def _run(self):
"""Make sure that the status is sane and start a loop."""
if len(self.name) == 0:
raise RuntimeError, 'cluster name must be non-empty'
# Make a listening port
handler = identification.IdentificationHandler(self)
self.listening_conn = ListeningConnection(self, handler, self.server)
self.server = self.listening_conn.getAddress()
# Connect to a primary master node, verify data, and
# start the operation. This cycle will be executed permanently,
# until the user explicitly requests a shutdown.
self.operational = False
while True:
self.cluster_state = None
if self.master_node is None:
# look for the primary master
self.connectToPrimary()
self.checker = Checker(self)
self.replicator = Replicator(self)
self.tm = TransactionManager(self)
try:
self.initialize()
self.doOperation()
raise RuntimeError, 'should not reach here'
except StoppedOperation, msg:
logging.error('operation stopped: %s', msg)
except PrimaryFailure, msg:
logging.error('primary master is down: %s', msg)
def getLoopbackConnection(self):
app = MasterApplication(address=BIND,
getSSL=NEOCluster.SSL, getReplicas=0, getPartitions=1)
try:
handler = EventHandler(app)
app.listening_conn = ListeningConnection(app, handler, app.server)
yield ClientConnection(app, handler, app.nm.createMaster(
address=app.listening_conn.getAddress(), uuid=app.uuid))
finally:
app.close()
def getLoopbackConnection(self):
app = MasterApplication(getSSL=NEOCluster.SSL,
getReplicas=0,
getPartitions=1)
handler = EventHandler(app)
app.listening_conn = ListeningConnection(app, handler, app.server)
node = app.nm.createMaster(address=app.listening_conn.getAddress(),
uuid=app.uuid)
conn = ClientConnection.__new__(ClientConnection)
def reset():
conn.__dict__.clear()
conn.__init__(app, handler, node)
conn.reset = reset
reset()
return conn
def _run(self):
"""Make sure that the status is sane and start a loop."""
if len(self.name) == 0:
raise RuntimeError, 'cluster name must be non-empty'
# Make a listening port.
handler = AdminEventHandler(self)
self.listening_conn = ListeningConnection(self, handler, self.server)
while self.cluster_state != ClusterStates.STOPPING:
self.connectToPrimary()
try:
while True:
self.em.poll(1)
except PrimaryFailure:
logging.error('primary master is down')
self.listening_conn.close()
while not self.em.isIdle():
self.em.poll(1)
def _run(self):
"""Make sure that the status is sane and start a loop."""
# Make a listening port.
self.listening_conn = ListeningConnection(self, None, self.server)
# Start a normal operation.
while self.cluster_state != ClusterStates.STOPPING:
# (Re)elect a new primary master.
self.primary = not self.nm.getMasterList()
if not self.primary:
self.electPrimary()
try:
if self.primary:
self.playPrimaryRole()
else:
self.playSecondaryRole()
raise RuntimeError, 'should not reach here'
except (ElectionFailure, PrimaryFailure):
# Forget all connections.
for conn in self.em.getClientList():
conn.close()
def _run(self):
self.listening_conn = ListeningConnection(self, None, self.server)
while True:
self.playPrimaryRole()
self.playSecondaryRole()
