def test_clean_stale_with_threads_active(self):
"""verify locks for multiple threads are cleaned up """
# create sentinels for four threads in our process, and a 'dead'
# process
sentinel1 = self._create_sentinel(self.hostname, self.pid, 'Default-1')
sentinel2 = self._create_sentinel(self.hostname, self.pid, 'Default-2')
sentinel3 = self._create_sentinel(self.hostname, self.pid, 'Default-3')
sentinel4 = self._create_sentinel(self.hostname, self.pid, 'Default-4')
sentinel5 = self._create_sentinel(self.hostname, self.dead_pid,
'Default-1')
os.link(sentinel1, self.lock_file)
utils.cleanup_file_locks()
self.assertTrue(os.path.exists(sentinel1))
self.assertTrue(os.path.exists(sentinel2))
self.assertTrue(os.path.exists(sentinel3))
self.assertTrue(os.path.exists(sentinel4))
self.assertTrue(os.path.exists(self.lock_file))
self.assertFalse(os.path.exists(sentinel5))
os.unlink(sentinel1)
os.unlink(sentinel2)
os.unlink(sentinel3)
os.unlink(sentinel4)
os.unlink(self.lock_file)
def test_clean_stale_with_threads_active(self):
"""verify locks for multiple threads are cleaned up """
# create sentinels for four threads in our process, and a 'dead'
# process
sentinel1 = self._create_sentinel(self.hostname, self.pid, 'Default-1')
sentinel2 = self._create_sentinel(self.hostname, self.pid, 'Default-2')
sentinel3 = self._create_sentinel(self.hostname, self.pid, 'Default-3')
sentinel4 = self._create_sentinel(self.hostname, self.pid, 'Default-4')
sentinel5 = self._create_sentinel(self.hostname, self.dead_pid,
'Default-1')
os.link(sentinel1, self.lock_file)
utils.cleanup_file_locks()
self.assertTrue(os.path.exists(sentinel1))
self.assertTrue(os.path.exists(sentinel2))
self.assertTrue(os.path.exists(sentinel3))
self.assertTrue(os.path.exists(sentinel4))
self.assertTrue(os.path.exists(self.lock_file))
self.assertFalse(os.path.exists(sentinel5))
os.unlink(sentinel1)
os.unlink(sentinel2)
os.unlink(sentinel3)
os.unlink(sentinel4)
os.unlink(self.lock_file)
def main():
"""Main loop."""
options, args = parse_options()
verbose = options.verbose
if verbose:
LOG.logger.setLevel(logging.DEBUG)
else:
LOG.logger.setLevel(logging.INFO)
LOG.info('Cleaning stale locks from %s' % FLAGS.lock_path)
utils.cleanup_file_locks()
LOG.info('Finished')
def start(self):
vcs_string = version.version_string_with_vcs()
LOG.audit(_('Starting %(topic)s node (version %(vcs_string)s)'), {
'topic': self.topic,
'vcs_string': vcs_string
})
utils.cleanup_file_locks()
rpc.register_opts(FLAGS)
self.manager.init_host()
self.model_disconnected = False
ctxt = context.get_admin_context()
try:
service_ref = db.service_get_by_args(ctxt, self.host, self.binary)
self.service_id = service_ref['id']
except exception.NotFound:
self._create_service_ref(ctxt)
if 'nova-compute' == self.binary:
self.manager.update_available_resource(ctxt)
self.conn = rpc.create_connection(new=True)
LOG.debug(
_("Creating Consumer connection for Service %s") % self.topic)
rpc_dispatcher = self.manager.create_rpc_dispatcher()
# Share this same connection for these Consumers
self.conn.create_consumer(self.topic, rpc_dispatcher, fanout=False)
node_topic = '%s.%s' % (self.topic, self.host)
self.conn.create_consumer(node_topic, rpc_dispatcher, fanout=False)
self.conn.create_consumer(self.topic, rpc_dispatcher, fanout=True)
# Consume from all consumers in a thread
self.conn.consume_in_thread()
if self.report_interval:
pulse = utils.LoopingCall(self.report_state)
pulse.start(interval=self.report_interval,
initial_delay=self.report_interval)
self.timers.append(pulse)
if self.periodic_interval:
if self.periodic_fuzzy_delay:
initial_delay = random.randint(0, self.periodic_fuzzy_delay)
else:
initial_delay = None
periodic = utils.LoopingCall(self.periodic_tasks)
periodic.start(interval=self.periodic_interval,
initial_delay=initial_delay)
self.timers.append(periodic)
def main():
"""Main loop."""
options, args = parse_options()
verbose = options.verbose
if verbose:
LOG.logger.setLevel(logging.DEBUG)
else:
LOG.logger.setLevel(logging.INFO)
LOG.info('Cleaning stale locks from %s' % FLAGS.lock_path)
utils.cleanup_file_locks()
LOG.info('Finished')
def start(self):
vcs_string = version.version_string_with_vcs()
LOG.audit(_('Starting %(topic)s node (version %(vcs_string)s)'),
{'topic': self.topic, 'vcs_string': vcs_string})
utils.cleanup_file_locks()
rpc.register_opts(FLAGS)
self.manager.init_host()
self.model_disconnected = False
ctxt = context.get_admin_context()
try:
service_ref = db.service_get_by_args(ctxt,
self.host,
self.binary)
self.service_id = service_ref['id']
except exception.NotFound:
self._create_service_ref(ctxt)
if 'nova-compute' == self.binary:
self.manager.update_available_resource(ctxt)
self.conn = rpc.create_connection(new=True)
LOG.debug(_("Creating Consumer connection for Service %s") %
self.topic)
rpc_dispatcher = self.manager.create_rpc_dispatcher()
# Share this same connection for these Consumers
self.conn.create_consumer(self.topic, rpc_dispatcher, fanout=False)
node_topic = '%s.%s' % (self.topic, self.host)
self.conn.create_consumer(node_topic, rpc_dispatcher, fanout=False)
self.conn.create_consumer(self.topic, rpc_dispatcher, fanout=True)
# Consume from all consumers in a thread
self.conn.consume_in_thread()
if self.report_interval:
pulse = utils.LoopingCall(self.report_state)
pulse.start(interval=self.report_interval,
initial_delay=self.report_interval)
self.timers.append(pulse)
if self.periodic_interval:
if self.periodic_fuzzy_delay:
initial_delay = random.randint(0, self.periodic_fuzzy_delay)
else:
initial_delay = None
periodic = utils.LoopingCall(self.periodic_tasks)
periodic.start(interval=self.periodic_interval,
initial_delay=initial_delay)
self.timers.append(periodic)
def start(self):
"""Start serving this service using loaded configuration.
Also, retrieve updated port number in case '0' was passed in, which
indicates a random port should be used.
:returns: None
"""
utils.cleanup_file_locks()
if self.manager:
self.manager.init_host()
self.server.start()
def start(self):
"""Start serving this service using loaded configuration.
Also, retrieve updated port number in case '0' was passed in, which
indicates a random port should be used.
:returns: None
"""
utils.cleanup_file_locks()
if self.manager:
self.manager.init_host()
self.server.start()
def test_nested_external_fails(self):
"""We can not nest external syncs"""
@utils.synchronized('testlock1', external=True)
def outer_lock():
@utils.synchronized('testlock2', external=True)
def inner_lock():
pass
inner_lock()
try:
self.assertRaises(lockfile.NotMyLock, outer_lock)
finally:
utils.cleanup_file_locks()
def test_nested_external_fails(self):
"""We can not nest external syncs"""
@utils.synchronized('testlock1', external=True)
def outer_lock():
@utils.synchronized('testlock2', external=True)
def inner_lock():
pass
inner_lock()
try:
self.assertRaises(lockfile.NotMyLock, outer_lock)
finally:
utils.cleanup_file_locks()
def test_clean_stale_locks(self):
"""verify locks for dead processes are cleaned up"""
# create sentinels for two processes, us and a 'dead' one
# no actve lock
sentinel1 = self._create_sentinel(self.hostname, self.pid)
sentinel2 = self._create_sentinel(self.hostname, self.dead_pid)
utils.cleanup_file_locks()
self.assertTrue(os.path.exists(sentinel1))
self.assertFalse(os.path.exists(self.lock_file))
self.assertFalse(os.path.exists(sentinel2))
os.unlink(sentinel1)
def test_clean_stale_locks(self):
"""verify locks for dead processes are cleaned up"""
# create sentinels for two processes, us and a 'dead' one
# no active lock
sentinel1 = self._create_sentinel(self.hostname, self.pid)
sentinel2 = self._create_sentinel(self.hostname, self.dead_pid)
utils.cleanup_file_locks()
self.assertTrue(os.path.exists(sentinel1))
self.assertFalse(os.path.exists(self.lock_file))
self.assertFalse(os.path.exists(sentinel2))
os.unlink(sentinel1)
def test_clean_bogus_lockfiles(self):
"""verify lockfiles are cleaned """
lock1 = os.path.join(FLAGS.lock_path, 'nova-testlock1.lock')
lock2 = os.path.join(FLAGS.lock_path, 'nova-testlock2.lock')
lock3 = os.path.join(FLAGS.lock_path, 'testlock3.lock')
open(lock1, 'wb').close()
open(lock2, 'wb').close()
open(lock3, 'wb').close()
utils.cleanup_file_locks()
self.assertFalse(os.path.exists(lock1))
self.assertFalse(os.path.exists(lock2))
self.assertTrue(os.path.exists(lock3))
os.unlink(lock3)
def test_clean_bogus_lockfiles(self):
"""verify lockfiles are cleaned """
lock1 = os.path.join(FLAGS.lock_path, 'nova-testlock1.lock')
lock2 = os.path.join(FLAGS.lock_path, 'nova-testlock2.lock')
lock3 = os.path.join(FLAGS.lock_path, 'testlock3.lock')
open(lock1, 'wb').close()
open(lock2, 'wb').close()
open(lock3, 'wb').close()
utils.cleanup_file_locks()
self.assertFalse(os.path.exists(lock1))
self.assertFalse(os.path.exists(lock2))
self.assertTrue(os.path.exists(lock3))
os.unlink(lock3)
