import ast
import hashlib
from json import dumps, loads
-import leveldb
import os
from Queue import Queue
import random
self.mempool_lock = threading.Lock()
self.address_queue = Queue()
- self.dbpath = config.get('leveldb', 'path')
+
+ try:
+ self.use_plyvel = config.getboolean('leveldb', 'use_plyvel')
+ except:
+ self.use_plyvel = False
+ print_log('use_plyvel:', self.use_plyvel)
+
+ # don't use the same database for plyvel, because python-leveldb uses snappy compression
+ self.dbpath = config.get('leveldb', 'path_plyvel' if self.use_plyvel else 'path')
+
self.pruning_limit = config.getint('leveldb', 'pruning_limit')
self.db_version = 1 # increase this when database needs to be updated
self.dblock = threading.Lock()
try:
- self.db = leveldb.LevelDB(self.dbpath, paranoid_checks=True)
+ if self.use_plyvel:
+ import plyvel
+ self.db = plyvel.DB(self.dbpath, create_if_missing=True, paranoid_checks=None, compression=None)
+ else:
+ import leveldb
+ self.db = leveldb.LevelDB(self.dbpath, paranoid_checks=False)
except:
traceback.print_exc(file=sys.stdout)
self.shared.stop()
self.sent_header = None
try:
- hist = self.deserialize(self.db.Get('height'))
+ hist = self.deserialize(self.db_get('height'))
self.last_hash, self.height, db_version = hist[0]
print_log("Database version", self.db_version)
print_log("Blockchain height", self.height)
threading.Timer(10, self.main_iteration).start()
+
+ def db_get(self, key):
+ if self.use_plyvel:
+ return self.db.get(key)
+ else:
+ try:
+ return self.db.Get(key)
+ except KeyError:
+ return None
+
+ def batch_put(self, batch, key, value):
+ if self.use_plyvel:
+ batch.put(key, value)
+ else:
+ batch.Put(key, value)
+
+ def batch_delete(self, batch, key):
+ if self.use_plyvel:
+ batch.delete(key)
+ else:
+ batch.Delete(key)
+
+ def batch_write(self, batch, sync):
+ if self.use_plyvel:
+ batch.write()#, sync=sync)
+ else:
+ self.db.Write(batch, sync=sync)
+
+
def bitcoind(self, method, params=[]):
postdata = dumps({"method": method, 'params': params, 'id': 'jsonrpc'})
try:
with self.dblock:
try:
- hist = self.deserialize(self.db.Get(addr))
+ hist = self.deserialize(self.db_get(str((addr))))
is_known = True
except:
+ self.shared.stop()
+ raise
+ if hist:
+ is_known = True
+ else:
hist = []
is_known = False
return tx_hashes, txdict
def get_undo_info(self, height):
- s = self.db.Get("undo%d" % (height % 100))
+ s = self.db_get("undo%d" % (height % 100))
return eval(s)
def write_undo_info(self, batch, height, undo_info):
if self.is_test or height > self.bitcoind_height - 100:
- batch.Put("undo%d" % (height % 100), repr(undo_info))
+ self.batch_put(batch, "undo%d" % (height % 100), repr(undo_info))
def import_block(self, block, block_hash, block_height, sync, revert=False):
self.batch_list = {} # address -> history
self.batch_txio = {} # transaction i/o -> address
- block_inputs = []
- block_outputs = []
- addr_to_read = []
+ block_inputs = set([])
+ block_outputs = set([])
+ addr_to_read = set([])
# deserialize transactions
t0 = time.time()
for tx in txdict.values():
for x in tx.get('inputs'):
txi = (x.get('prevout_hash') + int_to_hex(x.get('prevout_n'), 4)).decode('hex')
- block_inputs.append(txi)
+ block_inputs.add(txi)
- block_inputs.sort()
- for txi in block_inputs:
+ #block_inputs.sort()
+ for txi in sorted(block_inputs):
try:
- addr = self.db.Get(txi)
- except KeyError:
- # the input could come from the same block
- continue
+ addr = self.db_get(txi)
+ if addr is None:
+ # the input could come from the same block
+ continue
except:
traceback.print_exc(file=sys.stdout)
self.shared.stop()
raise
self.batch_txio[txi] = addr
- addr_to_read.append(addr)
+ addr_to_read.add(addr)
else:
for txid, tx in txdict.items():
for x in tx.get('outputs'):
txo = (txid + int_to_hex(x.get('index'), 4)).decode('hex')
- block_outputs.append(txo)
- addr_to_read.append( x.get('address') )
+ block_outputs.add(txo)
+ addr_to_read.add( x.get('address') )
undo = undo_info.get(txid)
for i, x in enumerate(tx.get('inputs')):
addr = undo['prev_addr'][i]
- addr_to_read.append(addr)
-
-
+ addr_to_read.add(addr)
+ #time spent reading txio
+ t000 = time.time()
# read histories of addresses
for txid, tx in txdict.items():
for x in tx.get('outputs'):
- addr_to_read.append(x.get('address'))
+ addr_to_read.add(x.get('address'))
- addr_to_read.sort()
- for addr in addr_to_read:
+ #addr_to_read.sort()
+ for addr in sorted(addr_to_read):
try:
- self.batch_list[addr] = self.db.Get(addr)
- except KeyError:
- self.batch_list[addr] = ''
+ h = self.db_get(addr)
+ self.batch_list[addr] = '' if h is None else h
except:
+ print "db get error", addr
traceback.print_exc(file=sys.stdout)
self.shared.stop()
raise
max_addr = ''
t2 = time.time()
- batch = leveldb.WriteBatch()
+ if self.use_plyvel:
+ batch = self.db.write_batch()
+ else:
+ import leveldb
+ batch = leveldb.WriteBatch()
+
for addr, serialized_hist in self.batch_list.items():
- batch.Put(addr, serialized_hist)
+ self.batch_put(batch, addr, serialized_hist)
l = len(serialized_hist)/80
if l > max_len:
max_len = l
if not revert:
# add new created outputs
for txio, addr in self.batch_txio.items():
- batch.Put(txio, addr)
+ self.batch_put(batch, txio, addr)
# delete spent inputs
for txi in block_inputs:
- batch.Delete(txi)
+ self.batch_delete(batch, txi)
# add undo info
self.write_undo_info(batch, block_height, undo_info)
else:
# restore spent inputs
for txio, addr in self.batch_txio.items():
# print "restoring spent input", repr(txio)
- batch.Put(txio, addr)
+ self.batch_put(batch, txio, addr)
# delete spent outputs
for txo in block_outputs:
- batch.Delete(txo)
+ self.batch_delete(batch, txo)
# add the max
- batch.Put('height', self.serialize([(block_hash, block_height, self.db_version)]))
+ self.batch_put(batch, 'height', self.serialize([(block_hash, block_height, self.db_version)]))
# actual write
- self.db.Write(batch, sync=sync)
+ self.batch_write(batch, sync)
t3 = time.time()
- if t3 - t0 > 10 and not sync:
- print_log("block", block_height,
- "parse:%0.2f " % (t00 - t0),
- "read:%0.2f " % (t1 - t00),
- "proc:%.2f " % (t2-t1),
+ if t3 - t0 > 0 and not sync:
+ print_log("block %d "%block_height,
+ "total:%0.2f " % (t3 - t0),
+ #"parse:%0.2f " % (t00 - t0),
+ "read_txio[%4d]:%0.2f " % (len(block_inputs), t000 - t00),
+ "read_addr[%4d]:%0.2f " % (len(addr_to_read), t1 - t000),
+ #"proc:%.2f " % (t2-t1),
"write:%.2f " % (t3-t2),
"max:", max_len, max_addr)
self.header = self.block2header(self.bitcoind('getblock', [self.last_hash]))
+ if self.shared.stopped() and self.use_plyvel:
+ print_log( "closing database" )
+ self.db.close()
+
def memorypool_update(self):
mempool_hashes = set(self.bitcoind('getrawmempool'))
def main_iteration(self):
if self.shared.stopped():
print_log("blockchain processor terminating")
+ if self.use_plyvel:
+ self.db.close()
return
with self.dblock:
git://git.novaco.in / electrum-server.git / commitdiff