refactor trending

lbry/wallet/server/block_processor.py

@@ -5,7 +5,7 @@ import struct
 from bisect import bisect_right
 from struct import pack, unpack
 from concurrent.futures.thread import ThreadPoolExecutor
-from typing import Optional, List, Tuple, Set, DefaultDict, Dict
+from typing import Optional, List, Tuple, Set, DefaultDict, Dict, NamedTuple
 from prometheus_client import Gauge, Histogram
 from collections import defaultdict
 import array
@@ -35,6 +35,13 @@ if typing.TYPE_CHECKING:
     from lbry.wallet.server.leveldb import LevelDB
 
 
+class TrendingNotification(NamedTuple):
+    height: int
+    added: bool
+    prev_amount: int
+    new_amount: int
+
+
 class Prefetcher:
     """Prefetches blocks (in the forward direction only)."""
 
@@ -245,6 +252,7 @@ class BlockProcessor:
 
         self.removed_claims_to_send_es = set()  # cumulative changes across blocks to send ES
         self.touched_claims_to_send_es = set()
+        self.activation_info_to_send_es: DefaultDict[str, List[TrendingNotification]] = defaultdict(list)
 
         self.removed_claim_hashes: Set[bytes] = set()  # per block changes
         self.touched_claim_hashes: Set[bytes] = set()
@@ -322,10 +330,11 @@ class BlockProcessor:
                     await self.db.search_index.claim_consumer(self.claim_producer())
                     await self.db.search_index.apply_filters(self.db.blocked_streams, self.db.blocked_channels,
                                                                  self.db.filtered_streams, self.db.filtered_channels)
-                        await self.db.search_index.apply_update_and_decay_trending_score()
+                    await self.db.search_index.update_trending_score(self.activation_info_to_send_es)
                 self.db.search_index.clear_caches()
                 self.touched_claims_to_send_es.clear()
                 self.removed_claims_to_send_es.clear()
+                self.activation_info_to_send_es.clear()
                 # print("******************\n")
             except:
                 self.logger.exception("advance blocks failed")
@@ -369,6 +378,7 @@ class BlockProcessor:
                     self.db.search_index.clear_caches()
                     self.touched_claims_to_send_es.clear()
                     self.removed_claims_to_send_es.clear()
+                    self.activation_info_to_send_es.clear()
                 await self.prefetcher.reset_height(self.height)
                 self.reorg_count_metric.inc()
             except:
@@ -518,11 +528,6 @@ class BlockProcessor:
         self.claim_hash_to_txo[claim_hash] = (tx_num, nout)
         self.db_op_stack.extend_ops(pending.get_add_claim_utxo_ops())
 
-        # add the spike for trending
-        self.db_op_stack.append_op(self.db.prefix_db.trending_spike.pack_spike(
-            height, claim_hash, tx_num, nout, txo.amount, half_life=self.env.trending_half_life
-        ))
-
     def _add_support(self, height: int, txo: 'Output', tx_num: int, nout: int):
         supported_claim_hash = txo.claim_hash[::-1]
         self.support_txos_by_claim[supported_claim_hash].append((tx_num, nout))
@@ -532,11 +537,6 @@ class BlockProcessor:
             supported_claim_hash, tx_num, nout, txo.amount
         ).get_add_support_utxo_ops())
 
-        # add the spike for trending
-        self.db_op_stack.append_op(self.db.prefix_db.trending_spike.pack_spike(
-            height, supported_claim_hash, tx_num, nout, txo.amount, half_life=self.env.trending_half_life
-        ))
-
     def _add_claim_or_support(self, height: int, tx_hash: bytes, tx_num: int, nout: int, txo: 'Output',
                               spent_claims: typing.Dict[bytes, Tuple[int, int, str]]):
         if txo.script.is_claim_name or txo.script.is_update_claim:
@@ -552,7 +552,6 @@ class BlockProcessor:
             self.support_txos_by_claim[spent_support].remove((txin_num, txin.prev_idx))
             supported_name = self._get_pending_claim_name(spent_support)
             self.removed_support_txos_by_name_by_claim[supported_name][spent_support].append((txin_num, txin.prev_idx))
-            txin_height = height
         else:
             spent_support, support_amount = self.db.get_supported_claim_from_txo(txin_num, txin.prev_idx)
             if not spent_support:  # it is not a support
@@ -562,7 +561,6 @@ class BlockProcessor:
                 self.removed_support_txos_by_name_by_claim[supported_name][spent_support].append(
                     (txin_num, txin.prev_idx))
             activation = self.db.get_activation(txin_num, txin.prev_idx, is_support=True)
-            txin_height = bisect_right(self.db.tx_counts, self.db.transaction_num_mapping[txin.prev_hash])
             if 0 < activation < self.height + 1:
                 self.removed_active_support_amount_by_claim[spent_support].append(support_amount)
             if supported_name is not None and activation > 0:
@@ -574,11 +572,6 @@ class BlockProcessor:
         self.db_op_stack.extend_ops(StagedClaimtrieSupport(
             spent_support, txin_num, txin.prev_idx, support_amount
         ).get_spend_support_txo_ops())
-        # add the spike for trending
-        self.db_op_stack.append_op(self.db.prefix_db.trending_spike.pack_spike(
-            height, spent_support, txin_num, txin.prev_idx, support_amount, subtract=True,
-            depth=height-txin_height-1, half_life=self.env.trending_half_life
-        ))
 
     def _spend_claim_txo(self, txin: TxInput, spent_claims: Dict[bytes, Tuple[int, int, str]]) -> bool:
         txin_num = self.db.transaction_num_mapping[txin.prev_hash]
@@ -1121,15 +1114,30 @@ class BlockProcessor:
                     self.touched_claim_hashes.add(controlling.claim_hash)
                 self.touched_claim_hashes.add(winning)
 
-    def _get_cumulative_update_ops(self):
+    def _add_claim_activation_change_notification(self, claim_id: str, height: int, added: bool, prev_amount: int,
+                                                  new_amount: int):
+        self.activation_info_to_send_es[claim_id].append(TrendingNotification(height, added, prev_amount, new_amount))
+
+    def _get_cumulative_update_ops(self, height: int):
         # gather cumulative removed/touched sets to update the search index
         self.removed_claim_hashes.update(set(self.abandoned_claims.keys()))
+        self.touched_claim_hashes.difference_update(self.removed_claim_hashes)
         self.touched_claim_hashes.update(
-            set(self.activated_support_amount_by_claim.keys()).union(
+            set(
-                set(claim_hash for (_, claim_hash) in self.activated_claim_amount_by_name_and_hash.keys())
+                map(lambda item: item[1], self.activated_claim_amount_by_name_and_hash.keys())
-            ).union(self.signatures_changed).union(
+            ).union(
+                set(self.claim_hash_to_txo.keys())
+            ).union(
+                self.removed_active_support_amount_by_claim.keys()
+            ).union(
+                self.signatures_changed
+            ).union(
                 set(self.removed_active_support_amount_by_claim.keys())
-            ).difference(self.removed_claim_hashes)
+            ).union(
+                set(self.activated_support_amount_by_claim.keys())
+            ).difference(
+                self.removed_claim_hashes
+            )
         )
 
         # use the cumulative changes to update bid ordered resolve
@@ -1145,6 +1153,8 @@ class BlockProcessor:
                         amt.position, removed
                     ))
         for touched in self.touched_claim_hashes:
+            prev_effective_amount = 0
+
             if touched in self.claim_hash_to_txo:
                 pending = self.txo_to_claim[self.claim_hash_to_txo[touched]]
                 name, tx_num, position = pending.normalized_name, pending.tx_num, pending.position
@@ -1152,6 +1162,7 @@ class BlockProcessor:
                 if claim_from_db:
                     claim_amount_info = self.db.get_url_effective_amount(name, touched)
                     if claim_amount_info:
+                        prev_effective_amount = claim_amount_info.effective_amount
                         self.db_op_stack.extend_ops(get_remove_effective_amount_ops(
                             name, claim_amount_info.effective_amount, claim_amount_info.tx_num,
                             claim_amount_info.position, touched
@@ -1163,12 +1174,33 @@ class BlockProcessor:
                 name, tx_num, position = v.normalized_name, v.tx_num, v.position
                 amt = self.db.get_url_effective_amount(name, touched)
                 if amt:
-                    self.db_op_stack.extend_ops(get_remove_effective_amount_ops(
+                    prev_effective_amount = amt.effective_amount
-                        name, amt.effective_amount, amt.tx_num, amt.position, touched
-                    ))
                     self.db_op_stack.extend_ops(
-                get_add_effective_amount_ops(name, self._get_pending_effective_amount(name, touched),
+                        get_remove_effective_amount_ops(
-                                             tx_num, position, touched)
+                            name, amt.effective_amount, amt.tx_num, amt.position, touched
+                        )
+                    )
+
+            if (name, touched) in self.activated_claim_amount_by_name_and_hash:
+                self._add_claim_activation_change_notification(
+                    touched.hex(), height, True, prev_effective_amount,
+                    self.activated_claim_amount_by_name_and_hash[(name, touched)]
+                )
+            if touched in self.activated_support_amount_by_claim:
+                for support_amount in self.activated_support_amount_by_claim[touched]:
+                    self._add_claim_activation_change_notification(
+                        touched.hex(), height, True, prev_effective_amount, support_amount
+                    )
+            if touched in self.removed_active_support_amount_by_claim:
+                for support_amount in self.removed_active_support_amount_by_claim[touched]:
+                    self._add_claim_activation_change_notification(
+                        touched.hex(), height, False, prev_effective_amount, support_amount
+                    )
+            new_effective_amount = self._get_pending_effective_amount(name, touched)
+            self.db_op_stack.extend_ops(
+                get_add_effective_amount_ops(
+                    name, new_effective_amount, tx_num, position, touched
+                )
             )
 
         self.touched_claim_hashes.update(
@@ -1254,7 +1286,7 @@ class BlockProcessor:
         self._get_takeover_ops(height)
 
         # update effective amount and update sets of touched and deleted claims
-        self._get_cumulative_update_ops()
+        self._get_cumulative_update_ops(height)
 
         self.db_op_stack.append_op(RevertablePut(*Prefixes.tx_count.pack_item(height, tx_count)))
 
@@ -1441,7 +1473,6 @@ class BlockProcessor:
             self.height = self.db.db_height
             self.tip = self.db.db_tip
             self.tx_count = self.db.db_tx_count
-
             self.status_server.set_height(self.db.fs_height, self.db.db_tip)
             await asyncio.wait([
                 self.prefetcher.main_loop(self.height),

lbry/wallet/server/db/elasticsearch/constants.py

@@ -31,7 +31,6 @@ INDEX_DEFAULT_SETTINGS = {
             "claim_type": {"type": "byte"},
             "censor_type": {"type": "byte"},
             "trending_score": {"type": "float"},
-            "trending_score_change": {"type": "float"},
             "release_time": {"type": "long"}
         }
     }

lbry/wallet/server/db/elasticsearch/search.py

@@ -158,46 +158,74 @@ class SearchIndex:
         }
         return update
 
-    async def apply_update_and_decay_trending_score(self):
+    async def update_trending_score(self, params):
         update_trending_score_script = """
+        double softenLBC(double lbc) { Math.pow(lbc, 1.0f / 3.0f) }
+        double inflateUnits(int height) { Math.pow(2.0, height / 400.0f) }
+        double spikePower(double newAmount) {
+            if (newAmount < 50.0) {
+                0.5
+            } else if (newAmount < 85.0) {
+                newAmount / 100.0
+            } else {
+                0.85
+            }
+        }
+        double spikeMass(double oldAmount, double newAmount) {
+            double softenedChange = softenLBC(Math.abs(newAmount - oldAmount));
+            double changeInSoftened = Math.abs(softenLBC(newAmount) - softenLBC(oldAmount));
+            if (oldAmount > newAmount) {
+                -1.0 * Math.pow(changeInSoftened, spikePower(newAmount)) * Math.pow(softenedChange, 1.0 - spikePower(newAmount))
+            } else {
+                Math.pow(changeInSoftened, spikePower(newAmount)) * Math.pow(softenedChange, 1.0 - spikePower(newAmount))
+            }
+        }
+        for (i in params.src.changes) {
+            if (i.added) {
                 if (ctx._source.trending_score == null) {
-            ctx._source.trending_score = ctx._source.trending_score_change;
+                    ctx._source.trending_score = spikeMass(i.prev_amount, i.prev_amount + i.new_amount);
                 } else {
-            ctx._source.trending_score += ctx._source.trending_score_change;
+                    ctx._source.trending_score += spikeMass(i.prev_amount, i.prev_amount + i.new_amount);
+                }
+            } else {
+                if (ctx._source.trending_score == null) {
+                    ctx._source.trending_score = spikeMass(i.prev_amount, i.prev_amount - i.new_amount);
+                } else {
+                    ctx._source.trending_score += spikeMass(i.prev_amount, i.prev_amount - i.new_amount);
+                }
+            }
         }
-        ctx._source.trending_score_change = 0.0;
         """
+        start = time.perf_counter()
 
-        start = time.perf_counter()
+        def producer():
-        await self.sync_client.update_by_query(
+            for claim_id, claim_updates in params.items():
-            self.index, body={
+                yield {
-                'query': {
+                    '_id': claim_id,
-                    'bool': {'must_not': [{'match': {'trending_score_change': 0.0}}]}
+                    '_index': self.index,
+                    '_op_type': 'update',
+                    'script': {
+                        'lang': 'painless',
+                        'source': update_trending_score_script,
+                        'params': {'src': {
+                            'changes': [
+                                {
+                                    'height': p.height,
+                                    'added': p.added,
+                                    'prev_amount': p.prev_amount,
+                                    'new_amount': p.new_amount,
+                                } for p in claim_updates
+                            ]
+                        }}
                     },
-                'script': {'source': update_trending_score_script, 'lang': 'painless'}
-            }, slices=4, conflicts='proceed'
-        )
-        self.logger.info("updated trending scores in %ims", int((time.perf_counter() - start) * 1000))
-        whale_decay_factor = 2.0 ** ((-1 / self._trending_whale_half_life) + 1)
-        decay_factor = 2.0 ** ((-1 / self._trending_half_life) + 1)
-        decay_script = """
-        if (ctx._source.trending_score == null) { ctx._source.trending_score = 0.0; }
-        if ((-0.1 <= ctx._source.trending_score) && (ctx._source.trending_score <= 0.1)) {
-            ctx._source.trending_score = 0.0;
-        } else if (ctx._source.effective_amount >= %s) {
-            ctx._source.trending_score *= %s;
-        } else {
-            ctx._source.trending_score *= %s;
                 }
-        """ % (self._trending_whale_threshold, whale_decay_factor, decay_factor)
+        if not params:
-        start = time.perf_counter()
+            return
-        await self.sync_client.update_by_query(
+        async for ok, item in async_streaming_bulk(self.sync_client, producer(), raise_on_error=False):
-            self.index, body={
+            if not ok:
-                'query': {'bool': {'must_not': [{'match': {'trending_score': 0.0}}]}},
+                self.logger.warning("updating trending failed for an item: %s", item)
-                'script': {'source': decay_script, 'lang': 'painless'}
+        await self.sync_client.indices.refresh(self.index)
-            }, slices=4, conflicts='proceed'
+        self.logger.warning("updated trending scores in %ims", int((time.perf_counter() - start) * 1000))
-        )
-        self.logger.info("decayed trending scores in %ims", int((time.perf_counter() - start) * 1000))
 
     async def apply_filters(self, blocked_streams, blocked_channels, filtered_streams, filtered_channels):
         if filtered_streams:

lbry/wallet/server/db/prefixes.py

@@ -463,21 +463,6 @@ class TouchedOrDeletedClaimValue(typing.NamedTuple):
                f"deleted_claims={','.join(map(lambda x: x.hex(), self.deleted_claims))})"
 
 
-class TrendingSpikeKey(typing.NamedTuple):
-    height: int
-    claim_hash: bytes
-    tx_num: int
-    position: int
-
-    def __str__(self):
-        return f"{self.__class__.__name__}(height={self.height}, claim_hash={self.claim_hash.hex()}, " \
-               f"tx_num={self.tx_num}, position={self.position})"
-
-
-class TrendingSpikeValue(typing.NamedTuple):
-    mass: float
-
-
 class ActiveAmountPrefixRow(PrefixRow):
     prefix = DB_PREFIXES.active_amount.value
     key_struct = struct.Struct(b'>20sBLLH')
@@ -1350,49 +1335,6 @@ class TouchedOrDeletedPrefixRow(PrefixRow):
         return cls.pack_key(height), cls.pack_value(touched, deleted)
 
 
-class TrendingSpikePrefixRow(PrefixRow):
-    prefix = DB_PREFIXES.trending_spike.value
-    key_struct = struct.Struct(b'>L20sLH')
-    value_struct = struct.Struct(b'>f')
-
-    key_part_lambdas = [
-        lambda: b'',
-        struct.Struct(b'>L').pack,
-        struct.Struct(b'>L20s').pack,
-        struct.Struct(b'>L20sL').pack,
-        struct.Struct(b'>L20sLH').pack
-    ]
-
-    @classmethod
-    def pack_spike(cls, height: int, claim_hash: bytes, tx_num: int, position: int, amount: int, half_life: int,
-                   depth: int = 0, subtract: bool = False) -> RevertablePut:
-        softened_change = (((amount * 1E-8) + 1E-8) ** (1 / 4))
-        spike_mass = softened_change * ((2.0 ** (-1 / half_life)) ** depth)
-        if subtract:
-            spike_mass = -spike_mass
-        return RevertablePut(*cls.pack_item(height, claim_hash, tx_num, position, spike_mass))
-
-    @classmethod
-    def pack_key(cls, height: int, claim_hash: bytes, tx_num: int, position: int):
-        return super().pack_key(height, claim_hash, tx_num, position)
-
-    @classmethod
-    def unpack_key(cls, key: bytes) -> TrendingSpikeKey:
-        return TrendingSpikeKey(*super().unpack_key(key))
-
-    @classmethod
-    def pack_value(cls, mass: float) -> bytes:
-        return super().pack_value(mass)
-
-    @classmethod
-    def unpack_value(cls, data: bytes) -> TrendingSpikeValue:
-        return TrendingSpikeValue(*cls.value_struct.unpack(data))
-
-    @classmethod
-    def pack_item(cls, height: int, claim_hash: bytes, tx_num: int, position: int, mass: float):
-        return cls.pack_key(height, claim_hash, tx_num, position), cls.pack_value(mass)
-
-
 class Prefixes:
     claim_to_support = ClaimToSupportPrefixRow
     support_to_claim = SupportToClaimPrefixRow
@@ -1427,7 +1369,6 @@ class Prefixes:
     tx = TXPrefixRow
     header = BlockHeaderPrefixRow
     touched_or_deleted = TouchedOrDeletedPrefixRow
-    trending_spike = TrendingSpikePrefixRow
 
 
 class PrefixDB:
@@ -1461,7 +1402,6 @@ class PrefixDB:
         self.tx = TXPrefixRow(db, op_stack)
         self.header = BlockHeaderPrefixRow(db, op_stack)
         self.touched_or_deleted = TouchedOrDeletedPrefixRow(db, op_stack)
-        self.trending_spike = TrendingSpikePrefixRow(db, op_stack)
 
     def commit(self):
         try:

lbry/wallet/server/leveldb.py

@@ -18,7 +18,7 @@ import attr
 import zlib
 import base64
 import plyvel
-from typing import Optional, Iterable, Tuple, DefaultDict, Set, Dict, List
+from typing import Optional, Iterable, Tuple, DefaultDict, Set, Dict, List, TYPE_CHECKING
 from functools import partial
 from asyncio import sleep
 from bisect import bisect_right
@@ -44,6 +44,9 @@ from lbry.wallet.ledger import Ledger, RegTestLedger, TestNetLedger
 
 from lbry.wallet.server.db.elasticsearch import SearchIndex
 
+if TYPE_CHECKING:
+    from lbry.wallet.server.db.prefixes import EffectiveAmountKey
+
 
 class UTXO(typing.NamedTuple):
     tx_num: int
@@ -187,12 +190,6 @@ class LevelDB:
             cnt += 1
         return cnt
 
-    def get_trending_spike_sum(self, height: int, claim_hash: bytes) -> float:
-        spikes = 0.0
-        for k, v in self.prefix_db.trending_spike.iterate(prefix=(height, claim_hash)):
-            spikes += v.mass
-        return spikes
-
     def get_activation(self, tx_num, position, is_support=False) -> int:
         activation = self.db.get(
             Prefixes.activated.pack_key(
@@ -409,9 +406,10 @@ class LevelDB:
     def _fs_get_claim_by_hash(self, claim_hash):
         claim = self.claim_to_txo.get(claim_hash)
         if claim:
+            activation = self.get_activation(claim.tx_num, claim.position)
             return self._prepare_resolve_result(
                 claim.tx_num, claim.position, claim_hash, claim.name, claim.root_tx_num, claim.root_position,
-                self.get_activation(claim.tx_num, claim.position), claim.channel_signature_is_valid
+                activation, claim.channel_signature_is_valid
             )
 
     async def fs_getclaimbyid(self, claim_id):
@@ -457,7 +455,7 @@ class LevelDB:
             return support_only
         return support_amount + self._get_active_amount(claim_hash, ACTIVATED_CLAIM_TXO_TYPE, self.db_height + 1)
 
-    def get_url_effective_amount(self, name: str, claim_hash: bytes):
+    def get_url_effective_amount(self, name: str, claim_hash: bytes) -> Optional['EffectiveAmountKey']:
         for k, v in self.prefix_db.effective_amount.iterate(prefix=(name,)):
             if v.claim_hash == claim_hash:
                 return k
@@ -708,8 +706,7 @@ class LevelDB:
             'languages': languages,
             'censor_type': Censor.RESOLVE if blocked_hash else Censor.SEARCH if filtered_hash else Censor.NOT_CENSORED,
             'censoring_channel_id': (blocked_hash or filtered_hash or b'').hex() or None,
-            'claims_in_channel': None if not metadata.is_channel else self.get_claims_in_channel_count(claim_hash),
+            'claims_in_channel': None if not metadata.is_channel else self.get_claims_in_channel_count(claim_hash)
-            'trending_score_change': self.get_trending_spike_sum(self.db_height, claim_hash)
         }
 
         if metadata.is_repost and reposted_duration is not None:
@@ -946,11 +943,6 @@ class LevelDB:
                     stop=Prefixes.touched_or_deleted.pack_key(min_height), include_value=False
                 )
             )
-            delete_undo_keys.extend(
-                self.db.iterator(
-                    prefix=Prefixes.trending_spike.pack_partial_key(min_height), include_value=False
-                )
-            )
 
         with self.db.write_batch(transaction=True) as batch:
             batch_put = batch.put

tests/integration/blockchain/test_resolve_command.py

@@ -37,6 +37,15 @@ class BaseResolveTestCase(CommandTestCase):
         claim_from_es = await self.conductor.spv_node.server.bp.db.search_index.search(name=name)
         self.assertListEqual([], claim_from_es[0])
 
+    async def assertNoClaim(self, claim_id: str):
+        self.assertDictEqual(
+            {}, json.loads(await self.blockchain._cli_cmnd('getclaimbyid', claim_id))
+        )
+        claim_from_es = await self.conductor.spv_node.server.bp.db.search_index.search(claim_id=claim_id)
+        self.assertListEqual([], claim_from_es[0])
+        claim = await self.conductor.spv_node.server.bp.db.fs_getclaimbyid(claim_id)
+        self.assertIsNone(claim)
+
     async def assertMatchWinningClaim(self, name):
         expected = json.loads(await self.blockchain._cli_cmnd('getvalueforname', name))
         stream, channel = await self.conductor.spv_node.server.bp.db.fs_resolve(name)
@@ -61,6 +70,11 @@ class BaseResolveTestCase(CommandTestCase):
         if not expected:
             self.assertIsNone(claim)
             return
+        claim_from_es = await self.conductor.spv_node.server.bp.db.search_index.search(
+            claim_id=claim.claim_hash.hex()
+        )
+        self.assertEqual(len(claim_from_es[0]), 1)
+        self.assertEqual(claim_from_es[0][0]['claim_hash'][::-1].hex(), claim.claim_hash.hex())
         self.assertEqual(expected['claimId'], claim.claim_hash.hex())
         self.assertEqual(expected['validAtHeight'], claim.activation_height)
         self.assertEqual(expected['lastTakeoverHeight'], claim.last_takeover_height)
@@ -945,6 +959,24 @@ class ResolveClaimTakeovers(BaseResolveTestCase):
         await self.generate(1)
         await self.assertNoClaimForName(name)
 
+    async def _test_add_non_winning_already_claimed(self):
+        name = 'derp'
+        # initially claim the name
+        first_claim_id = (await self.stream_create(name, '0.1'))['outputs'][0]['claim_id']
+        self.assertEqual(first_claim_id, (await self.assertMatchWinningClaim(name)).claim_hash.hex())
+        await self.generate(32)
+
+        second_claim_id = (await self.stream_create(name, '0.01', allow_duplicate_name=True))['outputs'][0]['claim_id']
+        await self.assertNoClaim(second_claim_id)
+        self.assertEqual(
+            len((await self.conductor.spv_node.server.bp.db.search_index.search(claim_name=name))[0]), 1
+        )
+        await self.generate(1)
+        await self.assertMatchClaim(second_claim_id)
+        self.assertEqual(
+            len((await self.conductor.spv_node.server.bp.db.search_index.search(claim_name=name))[0]), 2
+        )
+
 
 class ResolveAfterReorg(BaseResolveTestCase):
     async def reorg(self, start):