forked from LBRYCommunity/lbry-sdk
moved fast_sync.py script
This commit is contained in:
Lex Berezhny
parent
e66445b46e
commit
db1f984558
2 changed files with 270 additions and 289 deletions
|
|
@ -1,276 +0,0 @@
|
|||
import os
|
||||
import time
|
||||
from glob import glob
|
||||
import sqlite3
|
||||
import asyncio
|
||||
import struct
|
||||
from contextvars import ContextVar
|
||||
from concurrent.futures import ProcessPoolExecutor
|
||||
from lbry.wallet.bcd_data_stream import BCDataStream
|
||||
from lbry.crypto.hash import double_sha256
|
||||
from lbry.wallet.transaction import Transaction
|
||||
from binascii import hexlify
|
||||
|
||||
|
||||
db = ContextVar('db')
|
||||
|
||||
|
||||
def initializer(_path):
|
||||
_db = sqlite3.connect(_path, isolation_level=None, uri=True, timeout=60.0*5)
|
||||
_db.row_factory = sqlite3.Row
|
||||
_db.executescript("""
|
||||
pragma journal_mode=wal;
|
||||
""")
|
||||
db.set(_db)
|
||||
|
||||
|
||||
def read_block(block: bytes):
|
||||
reader = BCDataStream()
|
||||
reader.data = block
|
||||
|
||||
|
||||
ZERO_BLOCK = bytes((0,)*32)
|
||||
|
||||
|
||||
def parse_header(header):
|
||||
version, = struct.unpack('<I', header[:4])
|
||||
timestamp, bits, nonce = struct.unpack('<III', header[100:112])
|
||||
return {
|
||||
'version': version,
|
||||
'block_hash': double_sha256(header),
|
||||
'prev_block_hash': header[4:36],
|
||||
'merkle_root': header[36:68],
|
||||
'claim_trie_root': header[68:100][::-1],
|
||||
'timestamp': timestamp,
|
||||
'bits': bits,
|
||||
'nonce': nonce,
|
||||
}
|
||||
|
||||
|
||||
def parse_txs(stream):
|
||||
tx_count = stream.read_compact_size()
|
||||
return [Transaction(position=i)._deserialize(stream) for i in range(tx_count)]
|
||||
|
||||
|
||||
def process_file(file_path):
|
||||
print(f'started: {file_path}')
|
||||
sql = db.get()
|
||||
stream = BCDataStream()
|
||||
stream.data = open(file_path, 'rb')
|
||||
blocks, txs, claims, supports, spends = [], [], [], [], []
|
||||
while stream.read_uint32() == 4054508794:
|
||||
block_size = stream.read_uint32()
|
||||
header = parse_header(stream.data.read(112))
|
||||
is_first_block = header['prev_block_hash'] == ZERO_BLOCK
|
||||
for tx in parse_txs(stream):
|
||||
txs.append((header['block_hash'], tx.position, tx.hash))
|
||||
for txi in tx.inputs:
|
||||
if not txi.is_coinbase:
|
||||
spends.append((header['block_hash'], tx.hash, txi.txo_ref.hash))
|
||||
for output in tx.outputs:
|
||||
try:
|
||||
if output.is_support:
|
||||
supports.append((
|
||||
header['block_hash'], tx.hash, output.ref.hash, output.claim_hash, output.amount
|
||||
))
|
||||
elif output.script.is_claim_name:
|
||||
claims.append((
|
||||
header['block_hash'], tx.hash, tx.position, output.ref.hash, output.claim_hash,
|
||||
output.claim_name, 1, output.amount, None, None
|
||||
))
|
||||
elif output.script.is_update_claim:
|
||||
claims.append((
|
||||
header['block_hash'], tx.hash, tx.position, output.ref.hash, output.claim_hash,
|
||||
output.claim_name, 2, output.amount, None, None
|
||||
))
|
||||
except:
|
||||
pass
|
||||
blocks.append((header['block_hash'], header['prev_block_hash'], 0 if is_first_block else None))
|
||||
|
||||
print(f'inserting sql in {file_path}')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into block values (?, ?, ?)", blocks)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into tx values (?, ?, ?)", txs)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into txi values (?, ?, ?)", spends)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into support values (?, ?, ?, ?, ?)", supports)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into claim_history values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", claims)
|
||||
sql.execute('commit;')
|
||||
|
||||
return len(blocks), len(txs)
|
||||
|
||||
|
||||
def create_db():
|
||||
sql = db.get()
|
||||
sql.executescript("""
|
||||
create table block (
|
||||
block_hash bytes not null,
|
||||
previous_hash bytes not null,
|
||||
height int
|
||||
);
|
||||
create table tx (
|
||||
block_hash integer not null,
|
||||
position integer not null,
|
||||
tx_hash bytes not null
|
||||
);
|
||||
create table txi (
|
||||
block_hash bytes not null,
|
||||
tx_hash bytes not null,
|
||||
txo_hash bytes not null
|
||||
);
|
||||
create table claim (
|
||||
txo_hash bytes not null,
|
||||
claim_hash bytes not null,
|
||||
claim_name text not null,
|
||||
amount integer not null,
|
||||
height integer
|
||||
);
|
||||
create table claim_history (
|
||||
block_hash bytes not null,
|
||||
tx_hash bytes not null,
|
||||
tx_position integer not null,
|
||||
txo_hash bytes not null,
|
||||
claim_hash bytes not null,
|
||||
claim_name text not null,
|
||||
action integer not null,
|
||||
amount integer not null,
|
||||
height integer,
|
||||
is_spent bool
|
||||
);
|
||||
create table support (
|
||||
block_hash bytes not null,
|
||||
tx_hash bytes not null,
|
||||
txo_hash bytes not null,
|
||||
claim_hash bytes not null,
|
||||
amount integer not null
|
||||
);
|
||||
""")
|
||||
|
||||
|
||||
def clean_chain():
|
||||
sql = db.get()
|
||||
|
||||
print('traversing chain and setting height')
|
||||
sql.execute('begin;')
|
||||
|
||||
print(' + adding unique block (block_hash) index')
|
||||
sql.execute("create unique index block_hash_idx on block (block_hash)")
|
||||
|
||||
print(' + adding block (previous_hash) index')
|
||||
sql.execute("create index block_previous_block_hash_idx on block (previous_hash)")
|
||||
|
||||
print(' * setting block.height')
|
||||
sql.execute("""
|
||||
WITH RECURSIVE blocks(block_hash, previous_hash, height) AS (
|
||||
SELECT block_hash, previous_hash, height from block WHERE height = 0
|
||||
UNION
|
||||
SELECT block.block_hash, block.previous_hash, blocks.height+1
|
||||
FROM block, blocks
|
||||
WHERE block.previous_hash=blocks.block_hash
|
||||
)
|
||||
UPDATE block SET height=(SELECT height FROM blocks WHERE block.block_hash=blocks.block_hash)
|
||||
""")
|
||||
|
||||
print(' + adding block (height) index')
|
||||
sql.execute("create index block_height_idx on block (height)")
|
||||
|
||||
for table in ('tx', 'txi', 'claim_history', 'support'):
|
||||
print(f' + adding {table} (block_hash) index')
|
||||
sql.execute(f"create index {table}_block_hash_idx on {table} (block_hash)")
|
||||
|
||||
sql.execute('commit;')
|
||||
sql.execute('begin;')
|
||||
|
||||
print(' - deleting forks:')
|
||||
forks = sql.execute("""
|
||||
WITH RECURSIVE blocks(block_hash, previous_hash) AS (
|
||||
SELECT block_hash, previous_hash FROM block WHERE
|
||||
block_hash NOT IN (SELECT previous_hash FROM block) AND
|
||||
height != (SELECT MAX(height) FROM block)
|
||||
UNION
|
||||
SELECT block.block_hash, block.previous_hash FROM block, blocks WHERE
|
||||
block.block_hash=blocks.previous_hash AND
|
||||
(SELECT COUNT(*) FROM block forks WHERE forks.height=block.height) > 1
|
||||
)
|
||||
SELECT block_hash FROM blocks;
|
||||
""")
|
||||
for i, fork in enumerate(forks):
|
||||
sql.execute('DELETE FROM block WHERE block_hash = ?', (fork[0],))
|
||||
print(f' - block (fork:{i+1}): {hexlify(fork[0][::-1]).decode()}')
|
||||
deleted_stats = {}
|
||||
for table in ('tx', 'txi', 'claim_history', 'support'):
|
||||
deleted = sql.execute(f"DELETE FROM {table} WHERE block_hash = ?", (fork[0],)).rowcount
|
||||
if deleted > 0:
|
||||
deleted_stats[table] = deleted
|
||||
print(f' - {deleted_stats}')
|
||||
|
||||
sql.execute('commit;')
|
||||
sql.execute('begin;')
|
||||
|
||||
print(' + adding unique tx (tx_hash, block_hash) index')
|
||||
sql.execute("create unique index tx_hash_idx on tx (tx_hash, block_hash)")
|
||||
print(' + adding unique txi (txo_hash) index')
|
||||
sql.execute("create unique index txi_txo_hash_idx on txi (txo_hash)")
|
||||
|
||||
print('processing claim history & populating claim table')
|
||||
|
||||
print(' * setting claim_history.height and claim_history.is_spent')
|
||||
sql.execute("""
|
||||
UPDATE claim_history SET
|
||||
height = (SELECT height FROM tx JOIN block USING (block_hash) WHERE tx.tx_hash=claim_history.tx_hash),
|
||||
is_spent = COALESCE((SELECT 1 FROM txi WHERE txo_hash=claim_history.txo_hash), 0)
|
||||
""")
|
||||
|
||||
print(' + adding claim_history (claim_hash) index')
|
||||
sql.execute("create index claim_history_hash_idx on claim_history (claim_hash)")
|
||||
|
||||
print(' * populating claim table')
|
||||
sql.execute("""
|
||||
INSERT INTO claim
|
||||
SELECT txo_hash, claim_history.claim_hash, claim_name, amount, height FROM (
|
||||
SELECT claim_hash, is_spent FROM claim_history
|
||||
GROUP BY claim_hash HAVING MAX(height) AND MAX(tx_position)
|
||||
) AS latest_claim_state JOIN claim_history USING (claim_hash)
|
||||
WHERE latest_claim_state.is_spent=0;
|
||||
""")
|
||||
|
||||
sql.execute('commit;')
|
||||
|
||||
|
||||
async def main():
|
||||
db_file = '/tmp/fast_sync.db'
|
||||
if os.path.exists(db_file):
|
||||
os.remove(db_file)
|
||||
initializer(db_file)
|
||||
create_db()
|
||||
executor = ProcessPoolExecutor(
|
||||
4, initializer=initializer, initargs=(db_file,)
|
||||
)
|
||||
file_paths = glob(os.path.join(os.path.expanduser('~/.lbrycrd/blocks/'), 'blk*.dat'))
|
||||
file_paths.sort()
|
||||
total_blocks, total_txs = 0, 0
|
||||
start = time.perf_counter()
|
||||
for file_path, (blocks, txs) in zip(file_paths, executor.map(process_file, file_paths)):
|
||||
print(f"{file_path} {blocks}")
|
||||
total_blocks += blocks
|
||||
total_txs += txs
|
||||
print(f'blocks: {total_blocks} (txs: {total_txs}) in {time.perf_counter()-start}s')
|
||||
print('cleaning chain: set block heights and delete forks')
|
||||
#clean_chain()
|
||||
print(f'done in {time.perf_counter()-start}s')
|
||||
executor.shutdown(True)
|
||||
|
||||
if __name__ == '__main__':
|
||||
asyncio.run(main())
|
||||
|
|
@ -1,19 +1,276 @@
|
|||
import os.path
|
||||
import os
|
||||
import time
|
||||
from glob import glob
|
||||
import sqlite3
|
||||
import asyncio
|
||||
from lbry.blockchain import Lbrycrd
|
||||
from lbry.blockchain.sync import BlockSync
|
||||
import struct
|
||||
from contextvars import ContextVar
|
||||
from concurrent.futures import ProcessPoolExecutor
|
||||
from lbry.wallet.bcd_data_stream import BCDataStream
|
||||
from lbry.crypto.hash import double_sha256
|
||||
from lbry.wallet.transaction import Transaction
|
||||
from binascii import hexlify
|
||||
|
||||
|
||||
db = ContextVar('db')
|
||||
|
||||
|
||||
def initializer(_path):
|
||||
_db = sqlite3.connect(_path, isolation_level=None, uri=True, timeout=60.0*5)
|
||||
_db.row_factory = sqlite3.Row
|
||||
_db.executescript("""
|
||||
pragma journal_mode=wal;
|
||||
""")
|
||||
db.set(_db)
|
||||
|
||||
|
||||
def read_block(block: bytes):
|
||||
reader = BCDataStream()
|
||||
reader.data = block
|
||||
|
||||
|
||||
ZERO_BLOCK = bytes((0,)*32)
|
||||
|
||||
|
||||
def parse_header(header):
|
||||
version, = struct.unpack('<I', header[:4])
|
||||
timestamp, bits, nonce = struct.unpack('<III', header[100:112])
|
||||
return {
|
||||
'version': version,
|
||||
'block_hash': double_sha256(header),
|
||||
'prev_block_hash': header[4:36],
|
||||
'merkle_root': header[36:68],
|
||||
'claim_trie_root': header[68:100][::-1],
|
||||
'timestamp': timestamp,
|
||||
'bits': bits,
|
||||
'nonce': nonce,
|
||||
}
|
||||
|
||||
|
||||
def parse_txs(stream):
|
||||
tx_count = stream.read_compact_size()
|
||||
return [Transaction(position=i)._deserialize(stream) for i in range(tx_count)]
|
||||
|
||||
|
||||
def process_file(file_path):
|
||||
print(f'started: {file_path}')
|
||||
sql = db.get()
|
||||
stream = BCDataStream()
|
||||
stream.data = open(file_path, 'rb')
|
||||
blocks, txs, claims, supports, spends = [], [], [], [], []
|
||||
while stream.read_uint32() == 4054508794:
|
||||
block_size = stream.read_uint32()
|
||||
header = parse_header(stream.data.read(112))
|
||||
is_first_block = header['prev_block_hash'] == ZERO_BLOCK
|
||||
for tx in parse_txs(stream):
|
||||
txs.append((header['block_hash'], tx.position, tx.hash))
|
||||
for txi in tx.inputs:
|
||||
if not txi.is_coinbase:
|
||||
spends.append((header['block_hash'], tx.hash, txi.txo_ref.hash))
|
||||
for output in tx.outputs:
|
||||
try:
|
||||
if output.is_support:
|
||||
supports.append((
|
||||
header['block_hash'], tx.hash, output.ref.hash, output.claim_hash, output.amount
|
||||
))
|
||||
elif output.script.is_claim_name:
|
||||
claims.append((
|
||||
header['block_hash'], tx.hash, tx.position, output.ref.hash, output.claim_hash,
|
||||
output.claim_name, 1, output.amount, None, None
|
||||
))
|
||||
elif output.script.is_update_claim:
|
||||
claims.append((
|
||||
header['block_hash'], tx.hash, tx.position, output.ref.hash, output.claim_hash,
|
||||
output.claim_name, 2, output.amount, None, None
|
||||
))
|
||||
except:
|
||||
pass
|
||||
blocks.append((header['block_hash'], header['prev_block_hash'], 0 if is_first_block else None))
|
||||
|
||||
print(f'inserting sql in {file_path}')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into block values (?, ?, ?)", blocks)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into tx values (?, ?, ?)", txs)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into txi values (?, ?, ?)", spends)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into support values (?, ?, ?, ?, ?)", supports)
|
||||
sql.execute('commit;')
|
||||
|
||||
sql.execute('begin;')
|
||||
sql.executemany("insert into claim_history values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", claims)
|
||||
sql.execute('commit;')
|
||||
|
||||
return len(blocks), len(txs)
|
||||
|
||||
|
||||
def create_db():
|
||||
sql = db.get()
|
||||
sql.executescript("""
|
||||
create table block (
|
||||
block_hash bytes not null,
|
||||
previous_hash bytes not null,
|
||||
height int
|
||||
);
|
||||
create table tx (
|
||||
block_hash integer not null,
|
||||
position integer not null,
|
||||
tx_hash bytes not null
|
||||
);
|
||||
create table txi (
|
||||
block_hash bytes not null,
|
||||
tx_hash bytes not null,
|
||||
txo_hash bytes not null
|
||||
);
|
||||
create table claim (
|
||||
txo_hash bytes not null,
|
||||
claim_hash bytes not null,
|
||||
claim_name text not null,
|
||||
amount integer not null,
|
||||
height integer
|
||||
);
|
||||
create table claim_history (
|
||||
block_hash bytes not null,
|
||||
tx_hash bytes not null,
|
||||
tx_position integer not null,
|
||||
txo_hash bytes not null,
|
||||
claim_hash bytes not null,
|
||||
claim_name text not null,
|
||||
action integer not null,
|
||||
amount integer not null,
|
||||
height integer,
|
||||
is_spent bool
|
||||
);
|
||||
create table support (
|
||||
block_hash bytes not null,
|
||||
tx_hash bytes not null,
|
||||
txo_hash bytes not null,
|
||||
claim_hash bytes not null,
|
||||
amount integer not null
|
||||
);
|
||||
""")
|
||||
|
||||
|
||||
def clean_chain():
|
||||
sql = db.get()
|
||||
|
||||
print('traversing chain and setting height')
|
||||
sql.execute('begin;')
|
||||
|
||||
print(' + adding unique block (block_hash) index')
|
||||
sql.execute("create unique index block_hash_idx on block (block_hash)")
|
||||
|
||||
print(' + adding block (previous_hash) index')
|
||||
sql.execute("create index block_previous_block_hash_idx on block (previous_hash)")
|
||||
|
||||
print(' * setting block.height')
|
||||
sql.execute("""
|
||||
WITH RECURSIVE blocks(block_hash, previous_hash, height) AS (
|
||||
SELECT block_hash, previous_hash, height from block WHERE height = 0
|
||||
UNION
|
||||
SELECT block.block_hash, block.previous_hash, blocks.height+1
|
||||
FROM block, blocks
|
||||
WHERE block.previous_hash=blocks.block_hash
|
||||
)
|
||||
UPDATE block SET height=(SELECT height FROM blocks WHERE block.block_hash=blocks.block_hash)
|
||||
""")
|
||||
|
||||
print(' + adding block (height) index')
|
||||
sql.execute("create index block_height_idx on block (height)")
|
||||
|
||||
for table in ('tx', 'txi', 'claim_history', 'support'):
|
||||
print(f' + adding {table} (block_hash) index')
|
||||
sql.execute(f"create index {table}_block_hash_idx on {table} (block_hash)")
|
||||
|
||||
sql.execute('commit;')
|
||||
sql.execute('begin;')
|
||||
|
||||
print(' - deleting forks:')
|
||||
forks = sql.execute("""
|
||||
WITH RECURSIVE blocks(block_hash, previous_hash) AS (
|
||||
SELECT block_hash, previous_hash FROM block WHERE
|
||||
block_hash NOT IN (SELECT previous_hash FROM block) AND
|
||||
height != (SELECT MAX(height) FROM block)
|
||||
UNION
|
||||
SELECT block.block_hash, block.previous_hash FROM block, blocks WHERE
|
||||
block.block_hash=blocks.previous_hash AND
|
||||
(SELECT COUNT(*) FROM block forks WHERE forks.height=block.height) > 1
|
||||
)
|
||||
SELECT block_hash FROM blocks;
|
||||
""")
|
||||
for i, fork in enumerate(forks):
|
||||
sql.execute('DELETE FROM block WHERE block_hash = ?', (fork[0],))
|
||||
print(f' - block (fork:{i+1}): {hexlify(fork[0][::-1]).decode()}')
|
||||
deleted_stats = {}
|
||||
for table in ('tx', 'txi', 'claim_history', 'support'):
|
||||
deleted = sql.execute(f"DELETE FROM {table} WHERE block_hash = ?", (fork[0],)).rowcount
|
||||
if deleted > 0:
|
||||
deleted_stats[table] = deleted
|
||||
print(f' - {deleted_stats}')
|
||||
|
||||
sql.execute('commit;')
|
||||
sql.execute('begin;')
|
||||
|
||||
print(' + adding unique tx (tx_hash, block_hash) index')
|
||||
sql.execute("create unique index tx_hash_idx on tx (tx_hash, block_hash)")
|
||||
print(' + adding unique txi (txo_hash) index')
|
||||
sql.execute("create unique index txi_txo_hash_idx on txi (txo_hash)")
|
||||
|
||||
print('processing claim history & populating claim table')
|
||||
|
||||
print(' * setting claim_history.height and claim_history.is_spent')
|
||||
sql.execute("""
|
||||
UPDATE claim_history SET
|
||||
height = (SELECT height FROM tx JOIN block USING (block_hash) WHERE tx.tx_hash=claim_history.tx_hash),
|
||||
is_spent = COALESCE((SELECT 1 FROM txi WHERE txo_hash=claim_history.txo_hash), 0)
|
||||
""")
|
||||
|
||||
print(' + adding claim_history (claim_hash) index')
|
||||
sql.execute("create index claim_history_hash_idx on claim_history (claim_hash)")
|
||||
|
||||
print(' * populating claim table')
|
||||
sql.execute("""
|
||||
INSERT INTO claim
|
||||
SELECT txo_hash, claim_history.claim_hash, claim_name, amount, height FROM (
|
||||
SELECT claim_hash, is_spent FROM claim_history
|
||||
GROUP BY claim_hash HAVING MAX(height) AND MAX(tx_position)
|
||||
) AS latest_claim_state JOIN claim_history USING (claim_hash)
|
||||
WHERE latest_claim_state.is_spent=0;
|
||||
""")
|
||||
|
||||
sql.execute('commit;')
|
||||
|
||||
|
||||
async def main():
|
||||
chain = Lbrycrd(os.path.expanduser('~/.lbrycrd'), False)
|
||||
sync = BlockSync(chain, use_process_pool=True)
|
||||
if os.path.exists(sync.db.sync_db.db_file_path):
|
||||
os.remove(sync.db.sync_db.db_file_path)
|
||||
await sync.db.open()
|
||||
await sync.load_blocks()
|
||||
#await chain.stop(False)
|
||||
db_file = '/tmp/fast_sync.db'
|
||||
if os.path.exists(db_file):
|
||||
os.remove(db_file)
|
||||
initializer(db_file)
|
||||
create_db()
|
||||
executor = ProcessPoolExecutor(
|
||||
4, initializer=initializer, initargs=(db_file,)
|
||||
)
|
||||
file_paths = glob(os.path.join(os.path.expanduser('~/.lbrycrd/blocks/'), 'blk*.dat'))
|
||||
file_paths.sort()
|
||||
total_blocks, total_txs = 0, 0
|
||||
start = time.perf_counter()
|
||||
for file_path, (blocks, txs) in zip(file_paths, executor.map(process_file, file_paths)):
|
||||
print(f"{file_path} {blocks}")
|
||||
total_blocks += blocks
|
||||
total_txs += txs
|
||||
print(f'blocks: {total_blocks} (txs: {total_txs}) in {time.perf_counter()-start}s')
|
||||
print('cleaning chain: set block heights and delete forks')
|
||||
#clean_chain()
|
||||
print(f'done in {time.perf_counter()-start}s')
|
||||
executor.shutdown(True)
|
||||
|
||||
try:
|
||||
if __name__ == '__main__':
|
||||
asyncio.run(main())
|
||||
except KeyboardInterrupt:
|
||||
print('exiting')
|
||||
|
|
|
|||
Loading…
Reference in a new issue