openstack/trove
Code Issues Proposed changes

Merge "Fix Cassandra cluster restart"

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Jenkins 2017-05-10 23:23:52 +00:00 committed by Gerrit Code Review
commit 012da9a334
1 changed files with 16 additions and 2 deletions
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18
trove/guestagent/datastore/experimental/cassandra/service.py
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@ -766,8 +766,8 @@ class CassandraAppStatus(service.BaseDbStatus):
def _get_actual_db_status(self): def _get_actual_db_status(self):
try: try:
self.client.execute('SELECT now() FROM system.local;') if self.client.local_node_is_up():
return rd_instance.ServiceStatuses.RUNNING return rd_instance.ServiceStatuses.RUNNING
except NoHostAvailable: except NoHostAvailable:
return rd_instance.ServiceStatuses.SHUTDOWN return rd_instance.ServiceStatuses.SHUTDOWN
except Exception: except Exception:
@ -1238,6 +1238,20 @@ class CassandraConnection(object):
return query.format(*identifiers) return query.format(*identifiers)
return query return query
def node_is_up(self, host_ip):
"""Test whether the Cassandra node located at the given IP is up.
"""
for host in self._cluster.metadata.all_hosts():
if host.address == host_ip:
return host.is_up
return False
def local_node_is_up(self):
"""Test whether Cassandra is up on the localhost.
"""
return (self.node_is_up('127.0.0.1') or
self.node_is_up(netutils.get_my_ipv4()))
def _connect(self): def _connect(self):
if not self._cluster.is_shutdown: if not self._cluster.is_shutdown:
LOG.debug("Connecting to a Cassandra cluster as '%s'." LOG.debug("Connecting to a Cassandra cluster as '%s'."