def __init__(self):
self._complete = gevent.event.Event()
self._rpc_thread = RpcThread(self)
self._discovery_thread = TopLevelEvents(self)
self._process_monitor = ProcessMonitorThread()
db_path = config.get('cthulhu', 'db_path')
if sqlalchemy is not None and db_path:
try:
# Prepare persistence
engine = create_engine(config.get('cthulhu',
'db_path')) # noqa
Session.configure(bind=engine)
self.persister = Persister()
except sqlalchemy.exc.ArgumentError as e:
log.error("Database error: %s" % e)
raise
else:
class NullPersister(object):
def start(self):
pass
def stop(self):
pass
def join(self):
pass
def __getattribute__(self, item):
if item.startswith('_'):
return object.__getattribute__(self, item)
else:
try:
return object.__getattribute__(self, item)
except AttributeError:
def blackhole(*args, **kwargs):
pass
return blackhole
self.persister = NullPersister()
# Remote operations
self.requests = RequestCollection(self)
self._request_ticker = Ticker(request_collection.TICK_PERIOD,
lambda: self.requests.tick())
# FSID to ClusterMonitor
self.clusters = {}
# Generate events on state changes
self.eventer = Eventer(self)
# Handle all ceph/server messages
self.servers = ServerMonitor(self.persister, self.eventer,
self.requests)
def __init__(self, fsid, cluster_name, notifier, persister, servers, eventer):
super(ClusterMonitor, self).__init__()
self.fsid = fsid
self.name = cluster_name
self.update_time = datetime.datetime.utcnow().replace(tzinfo=utc)
self._notifier = notifier
self._persister = persister
self._servers = servers
self._eventer = eventer
# Which mon we are currently using for running requests,
# identified by minion ID
self._favorite_mon = None
self._last_heartbeat = {}
self._complete = gevent.event.Event()
self.done = gevent.event.Event()
self._sync_objects = SyncObjects(self.name)
self._requests = RequestCollection(self._sync_objects, eventer)
self._derived_objects = DerivedObjects()
self._request_factories = {
OSD: OsdRequestFactory,
POOL: PoolRequestFactory
}
self._plugin_monitor = PluginMonitor(servers)
self._ready = gevent.event.Event()
self._request_ticker = Ticker(request_collection.TICK_PERIOD, lambda: self._requests.tick())
