class StepNotReady(Exception):
pass
-def toposort(g, steps):
+def toposort(g, steps=None):
+ if (not steps):
+ keys = set(g.keys())
+ values = set({})
+ for v in g.values():
+ values=values | set(v)
+
+ steps=list(keys|values)
reverse = {}
for k,v in g.items():
marked.append(m)
except KeyError:
pass
- order.append(n)
+ if (n in steps):
+ order.append(n)
+
+ order.reverse()
+ order.extend(set(steps)-set(order))
return order
class PlanetStackObserver:
- sync_steps = [SyncNetworks,SyncNetworkSlivers,SyncSites,SyncSitePrivileges,SyncSlices,SyncSliceMemberships,SyncSlivers,SyncSliverIps]
+ sync_steps = [SyncNetworks,SyncNetworkSlivers,SyncSites,SyncSitePrivileges,SyncSlices,SyncSliceMemberships,SyncSlivers,SyncSliverIps,SyncExternalRoutes,SyncUsers,SyncRoles,SyncNodes,SyncImages,GarbageCollector]
def __init__(self):
# The Condition object that gets signalled by Feefie events
+ self.step_lookup = {}
self.load_sync_steps()
self.event_cond = threading.Condition()
self.driver = OpenStackDriver()
self.event_cond.release()
def load_sync_steps(self):
- dep_path = Config().observer_backend_dependency_graph
+ dep_path = Config().observer_dependency_graph
try:
# This contains dependencies between records, not sync steps
self.model_dependency_graph = json.loads(open(dep_path).read())
provides_dict = {}
for s in self.sync_steps:
+ self.step_lookup[s.__name__] = s
for m in s.provides:
try:
provides_dict[m.__name__].append(s.__name__)
dependency_graph = step_graph
- self.ordered_steps = toposort(dependency_graph, self.sync_steps)
+ self.ordered_steps = toposort(dependency_graph, map(lambda s:s.__name__,self.sync_steps))
print "Order of steps=",self.ordered_steps
self.load_run_times()
- def check_duration(self):
+ def check_duration(self, step, duration):
try:
- if (duration > S.deadline):
- logger.info('Sync step %s missed deadline, took %.2f seconds'%(S.name,duration))
+ if (duration > step.deadline):
+ logger.info('Sync step %s missed deadline, took %.2f seconds'%(step.name,duration))
except AttributeError:
# S doesn't have a deadline
pass
def update_run_time(self, step):
- self.last_run_times[step.name]=time.time()
+ self.last_run_times[step.__name__]=time.time()
def check_schedule(self, step):
- time_since_last_run = time.time() - self.last_run_times[step.name]
+ time_since_last_run = time.time() - self.last_run_times.get(step.__name__, 0)
try:
if (time_since_last_run < step.requested_interval):
raise StepNotReady
except AttributeError:
- logger.info('Step %s does not have requested_interval set'%step.name)
+ logger.info('Step %s does not have requested_interval set'%step.__name__)
raise StepNotReady
def load_run_times(self):
self.last_run_times[e]=0
-
def save_run_times(self):
run_times = json.dumps(self.last_run_times)
open('/tmp/observer_run_times','w').write(run_times)
def check_class_dependency(self, step, failed_steps):
+ step.dependenices = []
+ for obj in step.provides:
+ step.dependenices.extend(self.model_dependency_graph.get(obj.__name__, []))
for failed_step in failed_steps:
- if (failed_step in self.dependency_graph[step.name]):
+ if (failed_step in step.dependencies):
raise StepNotReady
def run(self):
if not self.driver.enabled or not self.driver.has_openstack:
return
-
while True:
try:
logger.info('Waiting for event')
tBeforeWait = time.time()
- self.wait_for_event(timeout=300)
+ self.wait_for_event(timeout=30)
logger.info('Observer woke up')
# Set of whole steps that failed
failed_step_objects = []
for S in self.ordered_steps:
+ step = self.step_lookup[S]
start_time=time.time()
- sync_step = S(driver=self.driver)
- sync_step.dependencies = self.dependencies[sync_step.name]
+ sync_step = step(driver=self.driver)
+ sync_step.__name__ = step.__name__
+ sync_step.dependencies = []
+ try:
+ mlist = sync_step.provides
+
+ for m in mlist:
+ sync_step.dependencies.extend(self.model_dependency_graph[m.__name__])
+ except KeyError:
+ pass
sync_step.debug_mode = debug_mode
should_run = False
self.check_schedule(sync_step) # dont run sync_network_routes if time since last run < 1 hour
should_run = True
except StepNotReady:
- logging.info('Step not ready: %s'%sync_step.name)
- failed_steps.add(sync_step)
+ logging.info('Step not ready: %s'%sync_step.__name__)
+ failed_steps.append(sync_step)
except:
- failed_steps.add(sync_step)
+ failed_steps.append(sync_step)
if (should_run):
try:
duration=time.time() - start_time
# ********* This is the actual sync step
+ #import pdb
+ #pdb.set_trace()
failed_objects = sync_step(failed=failed_step_objects)
- check_deadline(sync_step, duration)
- failed_step_objects.extend(failed_objects)
+ self.check_duration(sync_step, duration)
+ if failed_objects:
+ failed_step_objects.extend(failed_objects)
self.update_run_time(sync_step)
except:
- failed_steps.add(S)
+ raise
+ failed_steps.append(S)
self.save_run_times()
except:
logger.log_exc("Exception in observer run loop")
git://git.onelab.eu / plstackapi.git / blobdiff