def is_started(self, url=None):
if not url:
url = self.url
lwc = LedgerWebClient(url)
sta = None
try:
sta = lwc.get_status(verbose=False, timeout=2)
except MessageException as e:
print e.message
return False
if sta is not None:
return sta.get('Status', '') == 'started'
return False
def is_started(self, url=None):
if not url:
url = self.url
lwc = LedgerWebClient(url)
sta = None
try:
sta = lwc.get_status(verbose=False, timeout=2)
except MessageException as e:
print e.message
return False
if sta is not None:
return sta.get('Status', '') == 'started'
return False
def _get_quorum(gossiper, callback):
"""Attempts to connect gossiper to new available quorum nodes
Args:
gossiper (Node): The local node.
callback (function): The function to call once the quorum topology
update has completed.
"""
# find out how many we have and how many nodes we still need need
count = max(0, TargetConnectivity - len(gossiper.VotingQuorum.keys()))
# we have all the nodes we need; do next operation (the callback)
if count <= 0:
logger.debug('sufficiently connected via %s',
[str(x.Name) for x in gossiper.VotingQuorum.itervalues()])
callback()
return
# add nodes we don't have already, in random order
candidates = [
x for x in gossiper.quorum_list()
if gossiper.VotingQuorum.get(x.Identifier, None) is None
]
random.shuffle(candidates)
logger.debug('trying to increase working quorum by %d from candidates %s',
count, [str(x.Name) for x in candidates])
for nd in candidates:
lwc = LedgerWebClient('http://{0}:{1}'.format(nd.NetHost, nd.HttpPort))
try:
status = lwc.get_status(verbose=False, timeout=2)
except MessageException as e:
logger.debug(e.message)
continue
status = status.get('Status', '')
if status in [
'started', "transferring ledger",
"waiting for initial connections"
]:
# candidate node is live; add it
logger.debug('adding %s to quorum', nd.Name)
gossiper.add_quorum_node(nd)
if nd.Identifier not in gossiper.peer_id_list():
send_connection_request(gossiper, nd)
count -= 1
if count == 0:
logger.debug('now sufficiently connected')
break
# try again (or possibly execute the piggybacked callback)
reactor.callLater(TimeBetweenProbes, _get_quorum, gossiper, callback)
def _get_quorum(gossiper, callback):
"""Attempts to connect gossiper to new available quorum nodes
Args:
gossiper (Node): The local node.
callback (function): The function to call once the quorum topology
update has completed.
"""
# find out how many we have and how many nodes we still need need
count = max(0, TargetConnectivity - len(gossiper.VotingQuorum.keys()))
# we have all the nodes we need; do next operation (the callback)
if count <= 0:
logger.debug('sufficiently connected via %s',
[str(x.Name) for x in gossiper.VotingQuorum.itervalues()])
callback()
return
# add nodes we don't have already, in random order
candidates = [x for x in gossiper.quorum_list()
if gossiper.VotingQuorum.get(x.Identifier, None) is None]
random.shuffle(candidates)
logger.debug('trying to increase working quorum by %d from candidates %s',
count, [str(x.Name) for x in candidates])
for nd in candidates:
lwc = LedgerWebClient('http://{0}:{1}'.format(nd.NetHost,
nd.HttpPort))
try:
status = lwc.get_status(verbose=False, timeout=2)
except MessageException as e:
logger.debug(e.message)
continue
status = status.get('Status', '')
if status in ['started', "transferring ledger",
"waiting for initial connections"]:
# candidate node is live; add it
logger.debug('adding %s to quorum', nd.Name)
gossiper.add_quorum_node(nd)
if nd.Identifier not in gossiper.peer_id_list():
send_connection_request(gossiper, nd)
count -= 1
if count == 0:
logger.debug('now sufficiently connected')
break
# try again (or possibly execute the piggybacked callback)
reactor.callLater(TimeBetweenProbes, _get_quorum, gossiper, callback)