 	TxHash string `json:"tx_hash"`
 	Height uint32 `json:"height"`
@ -418,7 +344,10 @@ type TxInfoFee struct {
 	TxInfo
 	Fee uint64 `json:"fee"`
 }
-type AddressGetHistoryResp []TxInfoFee
+type AddressGetHistoryResp struct {
+	Confirmed   []TxInfo    `json:"confirmed"`
+	Unconfirmed []TxInfoFee `json:"unconfirmed"`
+}

 // 'blockchain.address.get_history'
 func (s *BlockchainAddressService) Get_history(req *AddressGetHistoryReq, resp **AddressGetHistoryResp) error {
@ -446,18 +375,11 @@ func (s *BlockchainAddressService) Get_history(req *AddressGetHistoryReq, resp *
 				Height: tx.Height,
 			})
 	}
-	unconfirmed := []TxInfoFee{} // TODO
-	result := make(AddressGetHistoryResp, len(confirmed)+len(unconfirmed))
-	i := 0
-	for _, tx := range confirmed {
-		result[i].TxInfo = tx
-		i += 1
+	result := &AddressGetHistoryResp{
+		Confirmed:   confirmed,
+		Unconfirmed: []TxInfoFee{}, // TODO
 	}
-	for _, tx := range unconfirmed {
-		result[i] = tx
-		i += 1
-	}
-	*resp = &result
+	*resp = result
 	return err
 }

@ -704,221 +626,3 @@ func (s *BlockchainScripthashService) Unsubscribe(req *ScripthashSubscribeReq, r
 	*resp = (*ScripthashSubscribeResp)(nil)
 	return nil
 }
-
-type TransactionBroadcastReq [1]string
-type TransactionBroadcastResp string
-
-// 'blockchain.transaction.broadcast'
-func (s *BlockchainTransactionService) Broadcast(req *TransactionBroadcastReq, resp **TransactionBroadcastResp) error {
-	if s.sessionMgr == nil {
-		return errors.New("no session manager, rpc not supported")
-	}
-	strTx := string((*req)[0])
-	rawTx, err := hex.DecodeString(strTx)
-	if err != nil {
-		return err
-	}
-	txhash, err := s.sessionMgr.broadcastTx(rawTx)
-	if err != nil {
-		return err
-	}
-	result := txhash.String()
-	*resp = (*TransactionBroadcastResp)(&result)
-	return nil
-}
-
-type TransactionGetReq string
-type TXFullDetail struct {
-	Height int      `json:"block_height"`
-	Pos    uint32   `json:"pos"`
-	Merkle []string `json:"merkle"`
-}
-type TXDetail struct {
-	Height int `json:"block_height"`
-}
-
-type TXGetItem struct {
-	TxHash string
-	TxRaw  string
-	Detail interface{} // TXFullDetail or TXDetail struct
-}
-type TransactionGetResp TXGetItem
-
-// 'blockchain.transaction.get'
-func (s *BlockchainTransactionService) Get(req *TransactionGetReq, resp **TransactionGetResp) error {
-	txids := [1]string{string(*req)}
-	request := TransactionGetBatchReq(txids[:])
-	var response *TransactionGetBatchResp
-	err := s.Get_batch(&request, &response)
-	if err != nil {
-		return err
-	}
-	if len(*response) < 1 {
-		return errors.New("tx not found")
-	}
-	switch (*response)[0].Detail.(type) {
-	case TXFullDetail:
-		break
-	case TXDetail:
-	default:
-		return errors.New("tx not confirmed")
-	}
-	*resp = (*TransactionGetResp)(&(*response)[0])
-	return err
-}
-
-type TransactionGetBatchReq []string
-
-func (req *TransactionGetBatchReq) UnmarshalJSON(b []byte) error {
-	var params []interface{}
-	json.Unmarshal(b, &params)
-	if len(params) > 100 {
-		return fmt.Errorf("too many tx hashes in request: %v", len(params))
-	}
-	for i, txhash := range params {
-		switch params[0].(type) {
-		case string:
-			*req = append(*req, txhash.(string))
-		default:
-			return fmt.Errorf("expected string argument #%d (tx_hash)", i)
-		}
-	}
-	return nil
-}
-
-type TransactionGetBatchResp []TXGetItem
-
-func (resp *TransactionGetBatchResp) MarshalJSON() ([]byte, error) {
-	// encode key/value pairs as variable length JSON object
-	var buf bytes.Buffer
-	enc := json.NewEncoder(&buf)
-	buf.WriteString("{")
-	for i, r := range *resp {
-		if i > 0 {
-			buf.WriteString(",")
-		}
-		txhash, raw, detail := r.TxHash, r.TxRaw, r.Detail
-		err := enc.Encode(txhash)
-		if err != nil {
-			return nil, err
-		}
-		buf.WriteString(":[")
-		err = enc.Encode(raw)
-		if err != nil {
-			return nil, err
-		}
-		buf.WriteString(",")
-		err = enc.Encode(detail)
-		if err != nil {
-			return nil, err
-		}
-		buf.WriteString("]")
-	}
-	buf.WriteString("}")
-	return buf.Bytes(), nil
-}
-
-// 'blockchain.transaction.get_batch'
-func (s *BlockchainTransactionService) Get_batch(req *TransactionGetBatchReq, resp **TransactionGetBatchResp) error {
-	if len(*req) > 100 {
-		return fmt.Errorf("too many tx hashes in request: %v", len(*req))
-	}
-	tx_hashes := make([]chainhash.Hash, 0, len(*req))
-	for i, txid := range *req {
-		tx_hashes = append(tx_hashes, chainhash.Hash{})
-		if err := chainhash.Decode(&tx_hashes[i], txid); err != nil {
-			return err
-		}
-	}
-	dbResult, err := s.DB.GetTxMerkle(tx_hashes)
-	if err != nil {
-		return err
-	}
-	result := make([]TXGetItem, 0, len(dbResult))
-	for _, r := range dbResult {
-		merkles := make([]string, len(r.Merkle))
-		for i, m := range r.Merkle {
-			merkles[i] = m.String()
-		}
-		detail := TXFullDetail{
-			Height: r.Height,
-			Pos:    r.Pos,
-			Merkle: merkles,
-		}
-		result = append(result, TXGetItem{r.TxHash.String(), hex.EncodeToString(r.RawTx), &detail})
-	}
-	*resp = (*TransactionGetBatchResp)(&result)
-	return err
-}
-
-type TransactionGetMerkleReq struct {
-	TxHash string `json:"tx_hash"`
-	Height uint32 `json:"height"`
-}
-type TransactionGetMerkleResp TXGetItem
-
-// 'blockchain.transaction.get_merkle'
-func (s *BlockchainTransactionService) Get_merkle(req *TransactionGetMerkleReq, resp **TransactionGetMerkleResp) error {
-	txids := [1]string{string(req.TxHash)}
-	request := TransactionGetBatchReq(txids[:])
-	var response *TransactionGetBatchResp
-	err := s.Get_batch(&request, &response)
-	if err != nil {
-		return err
-	}
-	if len(*response) < 1 {
-		return errors.New("tx not found")
-	}
-	switch (*response)[0].Detail.(type) {
-	case TXFullDetail:
-		break
-	case TXDetail:
-	default:
-		return errors.New("tx not confirmed")
-	}
-	*resp = (*TransactionGetMerkleResp)(&(*response)[0])
-	return err
-}
-
-type TransactionGetHeightReq string
-type TransactionGetHeightResp uint32
-
-// 'blockchain.transaction.get_height'
-func (s *BlockchainTransactionService) Get_height(req *TransactionGetHeightReq, resp **TransactionGetHeightResp) error {
-	txid := string(*(req))
-	txhash, err := chainhash.NewHashFromStr(txid)
-	if err != nil {
-		return err
-	}
-	height, err := s.DB.GetTxHeight(txhash)
-	*resp = (*TransactionGetHeightResp)(&height)
-	return err
-}
-
-type TransactionInfoReq string
-type TransactionInfoResp TXGetItem
-
-// 'blockchain.transaction.info'
-func (s *BlockchainTransactionService) Info(req *TransactionInfoReq, resp **TransactionInfoResp) error {
-	txids := [1]string{string(*req)}
-	request := TransactionGetBatchReq(txids[:])
-	var response *TransactionGetBatchResp
-	err := s.Get_batch(&request, &response)
-	if err != nil {
-		return err
-	}
-	if len(*response) < 1 {
-		return errors.New("tx not found")
-	}
-	switch (*response)[0].Detail.(type) {
-	case TXFullDetail:
-		break
-	case TXDetail:
-	default:
-		if (*response)[0].TxHash == "" {
-			return errors.New("no such mempool or blockchain transaction")
-		}
-	}
-	*resp = (*TransactionInfoResp)(&(*response)[0])
-	return err
-}
--- a/server/jsonrpc_blockchain_test.go
+++ b/server/jsonrpc_blockchain_test.go
@ -13,7 +13,6 @@ import (
 	"github.com/lbryio/lbcd/chaincfg"
 	"github.com/lbryio/lbcd/txscript"
 	"github.com/lbryio/lbcutil"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 )

 // Source: test_variety_of_transactions_and_longish_history (lbry-sdk/tests/integration/transactions)
@ -58,9 +57,8 @@ var regTestAddrs = [30]string{

 func TestServerGetHeight(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -89,9 +87,8 @@ func TestServerGetHeight(t *testing.T) {

 func TestGetChunk(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -133,9 +130,8 @@ func TestGetChunk(t *testing.T) {

 func TestGetHeader(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -163,9 +159,8 @@ func TestGetHeader(t *testing.T) {

 func TestHeaders(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -185,9 +180,6 @@ func TestHeaders(t *testing.T) {
 		}
 		var resp *BlockHeadersResp
 		err := s.Headers(&req, &resp)
-		if err != nil {
-			t.Errorf("Headers: %v", err)
-		}
 		marshalled, err := json.MarshalIndent(resp, "", "    ")
 		if err != nil {
 			t.Errorf("height: %v unmarshal err: %v", height, err)
@ -197,17 +189,15 @@ func TestHeaders(t *testing.T) {
 }

 func TestHeadersSubscribe(t *testing.T) {
-	args := MakeDefaultTestArgs()
-	grp := stop.NewDebug()
 	secondaryPath := "asdf"
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
 	}

-	sm := newSessionManager(nil, db, args, grp, &chaincfg.RegressionNetParams, nil)
+	sm := newSessionManager(db, &chaincfg.RegressionNetParams, DefaultMaxSessions, DefaultSessionTimeout)
 	sm.start()
 	defer sm.stop()

@ -219,13 +209,13 @@ func TestHeadersSubscribe(t *testing.T) {
 	// Set up logic to read a notification.
 	var received sync.WaitGroup
 	recv := func(client net.Conn) {
-		defer received.Done()
 		buf := make([]byte, 1024)
 		len, err := client.Read(buf)
 		if err != nil {
 			t.Errorf("read err: %v", err)
 		}
 		t.Logf("len: %v notification: %v", len, string(buf))
+		received.Done()
 	}
 	received.Add(2)
 	go recv(client1)
@ -276,10 +266,12 @@ func TestHeadersSubscribe(t *testing.T) {
 		t.Errorf("decode err: %v", err)
 	}
 	note1 := headerNotification{
-		HeightHash:          internal.HeightHash{Height: 500, BlockHeader: header500},
+		HeightHash:          internal.HeightHash{Height: 500},
+		blockHeader:         [112]byte{},
 		blockHeaderElectrum: nil,
 		blockHeaderStr:      "",
 	}
+	copy(note1.blockHeader[:], header500)
 	t.Logf("sending notification")
 	sm.doNotify(note1)

@ -289,9 +281,8 @@ func TestHeadersSubscribe(t *testing.T) {

 func TestGetBalance(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -319,9 +310,8 @@ func TestGetBalance(t *testing.T) {

 func TestGetHistory(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -349,9 +339,8 @@ func TestGetHistory(t *testing.T) {

 func TestListUnspent(t *testing.T) {
 	secondaryPath := "asdf"
-	grp := stop.NewDebug()
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
@ -378,17 +367,15 @@ func TestListUnspent(t *testing.T) {
 }

 func TestAddressSubscribe(t *testing.T) {
-	args := MakeDefaultTestArgs()
-	grp := stop.NewDebug()
 	secondaryPath := "asdf"
-	db, err := db.GetProdDB(regTestDBPath, secondaryPath, grp)
-	defer db.Shutdown()
+	db, toDefer, err := db.GetProdDB(regTestDBPath, secondaryPath)
+	defer toDefer()
 	if err != nil {
 		t.Error(err)
 		return
 	}

-	sm := newSessionManager(nil, db, args, grp, &chaincfg.RegressionNetParams, nil)
+	sm := newSessionManager(db, &chaincfg.RegressionNetParams, DefaultMaxSessions, DefaultSessionTimeout)
 	sm.start()
 	defer sm.stop()

--- a/server/jsonrpc_claimtrie.go
+++ b/server/jsonrpc_claimtrie.go
@ -1,19 +1,13 @@
 package server

 import (
-	"context"
-	"fmt"
-
 	"github.com/lbryio/herald.go/db"
-	"github.com/lbryio/herald.go/internal/metrics"
 	pb "github.com/lbryio/herald.go/protobuf/go"
-	"github.com/prometheus/client_golang/prometheus"
 	log "github.com/sirupsen/logrus"
 )

 type ClaimtrieService struct {
-	DB     *db.ReadOnlyDBColumnFamily
-	Server *Server
+	DB *db.ReadOnlyDBColumnFamily
 }

 type ResolveData struct {
@ -24,10 +18,6 @@ type Result struct {
 	Data string `json:"data"`
 }

-type GetClaimByIDData struct {
-	ClaimID string `json:"claim_id"`
-}
-
 // Resolve is the json rpc endpoint for 'blockchain.claimtrie.resolve'.
 func (t *ClaimtrieService) Resolve(args *ResolveData, result **pb.Outputs) error {
 	log.Println("Resolve")
@ -35,74 +25,3 @@ func (t *ClaimtrieService) Resolve(args *ResolveData, result **pb.Outputs) error
 	*result = res
 	return err
 }
-
-// Search is the json rpc endpoint for 'blockchain.claimtrie.search'.
-func (t *ClaimtrieService) Search(args *pb.SearchRequest, result **pb.Outputs) error {
-	log.Println("Search")
-	if t.Server == nil {
-		log.Warnln("Server is nil in Search")
-		*result = nil
-		return nil
-	}
-	ctx := context.Background()
-	res, err := t.Server.Search(ctx, args)
-	*result = res
-	return err
-}
-
-// GetClaimByID is the json rpc endpoint for 'blockchain.claimtrie.getclaimbyid'.
-func (t *ClaimtrieService) GetClaimByID(args *GetClaimByIDData, result **pb.Outputs) error {
-	log.Println("GetClaimByID")
-	if len(args.ClaimID) != 40 {
-		*result = nil
-		return fmt.Errorf("len(claim_id) != 40")
-	}
-
-	rows, extras, err := t.DB.GetClaimByID(args.ClaimID)
-	if err != nil {
-		*result = nil
-		return err
-	}
-
-	metrics.RequestsCount.With(prometheus.Labels{"method": "blockchain.claimtrie.getclaimbyid"}).Inc()
-
-	// FIXME: this has txos and extras and so does GetClaimById?
-	allTxos := make([]*pb.Output, 0)
-	allExtraTxos := make([]*pb.Output, 0)
-
-	for _, row := range rows {
-		txos, extraTxos, err := row.ToOutputs()
-		if err != nil {
-			*result = nil
-			return err
-		}
-		// TODO: there may be a more efficient way to do this.
-		allTxos = append(allTxos, txos...)
-		allExtraTxos = append(allExtraTxos, extraTxos...)
-	}
-
-	for _, extra := range extras {
-		txos, extraTxos, err := extra.ToOutputs()
-		if err != nil {
-			*result = nil
-			return err
-		}
-		// TODO: there may be a more efficient way to do this.
-		allTxos = append(allTxos, txos...)
-		allExtraTxos = append(allExtraTxos, extraTxos...)
-	}
-
-	res := &pb.Outputs{
-		Txos:         allTxos,
-		ExtraTxos:    allExtraTxos,
-		Total:        uint32(len(allTxos) + len(allExtraTxos)),
-		Offset:       0,   //TODO
-		Blocked:      nil, //TODO
-		BlockedTotal: 0,   //TODO
-	}
-
-	log.Warn(res)
-
-	*result = res
-	return nil
-}
--- a/server/jsonrpc_federation.go
+++ b/server/jsonrpc_federation.go
@ -1,39 +0,0 @@
-package server
-
-import (
-	"errors"
-
-	log "github.com/sirupsen/logrus"
-)
-
-type PeersService struct {
-	Server *Server
-	// needed for subscribe/unsubscribe
-	sessionMgr *sessionManager
-	session    *session
-}
-
-type PeersSubscribeReq struct {
-	Ip      string   `json:"ip"`
-	Host    string   `json:"host"`
-	Details []string `json:"details"`
-}
-
-type PeersSubscribeResp string
-
-// Features is the json rpc endpoint for 'server.peers.subcribe'.
-func (t *PeersService) Subscribe(req *PeersSubscribeReq, res **PeersSubscribeResp) error {
-	log.Println("PeersSubscribe")
-	// var port = "50001"
-
-	// FIXME: Get the actual port from the request details
-
-	if t.sessionMgr == nil || t.session == nil {
-		*res = nil
-		return errors.New("no session, rpc not supported")
-	}
-	t.sessionMgr.peersSubscribe(t.session, true /*subscribe*/)
-
-	*res = nil
-	return nil
-}
--- a/server/jsonrpc_server.go
+++ b/server/jsonrpc_server.go
@ -4,10 +4,6 @@ import (
 	log "github.com/sirupsen/logrus"
 )

-type ServerService struct {
-	Args *Args
-}
-
 type ServerFeatureService struct {
 	Args *Args
 }
@ -30,7 +26,7 @@ type ServerFeaturesRes struct {
 }

 // Features is the json rpc endpoint for 'server.features'.
-func (t *ServerService) Features(req *ServerFeaturesReq, res **ServerFeaturesRes) error {
+func (t *ServerFeatureService) Features(req *ServerFeaturesReq, res **ServerFeaturesRes) error {
 	log.Println("Features")

 	features := &ServerFeaturesRes{
@ -39,7 +35,7 @@ func (t *ServerService) Features(req *ServerFeaturesReq, res **ServerFeaturesRes
 		ServerVersion:     HUB_PROTOCOL_VERSION,
 		ProtocolMin:       PROTOCOL_MIN,
 		ProtocolMax:       PROTOCOL_MAX,
-		GenesisHash:       t.Args.GenesisHash,
+		GenesisHash:       GENESIS_HASH,
 		Description:       t.Args.ServerDescription,
 		PaymentAddress:    t.Args.PaymentAddress,
 		DonationAddress:   t.Args.DonationAddress,
@ -61,7 +57,7 @@ type ServerBannerReq struct{}
 type ServerBannerRes string

 // Banner is the json rpc endpoint for 'server.banner'.
-func (t *ServerService) Banner(req *ServerBannerReq, res **ServerBannerRes) error {
+func (t *ServerBannerService) Banner(req *ServerBannerReq, res **ServerBannerRes) error {
 	log.Println("Banner")

 	*res = (*ServerBannerRes)(t.Args.Banner)
@ -73,16 +69,17 @@ type ServerVersionService struct {
 	Args *Args
 }

-type ServerVersionReq [2]string // [client_name, client_version]
+type ServerVersionReq struct{}

-type ServerVersionRes [2]string // [version, protocol_version]
+type ServerVersionRes string
+
+// Banner is the json rpc endpoint for 'server.version'.
+// FIXME: This should return a struct with the version and the protocol version.
+// <<-- that comment was written by github, scary shit because it's true
+func (t *ServerVersionService) Version(req *ServerVersionReq, res **ServerVersionRes) error {
+	log.Println("Version")
+
+	*res = (*ServerVersionRes)(&t.Args.ServerVersion)

-// Version is the json rpc endpoint for 'server.version'.
-func (t *ServerService) Version(req *ServerVersionReq, res **ServerVersionRes) error {
-	// FIXME: We may need to do the computation of a negotiated version here.
-	// Also return an error if client is not supported?
-	result := [2]string{t.Args.ServerVersion, t.Args.ServerVersion}
-	*res = (*ServerVersionRes)(&result)
-	log.Printf("Version(%v) -> %v", *req, **res)
 	return nil
 }
--- a/server/jsonrpc_service.go
+++ b/server/jsonrpc_service.go
@ -52,23 +52,24 @@ func (cr *gorillaRpcCodecRequest) Method() (string, error) {

 // StartJsonRPC starts the json rpc server and registers the endpoints.
 func (s *Server) StartJsonRPC() error {
+	s.sessionManager.start()
+	defer s.sessionManager.stop()
+
 	// Set up the pure JSONRPC server with persistent connections/sessions.
 	if s.Args.JSONRPCPort != 0 {
-		port := ":" + strconv.Itoa(s.Args.JSONRPCPort)
-		laddr, err := net.ResolveTCPAddr("tcp4", port)
+		port := ":" + strconv.FormatUint(uint64(s.Args.JSONRPCPort), 10)
+		laddr, err := net.ResolveTCPAddr("tcp", port)
 		if err != nil {
 			log.Errorf("ResoveIPAddr: %v\n", err)
 			goto fail1
 		}
-		listener, err := net.ListenTCP("tcp4", laddr)
+		listener, err := net.ListenTCP("tcp", laddr)
 		if err != nil {
 			log.Errorf("ListenTCP: %v\n", err)
 			goto fail1
 		}
 		log.Infof("JSONRPC server listening on %s", listener.Addr().String())
-		s.sessionManager.start()
 		acceptConnections := func(listener net.Listener) {
-			defer s.sessionManager.stop()
 			for {
 				conn, err := listener.Accept()
 				if err != nil {
@ -77,7 +78,6 @@ func (s *Server) StartJsonRPC() error {
 				}
 				log.Infof("Accepted: %v", conn.RemoteAddr())
 				s.sessionManager.addSession(conn)
-
 			}
 		}
 		go acceptConnections(netutil.LimitListener(listener, s.sessionManager.sessionsMax))
@ -91,52 +91,53 @@ fail1:
 		s1.RegisterCodec(&gorillaRpcCodec{gorilla_json.NewCodec()}, "application/json")

 		// Register "blockchain.claimtrie.*"" handlers.
-		claimtrieSvc := &ClaimtrieService{s.DB, s}
+		claimtrieSvc := &ClaimtrieService{s.DB}
 		err := s1.RegisterTCPService(claimtrieSvc, "blockchain_claimtrie")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
 		}

-		// Register "blockchain.{block,address,scripthash,transaction}.*" handlers.
+		// Register other "blockchain.{block,address,scripthash}.*" handlers.
 		blockchainSvc := &BlockchainBlockService{s.DB, s.Chain}
 		err = s1.RegisterTCPService(blockchainSvc, "blockchain_block")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
 		}
-		err = s1.RegisterTCPService(&BlockchainHeadersService{s.DB, s.Chain, s.sessionManager, nil}, "blockchain_headers")
+		err = s1.RegisterTCPService(&BlockchainHeadersService{s.DB, s.Chain, nil, nil}, "blockchain_headers")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
 		}
-		err = s1.RegisterTCPService(&BlockchainAddressService{s.DB, s.Chain, s.sessionManager, nil}, "blockchain_address")
+		err = s1.RegisterTCPService(&BlockchainAddressService{s.DB, s.Chain, nil, nil}, "blockchain_address")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
 		}
-		err = s1.RegisterTCPService(&BlockchainScripthashService{s.DB, s.Chain, s.sessionManager, nil}, "blockchain_scripthash")
-		if err != nil {
-			log.Errorf("RegisterTCPService: %v\n", err)
-			goto fail2
-		}
-		err = s1.RegisterTCPService(&BlockchainTransactionService{s.DB, s.Chain, s.sessionManager}, "blockchain_transaction")
+		err = s1.RegisterTCPService(&BlockchainScripthashService{s.DB, s.Chain, nil, nil}, "blockchain_scripthash")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
 		}

 		// Register "server.{features,banner,version}" handlers.
-		serverSvc := &ServerService{s.Args}
-		err = s1.RegisterTCPService(serverSvc, "server")
+		serverFeatureSvc := &ServerFeatureService{s.Args}
+		err = s1.RegisterTCPService(serverFeatureSvc, "server_features")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
 		}

-		// Register "server.peers" handlers.
-		peersSvc := &PeersService{Server: s}
-		err = s1.RegisterTCPService(peersSvc, "server_peers")
+		serverBannerSvc := &ServerBannerService{s.Args}
+		err = s1.RegisterTCPService(serverBannerSvc, "server_banner")
+		if err != nil {
+			log.Errorf("RegisterTCPService: %v\n", err)
+			goto fail2
+		}
+
+		serverVersionSvc := &ServerVersionService{s.Args}
+		err = s1.RegisterTCPService(serverVersionSvc, "server_version")
 		if err != nil {
 			log.Errorf("RegisterTCPService: %v\n", err)
 			goto fail2
--- a/server/notifier.go
+++ b/server/notifier.go
@ -2,7 +2,6 @@ package server

 import (
 	"encoding/binary"
-	"fmt"
 	"net"

 	"github.com/lbryio/herald.go/internal"
@ -54,16 +53,10 @@ func (s *Server) DoNotify(heightHash *internal.HeightHash) error {
 // RunNotifier Runs the notfying action forever
 func (s *Server) RunNotifier() error {
 	for notification := range s.NotifierChan {
-		switch note := notification.(type) {
+		switch notification.(type) {
 		case internal.HeightHash:
-			heightHash := note
+			heightHash, _ := notification.(internal.HeightHash)
 			s.DoNotify(&heightHash)
-		// Do we need this?
-		// case peerNotification:
-		// 	peer, _ := notification.(peerNotification)
-		// 	s.notifyPeerSubs(&Peer{Address: peer.address, Port: peer.port})
-		default:
-			logrus.Warn("unknown notification type")
 		}
 		s.sessionManager.doNotify(notification)
 	}
@ -72,8 +65,7 @@ func (s *Server) RunNotifier() error {

 // NotifierServer implements the TCP protocol for height/blockheader notifications
 func (s *Server) NotifierServer() error {
-	s.Grp.Add(1)
-	address := ":" + fmt.Sprintf("%d", s.Args.NotifierPort)
+	address := ":" + s.Args.NotifierPort
 	addr, err := net.ResolveTCPAddr("tcp", address)
 	if err != nil {
 		return err
@ -85,27 +77,11 @@ func (s *Server) NotifierServer() error {
 	}

 	defer listen.Close()
-	rdyCh := make(chan bool)

 	for {
-		var conn net.Conn
-		var err error

 		logrus.Info("Waiting for connection")
-
-		go func() {
-			conn, err = listen.Accept()
-			rdyCh <- true
-		}()
-
-		select {
-		case <-s.Grp.Ch():
-			s.Grp.Done()
-			return nil
-		case <-rdyCh:
-			logrus.Info("Connection accepted")
-		}
-
+		conn, err := listen.Accept()
 		if err != nil {
 			logrus.Warn(err)
 			continue
--- a/server/notifier_test.go
+++ b/server/notifier_test.go
@ -1,6 +1,7 @@
 package server_test

 import (
+	"context"
 	"encoding/hex"
 	"fmt"
 	"net"
@ -9,32 +10,11 @@ import (

 	"github.com/lbryio/herald.go/internal"
 	"github.com/lbryio/herald.go/server"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	"github.com/sirupsen/logrus"
 )

 const defaultBufferSize = 1024

-func subReady(s *server.Server) error {
-	sleepTime := time.Millisecond * 100
-	for {
-		if sleepTime > time.Second {
-			return fmt.Errorf("timeout")
-		}
-		s.HeightSubsMut.RLock()
-		if len(s.HeightSubs) > 0 {
-			s.HeightSubsMut.RUnlock()
-			return nil
-		}
-		s.HeightSubsMut.RUnlock()
-
-		logrus.Warn("waiting for subscriber")
-		time.Sleep(sleepTime)
-		sleepTime = sleepTime * 2
-
-	}
-}
-
 func tcpConnReady(addr string) (net.Conn, error) {
 	sleepTime := time.Millisecond * 100
 	for {
@ -68,13 +48,13 @@ func tcpRead(conn net.Conn) ([]byte, error) {

 func TestNotifierServer(t *testing.T) {
 	args := server.MakeDefaultTestArgs()
-	ctx := stop.NewDebug()
+	ctx := context.Background()
 	hub := server.MakeHubServer(ctx, args)

 	go hub.NotifierServer()
 	go hub.RunNotifier()

-	addr := fmt.Sprintf(":%d", args.NotifierPort)
+	addr := fmt.Sprintf(":%s", args.NotifierPort)
 	logrus.Info(addr)
 	conn, err := tcpConnReady(addr)
 	if err != nil {
@ -96,10 +76,7 @@ func TestNotifierServer(t *testing.T) {

 	// Hacky but needed because if the reader isn't ready
 	// before the writer sends it won't get the data
-	err = subReady(hub)
-	if err != nil {
-		t.Fatal(err)
-	}
+	time.Sleep(time.Second)

 	hash, _ := hex.DecodeString("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA")
 	logrus.Warn("sending hash")
--- a/server/search_test.go
+++ b/server/search_test.go
@ -11,7 +11,6 @@ import (

 	pb "github.com/lbryio/herald.go/protobuf/go"
 	server "github.com/lbryio/herald.go/server"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	"github.com/olivere/elastic/v7"
 )

@ -56,14 +55,13 @@ func TestSearch(t *testing.T) {
 		w.Write([]byte(resp))
 	}

-	ctx := context.Background()
-	stopGroup := stop.NewDebug()
+	context := context.Background()
 	args := server.MakeDefaultTestArgs()
-	hubServer := server.MakeHubServer(stopGroup, args)
+	hubServer := server.MakeHubServer(context, args)
 	req := &pb.SearchRequest{
 		Text: "asdf",
 	}
-	out, err := hubServer.Search(ctx, req)
+	out, err := hubServer.Search(context, req)
 	if err != nil {
 		log.Println(err)
 	}
--- a/server/server.go
+++ b/server/server.go
@ -8,12 +8,11 @@ import (
 	"fmt"
 	"hash"
 	"io/ioutil"
-	golog "log"
+	"log"
 	"net"
 	"net/http"
 	"os"
 	"regexp"
-	"strconv"
 	"sync"
 	"time"

@ -23,12 +22,10 @@ import (
 	"github.com/lbryio/herald.go/meta"
 	pb "github.com/lbryio/herald.go/protobuf/go"
 	"github.com/lbryio/lbcd/chaincfg"
-	lbcd "github.com/lbryio/lbcd/rpcclient"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	"github.com/olivere/elastic/v7"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
-	log "github.com/sirupsen/logrus"
+	logrus "github.com/sirupsen/logrus"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
 )
@ -40,7 +37,6 @@ type Server struct {
 	WeirdCharsRe     *regexp.Regexp
 	DB               *db.ReadOnlyDBColumnFamily
 	Chain            *chaincfg.Params
-	DaemonClient     *lbcd.Client
 	EsClient         *elastic.Client
 	QueryCache       *ttlcache.Cache
 	S256             *hash.Hash
@ -57,8 +53,6 @@ type Server struct {
 	HeightSubs       map[net.Addr]net.Conn
 	HeightSubsMut    sync.RWMutex
 	NotifierChan     chan interface{}
-	Grp              *stop.Group
-	notiferListener  *net.TCPListener
 	sessionManager   *sessionManager
 	pb.UnimplementedHubServer
 }
@ -140,8 +134,7 @@ func (s *Server) PeerServersLoadOrStore(peer *Peer) (actual *Peer, loaded bool)

 // Run "main" function for starting the server. This blocks.
 func (s *Server) Run() {
-	address := ":" + strconv.Itoa(s.Args.Port)
-	l, err := net.Listen("tcp", address)
+	l, err := net.Listen("tcp", ":"+s.Args.Port)
 	if err != nil {
 		log.Fatalf("failed to listen: %v", err)
 	}
@ -156,50 +149,31 @@ func (s *Server) Run() {
 	}
 }

-func (s *Server) Stop() {
-	log.Println("Shutting down server...")
-
-	if s.EsClient != nil {
-		log.Println("Stopping es client...")
-		s.EsClient.Stop()
-	}
-	if s.GrpcServer != nil {
-		log.Println("Stopping grpc server...")
-		s.GrpcServer.GracefulStop()
-	}
-	log.Println("Stopping other server threads...")
-	s.Grp.StopAndWait()
-	if s.DB != nil {
-		log.Println("Stopping database connection...")
-		s.DB.Shutdown()
-	}
-
-	log.Println("Returning from Stop...")
-}
-
-func LoadDatabase(args *Args, grp *stop.Group) (*db.ReadOnlyDBColumnFamily, error) {
-	tmpName, err := os.MkdirTemp("", "go-lbry-hub")
+func LoadDatabase(args *Args) (*db.ReadOnlyDBColumnFamily, error) {
+	tmpName, err := ioutil.TempDir("", "go-lbry-hub")
 	if err != nil {
-		log.Info(err)
+		logrus.Info(err)
 		log.Fatal(err)
 	}
-	log.Info("tmpName", tmpName)
+	logrus.Info("tmpName", tmpName)
 	if err != nil {
-		log.Info(err)
+		logrus.Info(err)
 	}
-	myDB, err := db.GetProdDB(args.DBPath, tmpName, grp)
+	myDB, _, err := db.GetProdDB(args.DBPath, tmpName)
+	// dbShutdown = func() {
+	// 	db.Shutdown(myDB)
+	// }
 	if err != nil {
 		// Can't load the db, fail loudly
-		log.Info(err)
+		logrus.Info(err)
 		log.Fatalln(err)
 	}

 	if myDB.LastState != nil {
-		log.Infof("DB version: %v", myDB.LastState.DBVersion)
-		log.Infof("height: %v", myDB.LastState.Height)
-		log.Infof("genesis: %v", myDB.LastState.Genesis.String())
-		log.Infof("tip: %v", myDB.LastState.Tip.String())
-		log.Infof("tx count: %v", myDB.LastState.TxCount)
+		logrus.Infof("DB version: %v", myDB.LastState.DBVersion)
+		logrus.Infof("height: %v", myDB.LastState.Height)
+		logrus.Infof("tip: %v", myDB.LastState.Tip.String())
+		logrus.Infof("tx count: %v", myDB.LastState.TxCount)
 	}

 	blockingChannelHashes := make([][]byte, 0, 10)
@ -210,7 +184,7 @@ func LoadDatabase(args *Args, grp *stop.Group) (*db.ReadOnlyDBColumnFamily, erro
 	for _, id := range args.BlockingChannelIds {
 		hash, err := hex.DecodeString(id)
 		if err != nil {
-			log.Warn("Invalid channel id: ", id)
+			logrus.Warn("Invalid channel id: ", id)
 			continue
 		}
 		blockingChannelHashes = append(blockingChannelHashes, hash)
@ -220,7 +194,7 @@ func LoadDatabase(args *Args, grp *stop.Group) (*db.ReadOnlyDBColumnFamily, erro
 	for _, id := range args.FilteringChannelIds {
 		hash, err := hex.DecodeString(id)
 		if err != nil {
-			log.Warn("Invalid channel id: ", id)
+			logrus.Warn("Invalid channel id: ", id)
 			continue
 		}
 		filteringChannelHashes = append(filteringChannelHashes, hash)
@ -231,10 +205,10 @@ func LoadDatabase(args *Args, grp *stop.Group) (*db.ReadOnlyDBColumnFamily, erro
 	myDB.FilteringChannelHashes = filteringChannelHashes

 	if len(filteringIds) > 0 {
-		log.Infof("filtering claims reposted by channels: %+s", filteringIds)
+		logrus.Infof("filtering claims reposted by channels: %+s", filteringIds)
 	}
 	if len(blockingIds) > 0 {
-		log.Infof("blocking claims reposted by channels: %+s", blockingIds)
+		logrus.Infof("blocking claims reposted by channels: %+s", blockingIds)
 	}

 	return myDB, nil
@ -243,7 +217,7 @@ func LoadDatabase(args *Args, grp *stop.Group) (*db.ReadOnlyDBColumnFamily, erro
 // MakeHubServer takes the arguments given to a hub when it's started and
 // initializes everything. It loads information about previously known peers,
 // creates needed internal data structures, and initializes goroutines.
-func MakeHubServer(grp *stop.Group, args *Args) *Server {
+func MakeHubServer(ctx context.Context, args *Args) *Server {
 	grpcServer := grpc.NewServer(grpc.NumStreamWorkers(0))

 	multiSpaceRe, err := regexp.Compile(`\s{2,}`)
@ -256,34 +230,9 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 		log.Fatal(err)
 	}

-	var lbcdClient *lbcd.Client = nil
-	if args.DaemonURL != nil && args.DaemonURL.Host != "" {
-		var rpcCertificate []byte
-		if args.DaemonCAPath != "" {
-			rpcCertificate, err = ioutil.ReadFile(args.DaemonCAPath)
-			if err != nil {
-				log.Fatalf("failed to read SSL certificate from path: %v", args.DaemonCAPath)
-			}
-		}
-		log.Warnf("connecting to lbcd daemon at %v...", args.DaemonURL.Host)
-		password, _ := args.DaemonURL.User.Password()
-		cfg := &lbcd.ConnConfig{
-			Host:         args.DaemonURL.Host,
-			User:         args.DaemonURL.User.Username(),
-			Pass:         password,
-			HTTPPostMode: true,
-			DisableTLS:   rpcCertificate == nil,
-			Certificates: rpcCertificate,
-		}
-		lbcdClient, err = lbcd.New(cfg, nil)
-		if err != nil {
-			log.Fatalf("lbcd daemon connection failed: %v", err)
-		}
-	}
-
-	var esClient *elastic.Client = nil
+	var client *elastic.Client = nil
 	if !args.DisableEs {
-		esUrl := args.EsHost + ":" + fmt.Sprintf("%d", args.EsPort)
+		esUrl := args.EsHost + ":" + args.EsPort
 		opts := []elastic.ClientOptionFunc{
 			elastic.SetSniff(true),
 			elastic.SetSnifferTimeoutStartup(time.Second * 60),
@ -291,9 +240,9 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 			elastic.SetURL(esUrl),
 		}
 		if args.Debug {
-			opts = append(opts, elastic.SetTraceLog(golog.New(os.Stderr, "[[ELASTIC]]", 0)))
+			opts = append(opts, elastic.SetTraceLog(log.New(os.Stderr, "[[ELASTIC]]", 0)))
 		}
-		esClient, err = elastic.NewClient(opts...)
+		client, err = elastic.NewClient(opts...)
 		if err != nil {
 			log.Fatal(err)
 		}
@ -317,18 +266,18 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {

 	//TODO: is this the right place to load the db?
 	var myDB *db.ReadOnlyDBColumnFamily
+	// var dbShutdown = func() {}
 	if !args.DisableResolve {
-		myDB, err = LoadDatabase(args, grp)
+		myDB, err = LoadDatabase(args)
 		if err != nil {
-			log.Warning(err)
+			logrus.Warning(err)
 		}
 	}

-	// Determine which chain to use based on db and cli values
 	dbChain := (*chaincfg.Params)(nil)
-	if myDB != nil && myDB.LastState != nil {
+	if myDB != nil && myDB.LastState != nil && myDB.LastState.Genesis != nil {
 		// The chain params can be inferred from DBStateValue.
-		switch myDB.LastState.Genesis.Hash {
+		switch *myDB.LastState.Genesis {
 		case *chaincfg.MainNetParams.GenesisHash:
 			dbChain = &chaincfg.MainNetParams
 		case *chaincfg.TestNet3Params.GenesisHash:
@ -351,7 +300,7 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 	chain := chaincfg.MainNetParams
 	if dbChain != nil && cliChain != nil {
 		if dbChain != cliChain {
-			log.Warnf("network: %v (from db) conflicts with %v (from cli)", dbChain.Name, cliChain.Name)
+			logrus.Warnf("network: %v (from db) conflicts with %v (from cli)", dbChain.Name, cliChain.Name)
 		}
 		chain = *dbChain
 	} else if dbChain != nil {
@ -359,11 +308,7 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 	} else if cliChain != nil {
 		chain = *cliChain
 	}
-	log.Infof("network: %v", chain.Name)
-
-	args.GenesisHash = chain.GenesisHash.String()
-
-	sessionGrp := stop.New(grp)
+	logrus.Infof("network: %v", chain.Name)

 	s := &Server{
 		GrpcServer:       grpcServer,
@ -372,8 +317,7 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 		WeirdCharsRe:     weirdCharsRe,
 		DB:               myDB,
 		Chain:            &chain,
-		DaemonClient:     lbcdClient,
-		EsClient:         esClient,
+		EsClient:         client,
 		QueryCache:       cache,
 		S256:             &s256,
 		LastRefreshCheck: time.Now(),
@ -388,39 +332,28 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 		ExternalIP:       net.IPv4(127, 0, 0, 1),
 		HeightSubs:       make(map[net.Addr]net.Conn),
 		HeightSubsMut:    sync.RWMutex{},
-		NotifierChan:     make(chan interface{}, 1),
-		Grp:              grp,
-		sessionManager:   nil,
+		NotifierChan:     make(chan interface{}),
+		sessionManager:   newSessionManager(myDB, &chain, args.MaxSessions, args.SessionTimeout),
 	}
-	// FIXME: HACK
-	s.sessionManager = newSessionManager(s, myDB, args, sessionGrp, &chain, lbcdClient)

 	// Start up our background services
 	if !args.DisableResolve && !args.DisableRocksDBRefresh {
-		log.Info("Running detect changes")
+		logrus.Info("Running detect changes")
 		myDB.RunDetectChanges(s.NotifierChan)
 	}
 	if !args.DisableBlockingAndFiltering {
 		myDB.RunGetBlocksAndFilters()
 	}
 	if !args.DisableStartPrometheus {
-		go s.prometheusEndpoint(fmt.Sprintf("%d", s.Args.PrometheusPort), "metrics")
+		go s.prometheusEndpoint(s.Args.PrometheusPort, "metrics")
 	}
 	if !args.DisableStartUDP {
 		go func() {
-			err := s.UDPServer(s.Args.Port)
+			err := s.UDPServer()
 			if err != nil {
-				log.Errorf("UDP Server (%d) failed! %v", s.Args.Port, err)
+				log.Println("UDP Server failed!", err)
 			}
 		}()
-		if s.Args.JSONRPCPort != 0 {
-			go func() {
-				err := s.UDPServer(s.Args.JSONRPCPort)
-				if err != nil {
-					log.Errorf("UDP Server (%d) failed! %v", s.Args.JSONRPCPort, err)
-				}
-			}()
-		}
 	}
 	if !args.DisableStartNotifier {
 		go func() {
@ -461,7 +394,7 @@ func MakeHubServer(grp *stop.Group, args *Args) *Server {
 // for this hub to allow for metric tracking.
 func (s *Server) prometheusEndpoint(port string, endpoint string) {
 	http.Handle("/"+endpoint, promhttp.Handler())
-	log.Printf("listening on :%s /%s\n", port, endpoint)
+	log.Println(fmt.Sprintf("listening on :%s /%s", port, endpoint))
 	err := http.ListenAndServe(":"+port, nil)
 	log.Fatalln("Shouldn't happen??!?!", err)
 }
@ -619,7 +552,7 @@ func InternalResolve(urls []string, DB *db.ReadOnlyDBColumnFamily) (*pb.Outputs,
 		BlockedTotal: 0,   //TODO
 	}

-	log.Warn(res)
+	logrus.Warn(res)

 	return res, nil
 }
--- a/server/server_test_pkg.go
+++ b/server/server_test_pkg.go
@ -1,11 +1,5 @@
 package server

-import (
-	"github.com/lbryio/herald.go/db"
-	"github.com/lbryio/lbcd/chaincfg"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
-)
-
 func (s *Server) AddPeerExported() func(*Peer, bool, bool) error {
 	return s.addPeer
 }
@ -13,7 +7,3 @@ func (s *Server) AddPeerExported() func(*Peer, bool, bool) error {
 func (s *Server) GetNumPeersExported() func() int64 {
 	return s.getNumPeers
 }
-
-func NewSessionManagerExported(server *Server, db *db.ReadOnlyDBColumnFamily, args *Args, grp *stop.Group, chain *chaincfg.Params) *sessionManager {
-	return newSessionManager(server, db, args, grp, chain, nil)
-}
--- a/server/session.go
+++ b/server/session.go
@ -1,9 +1,7 @@
 package server

 import (
-	"bytes"
 	"encoding/hex"
-	"encoding/json"
 	"fmt"
 	"net"
 	"net/rpc"
@ -16,15 +14,12 @@ import (
 	"github.com/lbryio/herald.go/db"
 	"github.com/lbryio/herald.go/internal"
 	"github.com/lbryio/lbcd/chaincfg"
-	"github.com/lbryio/lbcd/chaincfg/chainhash"
-	lbcd "github.com/lbryio/lbcd/rpcclient"
-	"github.com/lbryio/lbcd/wire"
-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	log "github.com/sirupsen/logrus"
 )

 type headerNotification struct {
 	internal.HeightHash
+	blockHeader         [HEADER_SIZE]byte
 	blockHeaderElectrum *BlockHeaderElectrum
 	blockHeaderStr      string
 }
@ -35,11 +30,6 @@ type hashXNotification struct {
 	statusStr string
 }

-type peerNotification struct {
-	address string
-	port    string
-}
-
 type session struct {
 	id   uintptr
 	addr net.Addr
@ -48,8 +38,6 @@ type session struct {
 	hashXSubs map[[HASHX_LEN]byte]string
 	// headersSub indicates header subscription
 	headersSub bool
-	// peersSub indicates peer subscription
-	peersSub bool
 	// headersSubRaw indicates the header subscription mode
 	headersSubRaw bool
 	// client provides the ability to send notifications
@ -64,17 +52,18 @@ type session struct {
 func (s *session) doNotify(notification interface{}) {
 	var method string
 	var params interface{}
-	switch note := notification.(type) {
+	switch notification.(type) {
 	case headerNotification:
 		if !s.headersSub {
 			return
 		}
+		note, _ := notification.(headerNotification)
 		heightHash := note.HeightHash
 		method = "blockchain.headers.subscribe"
 		if s.headersSubRaw {
 			header := note.blockHeaderStr
 			if len(header) == 0 {
-				header = hex.EncodeToString(note.BlockHeader[:])
+				header = hex.EncodeToString(note.blockHeader[:])
 			}
 			params = &HeadersSubscribeRawResp{
 				Hex:    header,
@ -83,11 +72,12 @@ func (s *session) doNotify(notification interface{}) {
 		} else {
 			header := note.blockHeaderElectrum
 			if header == nil { // not initialized
-				header = newBlockHeaderElectrum((*[HEADER_SIZE]byte)(note.BlockHeader), uint32(heightHash.Height))
+				header = newBlockHeaderElectrum(&note.blockHeader, uint32(heightHash.Height))
 			}
 			params = header
 		}
 	case hashXNotification:
+		note, _ := notification.(hashXNotification)
 		orig, ok := s.hashXSubs[note.hashX]
 		if !ok {
 			return
@ -102,13 +92,6 @@ func (s *session) doNotify(notification interface{}) {
 			status = hex.EncodeToString(note.status)
 		}
 		params = []string{orig, status}
-	case peerNotification:
-		if !s.peersSub {
-			return
-		}
-		method = "server.peers.subscribe"
-		params = []string{note.address, note.port}
-
 	default:
 		log.Warnf("unknown notification type: %v", notification)
 		return
@ -131,46 +114,34 @@ type sessionMap map[uintptr]*session

 type sessionManager struct {
 	// sessionsMut protects sessions, headerSubs, hashXSubs state
-	sessionsMut sync.RWMutex
-	sessions    sessionMap
-	// sessionsWait   sync.WaitGroup
-	grp            *stop.Group
+	sessionsMut    sync.RWMutex
+	sessions       sessionMap
+	sessionsWait   sync.WaitGroup
 	sessionsMax    int
 	sessionTimeout time.Duration
 	manageTicker   *time.Ticker
 	db             *db.ReadOnlyDBColumnFamily
-	args           *Args
-	server         *Server
 	chain          *chaincfg.Params
-	lbcd           *lbcd.Client
-	// peerSubs are sessions subscribed via 'blockchain.peers.subscribe'
-	peerSubs sessionMap
 	// headerSubs are sessions subscribed via 'blockchain.headers.subscribe'
 	headerSubs sessionMap
 	// hashXSubs are sessions subscribed via 'blockchain.{address,scripthash}.subscribe'
 	hashXSubs map[[HASHX_LEN]byte]sessionMap
 }

-func newSessionManager(server *Server, db *db.ReadOnlyDBColumnFamily, args *Args, grp *stop.Group, chain *chaincfg.Params, lbcd *lbcd.Client) *sessionManager {
+func newSessionManager(db *db.ReadOnlyDBColumnFamily, chain *chaincfg.Params, sessionsMax, sessionTimeout int) *sessionManager {
 	return &sessionManager{
 		sessions:       make(sessionMap),
-		grp:            grp,
-		sessionsMax:    args.MaxSessions,
-		sessionTimeout: time.Duration(args.SessionTimeout) * time.Second,
-		manageTicker:   time.NewTicker(time.Duration(max(5, args.SessionTimeout/20)) * time.Second),
+		sessionsMax:    sessionsMax,
+		sessionTimeout: time.Duration(sessionTimeout) * time.Second,
+		manageTicker:   time.NewTicker(time.Duration(max(5, sessionTimeout/20)) * time.Second),
 		db:             db,
-		args:           args,
-		server:         server,
 		chain:          chain,
-		lbcd:           lbcd,
-		peerSubs:       make(sessionMap),
 		headerSubs:     make(sessionMap),
 		hashXSubs:      make(map[[HASHX_LEN]byte]sessionMap),
 	}
 }

 func (sm *sessionManager) start() {
-	sm.grp.Add(1)
 	go sm.manage()
 }

@ -197,13 +168,7 @@ func (sm *sessionManager) manage() {
 		}
 		sm.sessionsMut.Unlock()
 		// Wait for next management clock tick.
-		select {
-		case <-sm.grp.Ch():
-			sm.grp.Done()
-			return
-		case <-sm.manageTicker.C:
-			continue
-		}
+		<-sm.manageTicker.C
 	}
 }

@ -225,28 +190,14 @@ func (sm *sessionManager) addSession(conn net.Conn) *session {
 	// each request and update subscriptions.
 	s1 := rpc.NewServer()

-	// Register "server.{features,banner,version}" handlers.
-	serverSvc := &ServerService{sm.args}
-	err := s1.RegisterName("server", serverSvc)
-	if err != nil {
-		log.Errorf("RegisterName: %v\n", err)
-	}
-
-	// Register "server.peers" handlers.
-	peersSvc := &PeersService{Server: sm.server}
-	err = s1.RegisterName("server.peers", peersSvc)
-	if err != nil {
-		log.Errorf("RegisterName: %v\n", err)
-	}
-
 	// Register "blockchain.claimtrie.*"" handlers.
-	claimtrieSvc := &ClaimtrieService{sm.db, sm.server}
-	err = s1.RegisterName("blockchain.claimtrie", claimtrieSvc)
+	claimtrieSvc := &ClaimtrieService{sm.db}
+	err := s1.RegisterName("blockchain.claimtrie", claimtrieSvc)
 	if err != nil {
-		log.Errorf("RegisterName: %v\n", err)
+		log.Errorf("RegisterService: %v\n", err)
 	}

-	// Register "blockchain.{block,address,scripthash,transaction}.*" handlers.
+	// Register other "blockchain.{block,address,scripthash}.*" handlers.
 	blockchainSvc := &BlockchainBlockService{sm.db, sm.chain}
 	err = s1.RegisterName("blockchain.block", blockchainSvc)
 	if err != nil {
@ -268,17 +219,12 @@ func (sm *sessionManager) addSession(conn net.Conn) *session {
 		log.Errorf("RegisterName: %v\n", err)
 		goto fail
 	}
-	err = s1.RegisterName("blockchain.transaction", &BlockchainTransactionService{sm.db, sm.chain, sm})
-	if err != nil {
-		log.Errorf("RegisterName: %v\n", err)
-		goto fail
-	}

-	sm.grp.Add(1)
+	sm.sessionsWait.Add(1)
 	go func() {
-		s1.ServeCodec(&sessionServerCodec{jsonrpc.NewServerCodec(newJsonPatchingCodec(conn)), sess})
+		s1.ServeCodec(&SessionServerCodec{jsonrpc.NewServerCodec(conn), sess})
 		log.Infof("session %v goroutine exit", sess.addr.String())
-		sm.grp.Done()
+		sm.sessionsWait.Done()
 	}()
 	return sess

@ -309,27 +255,6 @@ func (sm *sessionManager) removeSessionLocked(sess *session) {
 	sess.conn.Close()
 }

-func (sm *sessionManager) broadcastTx(rawTx []byte) (*chainhash.Hash, error) {
-	var msgTx wire.MsgTx
-	err := msgTx.Deserialize(bytes.NewReader(rawTx))
-	if err != nil {
-		return nil, err
-	}
-	return sm.lbcd.SendRawTransaction(&msgTx, false)
-}
-
-func (sm *sessionManager) peersSubscribe(sess *session, subscribe bool) {
-	sm.sessionsMut.Lock()
-	defer sm.sessionsMut.Unlock()
-	if subscribe {
-		sm.peerSubs[sess.id] = sess
-		sess.peersSub = true
-		return
-	}
-	delete(sm.peerSubs, sess.id)
-	sess.peersSub = false
-}
-
 func (sm *sessionManager) headersSubscribe(sess *session, raw bool, subscribe bool) {
 	sm.sessionsMut.Lock()
 	defer sm.sessionsMut.Unlock()
@ -369,26 +294,18 @@ func (sm *sessionManager) hashXSubscribe(sess *session, hashX []byte, original s
 }

 func (sm *sessionManager) doNotify(notification interface{}) {
-	switch note := notification.(type) {
-	case internal.HeightHash:
-		// The HeightHash notification translates to headerNotification.
-		notification = &headerNotification{HeightHash: note}
-	}
-
 	sm.sessionsMut.RLock()
 	var subsCopy sessionMap
-	switch note := notification.(type) {
+	switch notification.(type) {
 	case headerNotification:
-		log.Infof("header notification @ %#v", note)
+		note, _ := notification.(headerNotification)
 		subsCopy = sm.headerSubs
 		if len(subsCopy) > 0 {
-			hdr := [HEADER_SIZE]byte{}
-			copy(hdr[:], note.BlockHeader)
-			note.blockHeaderElectrum = newBlockHeaderElectrum(&hdr, uint32(note.Height))
-			note.blockHeaderStr = hex.EncodeToString(note.BlockHeader[:])
+			note.blockHeaderElectrum = newBlockHeaderElectrum(&note.blockHeader, uint32(note.Height))
+			note.blockHeaderStr = hex.EncodeToString(note.blockHeader[:])
 		}
 	case hashXNotification:
-		log.Infof("hashX notification @ %#v", note)
+		note, _ := notification.(hashXNotification)
 		hashXSubs, ok := sm.hashXSubs[note.hashX]
 		if ok {
 			subsCopy = hashXSubs
@ -396,8 +313,6 @@ func (sm *sessionManager) doNotify(notification interface{}) {
 		if len(subsCopy) > 0 {
 			note.statusStr = hex.EncodeToString(note.status)
 		}
-	case peerNotification:
-		subsCopy = sm.peerSubs
 	default:
 		log.Warnf("unknown notification type: %v", notification)
 	}
@ -407,50 +322,26 @@ func (sm *sessionManager) doNotify(notification interface{}) {
 	for _, sess := range subsCopy {
 		sess.doNotify(notification)
 	}
-
-	// Produce secondary hashXNotification(s) corresponding to the headerNotification.
-	switch note := notification.(type) {
-	case headerNotification:
-		touched, err := sm.db.GetTouchedHashXs(uint32(note.Height))
-		if err != nil {
-			log.Errorf("failed to get touched hashXs at height %v, error: %v", note.Height, err)
-			break
-		}
-		for _, hashX := range touched {
-			hashXstatus, err := sm.db.GetStatus(hashX)
-			if err != nil {
-				log.Errorf("failed to get status of hashX %v, error: %v", hashX, err)
-				continue
-			}
-			note2 := hashXNotification{}
-			copy(note2.hashX[:], hashX)
-			note2.status = hashXstatus
-			sm.doNotify(note2)
-		}
-	}
 }

-type sessionServerCodec struct {
+type SessionServerCodec struct {
 	rpc.ServerCodec
 	sess *session
 }

 // ReadRequestHeader provides ability to rewrite the incoming
 // request "method" field. For example:
-//
-//	blockchain.block.get_header -> blockchain.block.Get_header
-//	blockchain.address.listunspent -> blockchain.address.Listunspent
-//
+//     blockchain.block.get_header -> blockchain.block.Get_header
+//     blockchain.address.listunspent -> blockchain.address.Listunspent
 // This makes the "method" string compatible with rpc.Server
 // requirements.
-func (c *sessionServerCodec) ReadRequestHeader(req *rpc.Request) error {
-	log.Infof("from %v receive header", c.sess.addr.String())
+func (c *SessionServerCodec) ReadRequestHeader(req *rpc.Request) error {
+	log.Infof("receive header from %v", c.sess.addr.String())
 	err := c.ServerCodec.ReadRequestHeader(req)
 	if err != nil {
 		log.Warnf("error: %v", err)
 		return err
 	}
-	log.Infof("from %v receive header: %#v", c.sess.addr.String(), *req)
 	rawMethod := req.ServiceMethod
 	parts := strings.Split(rawMethod, ".")
 	if len(parts) < 2 {
@ -467,21 +358,20 @@ func (c *sessionServerCodec) ReadRequestHeader(req *rpc.Request) error {
 }

 // ReadRequestBody wraps the regular implementation, but updates session stats too.
-func (c *sessionServerCodec) ReadRequestBody(params any) error {
-	log.Infof("from %v receive body", c.sess.addr.String())
+func (c *SessionServerCodec) ReadRequestBody(params any) error {
 	err := c.ServerCodec.ReadRequestBody(params)
 	if err != nil {
 		log.Warnf("error: %v", err)
 		return err
 	}
-	log.Infof("from %v receive body: %#v", c.sess.addr.String(), params)
+	log.Infof("receive body from %v", c.sess.addr.String())
 	// Bump last receive time.
 	c.sess.lastRecv = time.Now()
 	return err
 }

 // WriteResponse wraps the regular implementation, but updates session stats too.
-func (c *sessionServerCodec) WriteResponse(resp *rpc.Response, reply any) error {
+func (c *SessionServerCodec) WriteResponse(resp *rpc.Response, reply any) error {
 	log.Infof("respond to %v", c.sess.addr.String())
 	err := c.ServerCodec.WriteResponse(resp, reply)
 	if err != nil {
@ -491,141 +381,3 @@ func (c *sessionServerCodec) WriteResponse(resp *rpc.Response, reply any) error
 	c.sess.lastSend = time.Now()
 	return err
 }
-
-// serverRequest is a duplicate of serverRequest from
-// net/rpc/jsonrpc/server.go  with an added Version which
-// we can check.
-type serverRequest struct {
-	Version string           `json:"jsonrpc"`
-	Method  string           `json:"method"`
-	Params  *json.RawMessage `json:"params"`
-	Id      *json.RawMessage `json:"id"`
-}
-
-// serverResponse is a duplicate of serverResponse from
-// net/rpc/jsonrpc/server.go with an added Version which
-// we can set at will.
-type serverResponse struct {
-	Version string           `json:"jsonrpc"`
-	Id      *json.RawMessage `json:"id"`
-	Result  any              `json:"result,omitempty"`
-	Error   any              `json:"error,omitempty"`
-}
-
-// jsonPatchingCodec is able to intercept the JSON requests/responses
-// and tweak them. Currently, it appears we need to make several changes:
-// 1) add "jsonrpc": "2.0" (or "jsonrpc": "1.0") in response
-// 2) add newline to frame response
-// 3) add "params": [] when "params" is missing
-// 4) replace params ["arg1", "arg2", ...] with [["arg1", "arg2", ...]]
-type jsonPatchingCodec struct {
-	conn      net.Conn
-	inBuffer  *bytes.Buffer
-	dec       *json.Decoder
-	enc       *json.Encoder
-	outBuffer *bytes.Buffer
-}
-
-func newJsonPatchingCodec(conn net.Conn) *jsonPatchingCodec {
-	buf1, buf2 := bytes.NewBuffer(nil), bytes.NewBuffer(nil)
-	return &jsonPatchingCodec{
-		conn:      conn,
-		inBuffer:  buf1,
-		dec:       json.NewDecoder(buf1),
-		enc:       json.NewEncoder(buf2),
-		outBuffer: buf2,
-	}
-}
-
-func (c *jsonPatchingCodec) Read(p []byte) (n int, err error) {
-	if c.outBuffer.Len() > 0 {
-		// Return remaining decoded bytes.
-		return c.outBuffer.Read(p)
-	}
-	// Buffer contents consumed. Try to decode more JSON.
-
-	// Read until framing newline. This allows us to print the raw request.
-	for !bytes.ContainsAny(c.inBuffer.Bytes(), "\n") {
-		var buf [1024]byte
-		n, err = c.conn.Read(buf[:])
-		if err != nil {
-			return 0, err
-		}
-		c.inBuffer.Write(buf[:n])
-	}
-	log.Infof("raw request: %v", c.inBuffer.String())
-
-	var req serverRequest
-	err = c.dec.Decode(&req)
-	if err != nil {
-		return 0, err
-	}
-
-	if req.Params != nil {
-		n := len(*req.Params)
-		if n < 2 || (*req.Params)[0] != '[' && (*req.Params)[n-1] != ']' {
-			// This is an error, but we're not going to try to correct it.
-			goto encode
-		}
-		// FIXME: The heuristics here don't cover all possibilities.
-		// For example: [{obj1}, {obj2}] or ["foo,bar"] would not
-		// be handled correctly.
-		bracketed := (*req.Params)[1 : n-1]
-		n = len(bracketed)
-		if n > 1 && (bracketed[0] == '{' || bracketed[0] == '[') {
-			// Probable single object or list argument.
-			goto encode
-		}
-		// The params look like ["arg1", "arg2", "arg3", ...].
-		// We're in trouble because our jsonrpc library does not
-		// handle this. So pack these args in an inner list.
-		// The handler method will receive ONE list argument.
-		params := json.RawMessage(fmt.Sprintf("[[%s]]", bracketed))
-		req.Params = &params
-	} else {
-		// Add empty argument list if params omitted.
-		params := json.RawMessage("[]")
-		req.Params = &params
-	}
-
-encode:
-	// Encode the request. This allows us to print the patched request.
-	buf, err := json.Marshal(req)
-	if err != nil {
-		return 0, err
-	}
-	log.Infof("patched request: %v", string(buf))
-
-	err = c.enc.Encode(req)
-	if err != nil {
-		return 0, err
-	}
-	return c.outBuffer.Read(p)
-}
-
-func (c *jsonPatchingCodec) Write(p []byte) (n int, err error) {
-	log.Infof("raw response: %v", string(p))
-	var resp serverResponse
-	err = json.Unmarshal(p, &resp)
-	if err != nil {
-		return 0, err
-	}
-
-	// Add "jsonrpc": "2.0" if missing.
-	if len(resp.Version) == 0 {
-		resp.Version = "2.0"
-	}
-
-	buf, err := json.Marshal(resp)
-	if err != nil {
-		return 0, err
-	}
-	log.Infof("patched response: %v", string(buf))
-
-	// Add newline for framing.
-	return c.conn.Write(append(buf, '\n'))
-}
-
-func (c *jsonPatchingCodec) Close() error {
-	return c.conn.Close()
-}
--- a/server/udp.go
+++ b/server/udp.go
@ -219,9 +219,8 @@ func UDPPing(ip, port string) (*SPVPong, error) {
 // UDPServer is a goroutine that starts an udp server that implements the hubs
 // Ping/Pong protocol to find out about each other without making full TCP
 // connections.
-func (s *Server) UDPServer(port int) error {
-	address := ":" + strconv.Itoa(port)
-
+func (s *Server) UDPServer() error {
+	address := ":" + s.Args.Port
 	tip := make([]byte, 32)
 	addr, err := net.ResolveUDPAddr("udp", address)
 	if err != nil {
--- a/signal.go
+++ b/signal.go
@ -8,13 +8,12 @@ import (
 	"os"
 	"os/signal"

-	"github.com/lbryio/lbry.go/v3/extras/stop"
 	log "github.com/sirupsen/logrus"
 )

 // shutdownRequestChannel is used to initiate shutdown from one of the
 // subsystems using the same code paths as when an interrupt signal is received.
-var shutdownRequestChannel = make(stop.Chan)
+var shutdownRequestChannel = make(chan struct{})

 // interruptSignals defines the default signals to catch in order to do a proper
 // shutdown.  This may be modified during init depending on the platform.
@ -49,6 +48,7 @@ func interruptListener() <-chan struct{} {
 			case sig := <-interruptChannel:
 				log.Infof("Received signal (%s).  Already "+
 					"shutting down...", sig)
+
 			case <-shutdownRequestChannel:
 				log.Info("Shutdown requested.  Already " +
 					"shutting down...")
--- a/testdata/f.csv
+++ b/testdata/f.csv
@ -1,21 +1,21 @@
 f,
-660d649ba1defa4ab5ab71f8,919be5811844077f4660af66afa9a59a5ad17cf5c541524e780fe2137bfa250c
-6623c6895027f70a5330bbcb,8dadcde1a6f676d4004eacd399f825006ddf136d1e92b1c92113377b3e1741b4
-664f095b24484ebce8f31fbf,c0c4a751f569c1f9c01531f57ba674b2ad2338d9c08f9e9fc85b0209d15466b2
-665201a38de7d7243df717c9,d9293577cc0d51fe3a5bee78fea9b2b2222e6c2aa0d26a4ef4bfb7dd095587e8
-665328b2449e537b0ca4733f,624f80a361e47c7eb1b815e8714a40f67b4f642a5546547a3fcb5bf5593d8fab
-665ec882021f55b1fbaa5fad,1e917fbc04385290d654f711bdef12773dd54b6b5ea26fe2a9d58ed051f2cb7f
-6671c131cd433750ba6d3908,a2ebfbdf7a23024c340a45f201645aa46f48bc1fdd8d34ed83fcffbf1ee90523
-667fb93d9ae877ba11f337f2,4710649e06619e13250754937e9c17c20b07434751171aac2f2f78b184aa0146
-668ed5f39a5db059dc326137,8dd8ca749b87f43e290904749a546fe319c9d53e765f065bb8beb234a117655e
-66951782f6ba94f2b71e46d0,4f5c9434dd0886c57c2530991cebd973e1b50d5ba8fcfc019e54561217a49bbb
-66970565dfe2b01cad49b73a,f6ca0ae18c896d9bc97c5a9d0c3a06256485f59c77fb91780b213f933b80f48b
-669f6a30a6712062da0cc271,5c6604bfd63b871daceb7893dd618850458974fe4108871c1a1323fb8ae34e4e
-66a9a7b89b78553592acf3df,0561f28c3a5ea0027ecb3c53fa068772a6b7cb73d23104a14f9aba8cd1f070a2
-66aba81567ba48f001f843f0,b0f6ae2c1db8263f7e11fc79423109e718d1f3c30bd123c4243401b5e4f1fee6
-66b569cc3d28be4466fb28d1,ecee392ad8217f325508ba38d280436fb0a520b79a9627e5e18197bf55540885
-66d4662cd100d66055917d63,5762a8ac767fa30d2ca76db7081f8a2e4f5da4f0bf92d29e1322da9a154cc3d6
-66d6fa6ac71d0255dd3f185d,5fc193e5e51b3bd8e95f4eb9df63236da7abf678fc47c0b339ceb5c127d0f488
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--- a/testdata/g.csv
+++ b/testdata/g.csv
@ -1,21 +1,21 @@
 g,
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--- a/version.txt
+++ b/version.txt
@ -1 +1 @@
-v0.2022.10.05.1
+v0.2022.10.04.1
Author	SHA1	Message	Date
Jeffrey Picard	5f2d330f76	more endpoints	2022-10-11 22:30:54 +00:00
Jeffrey Picard	698bc22360	server.banner	2022-10-11 14:29:51 +00:00
Jeffrey Picard	66961c1e3d	server.xxx endpoints Additional server endpoints in jsonrpc and also some refactoring	2022-10-11 10:54:46 +00:00