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improve leveldb caching

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This commit is contained in:
Jack Robison 2021-09-22 12:13:43 -04:00
parent 6ec70192fe
commit 02cf478d91
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GPG key ID: DF25C68FE0239BB2
3 changed files with 28 additions and 18 deletions
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10
lbry/wallet/server/block_processor.py
View file

@ -517,7 +517,7 @@ class BlockProcessor:
self.db.claim_to_txo[claim_hash] = ClaimToTXOValue(
tx_num, nout, root_tx_num, root_idx, txo.amount, channel_signature_is_valid, claim_name
)
self.db.txo_to_claim[(tx_num, nout)] = claim_hash
self.db.txo_to_claim[tx_num][nout] = claim_hash
pending = StagedClaimtrieItem(
claim_name, normalized_name, claim_hash, txo.amount, self.coin.get_expiration_height(height), tx_num, nout,
@ -577,14 +577,18 @@ class BlockProcessor:
if (txin_num, txin.prev_idx) in self.txo_to_claim:
spent = self.txo_to_claim[(txin_num, txin.prev_idx)]
else:
if (txin_num, txin.prev_idx) not in self.db.txo_to_claim: # txo is not a claim
if txin_num not in self.db.txo_to_claim or txin.prev_idx not in self.db.txo_to_claim[txin_num]:
# txo is not a claim
return False
spent_claim_hash_and_name = self.db.get_claim_from_txo(
txin_num, txin.prev_idx
)
assert spent_claim_hash_and_name is not None
spent = self._make_pending_claim_txo(spent_claim_hash_and_name.claim_hash)
self.db.claim_to_txo.pop(self.db.txo_to_claim.pop((txin_num, txin.prev_idx)))
claim_hash = self.db.txo_to_claim[txin_num].pop(txin.prev_idx)
if not self.db.txo_to_claim[txin_num]:
self.db.txo_to_claim.pop(txin_num)
self.db.claim_to_txo.pop(claim_hash)
if spent.reposted_claim_hash:
self.pending_reposted.add(spent.reposted_claim_hash)
if spent.signing_hash and spent.channel_signature_is_valid:

16
lbry/wallet/server/db/prefixes.py
View file

@ -43,7 +43,8 @@ class PrefixRow(metaclass=PrefixRowType):
self._op_stack = op_stack
def iterate(self, prefix=None, start=None, stop=None,
reverse: bool = False, include_key: bool = True, include_value: bool = True):
reverse: bool = False, include_key: bool = True, include_value: bool = True,
fill_cache: bool = True):
if not prefix and not start and not stop:
prefix = ()
if prefix is not None:
@ -54,19 +55,22 @@ class PrefixRow(metaclass=PrefixRowType):
stop = self.pack_partial_key(*stop)
if include_key and include_value:
for k, v in self._db.iterator(prefix=prefix, start=start, stop=stop, reverse=reverse):
for k, v in self._db.iterator(prefix=prefix, start=start, stop=stop, reverse=reverse,
fill_cache=fill_cache):
yield self.unpack_key(k), self.unpack_value(v)
elif include_key:
for k in self._db.iterator(prefix=prefix, start=start, stop=stop, reverse=reverse, include_value=False):
for k in self._db.iterator(prefix=prefix, start=start, stop=stop, reverse=reverse, include_value=False,
fill_cache=fill_cache):
yield self.unpack_key(k)
elif include_value:
for v in self._db.iterator(prefix=prefix, start=start, stop=stop, reverse=reverse, include_key=False):
for v in self._db.iterator(prefix=prefix, start=start, stop=stop, reverse=reverse, include_key=False,
fill_cache=fill_cache):
yield self.unpack_value(v)
else:
raise RuntimeError
def get(self, *key_args):
v = self._db.get(self.pack_key(*key_args))
def get(self, *key_args, fill_cache=True):
v = self._db.get(self.pack_key(*key_args), fill_cache=fill_cache)
if v:
return self.unpack_value(v)

20
lbry/wallet/server/leveldb.py
View file

@ -153,7 +153,7 @@ class LevelDB:
self.transaction_num_mapping = {}
self.claim_to_txo: Dict[bytes, ClaimToTXOValue] = {}
self.txo_to_claim: Dict[Tuple[int, int], bytes] = {}
self.txo_to_claim: DefaultDict[int, Dict[int, bytes]] = defaultdict(dict)
# Search index
self.search_index = SearchIndex(
@ -318,7 +318,7 @@ class LevelDB:
for k, v in self.db.iterator(prefix=prefix):
key = Prefixes.claim_short_id.unpack_key(k)
claim_txo = Prefixes.claim_short_id.unpack_value(v)
claim_hash = self.txo_to_claim[(claim_txo.tx_num, claim_txo.position)]
claim_hash = self.txo_to_claim[claim_txo.tx_num][claim_txo.position]
non_normalized_name = self.claim_to_txo.get(claim_hash).name
signature_is_valid = self.claim_to_txo.get(claim_hash).channel_signature_is_valid
return self._prepare_resolve_result(
@ -820,7 +820,8 @@ class LevelDB:
def get_counts():
return tuple(
Prefixes.tx_count.unpack_value(packed_tx_count).tx_count
for packed_tx_count in self.db.iterator(prefix=Prefixes.tx_count.prefix, include_key=False)
for packed_tx_count in self.db.iterator(prefix=Prefixes.tx_count.prefix, include_key=False,
fill_cache=False)
)
tx_counts = await asyncio.get_event_loop().run_in_executor(None, get_counts)
@ -835,7 +836,7 @@ class LevelDB:
async def _read_txids(self):
def get_txids():
return list(self.db.iterator(prefix=Prefixes.tx_hash.prefix, include_key=False))
return list(self.db.iterator(prefix=Prefixes.tx_hash.prefix, include_key=False, fill_cache=False))
start = time.perf_counter()
self.logger.info("loading txids")
@ -850,11 +851,10 @@ class LevelDB:
async def _read_claim_txos(self):
def read_claim_txos():
set_txo_to_claim = self.txo_to_claim.__setitem__
set_claim_to_txo = self.claim_to_txo.__setitem__
for k, v in self.prefix_db.claim_to_txo.iterate():
for k, v in self.prefix_db.claim_to_txo.iterate(fill_cache=False):
set_claim_to_txo(k.claim_hash, v)
set_txo_to_claim((v.tx_num, v.position), k.claim_hash)
self.txo_to_claim[v.tx_num][v.position] = k.claim_hash
self.claim_to_txo.clear()
self.txo_to_claim.clear()
@ -870,7 +870,8 @@ class LevelDB:
def get_headers():
return [
header for header in self.db.iterator(prefix=Prefixes.header.prefix, include_key=False)
header for header in self.db.iterator(prefix=Prefixes.header.prefix, include_key=False,
fill_cache=False)
]
headers = await asyncio.get_event_loop().run_in_executor(None, get_headers)
@ -1126,8 +1127,9 @@ class LevelDB:
tx = None
tx_height = -1
if tx_num is not None:
fill_cache = tx_num in self.txo_to_claim and len(self.txo_to_claim[tx_num]) > 0
tx_height = bisect_right(tx_counts, tx_num)
tx = tx_db_get(Prefixes.tx.pack_key(tx_hash_bytes))
tx = tx_db_get(Prefixes.tx.pack_key(tx_hash_bytes), fill_cache=fill_cache)
if tx_height == -1:
merkle = {
'block_height': -1