class NoOpDriver:
def __init__(self):
self.enabled = True
+ self.dependency_graph = None
class PlanetStackObserver:
#sync_steps = [SyncNetworks,SyncNetworkSlivers,SyncSites,SyncSitePrivileges,SyncSlices,SyncSliceMemberships,SyncSlivers,SyncSliverIps,SyncExternalRoutes,SyncUsers,SyncRoles,SyncNodes,SyncImages,GarbageCollector]
sync_steps = []
+ STEP_STATUS_WORKING=1
+ STEP_STATUS_OK=2
+ STEP_STATUS_KO=3
+
def __init__(self):
# The Condition object that gets signalled by Feefie events
self.step_lookup = {}
pass
# no dependencies, pass
- dependency_graph = step_graph
+ self.dependency_graph = step_graph
- self.ordered_steps = toposort(dependency_graph, map(lambda s:s.__name__,self.sync_steps))
+ self.ordered_steps = toposort(self.dependency_graph, map(lambda s:s.__name__,self.sync_steps))
print "Order of steps=",self.ordered_steps
self.load_run_times()
if (failed_step in step.dependencies):
raise StepNotReady
- def sync(self, ordered_steps, error_mapper, deletion):
- # Set of whole steps that failed
- failed_steps = []
+ def sync(self, S, deletion):
+ step = self.step_lookup[S]
+ start_time=time.time()
+
+ # Wait for step dependencies to be met
+ deps = self.dependency_graph[S]
+ for d in deps:
+ cond = self.step_conditions[d]
+ acquire(cond)
+ if (self.step_status is STEP_STATUS_WORKING):
+ cond.wait()
+ cond.release()
+
+ sync_step = step(driver=self.driver,error_map=error_mapper)
+ 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
- # Set of individual objects within steps that failed
- failed_step_objects = set()
+ should_run = False
+ try:
+ # Various checks that decide whether
+ # this step runs or not
+ self.check_class_dependency(sync_step, self.failed_steps) # dont run Slices if Sites failed
+ self.check_schedule(sync_step, deletion) # 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__)
+ self.failed_steps.append(sync_step)
+ except Exception,e:
+ logging.error('%r',e)
+ logger.log_exc("sync step failed: %r. Deletion: %r"%(sync_step,deletion))
+ self.failed_steps.append(sync_step)
- for S in ordered_steps:
- step = self.step_lookup[S]
- start_time=time.time()
-
- sync_step = step(driver=self.driver,error_map=error_mapper)
- sync_step.__name__ = step.__name__
- sync_step.dependencies = []
+ if (should_run):
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
+ duration=time.time() - start_time
- should_run = False
- try:
- # Various checks that decide whether
- # this step runs or not
- self.check_class_dependency(sync_step, failed_steps) # dont run Slices if Sites failed
- self.check_schedule(sync_step, deletion) # 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.append(sync_step)
- except Exception,e:
- logging.error('%r',e)
- logger.log_exc("sync step failed: %r. Deletion: %r"%(sync_step,deletion))
- failed_steps.append(sync_step)
+ logger.info('Executing step %s' % sync_step.__name__)
- if (should_run):
- try:
- duration=time.time() - start_time
+ failed_objects = sync_step(failed=list(self.failed_step_objects), deletion=deletion)
+
+ self.check_duration(sync_step, duration)
- logger.info('Executing step %s' % sync_step.__name__)
+ if failed_objects:
+ self.failed_step_objects.update(failed_objects)
- # ********* This is the actual sync step
- #import pdb
- #pdb.set_trace()
- failed_objects = sync_step(failed=list(failed_step_objects), deletion=deletion)
+ my_status = STEP_STATUS_OK
+ self.update_run_time(sync_step,deletion)
+ except Exception,e:
+ logging.error('Model step failed. This seems like a misconfiguration or bug: %r. This error will not be relayed to the user!',e)
+ logger.log_exc(e)
+ self.failed_steps.append(S)
+ my_status = STEP_STATUS_KO
+ else:
+ my_status = STEP_STATUS_OK
+
+ try:
+ my_cond = self.step_conditions[S]
+ my_cond.acquire()
+ self.step_status[S]=my_status
+ my_cond.notify_all()
+ my_cond.release()
+ except:
+ pass
+ if (self.step_conditions.has_key(S)):
- self.check_duration(sync_step, duration)
- if failed_objects:
- failed_step_objects.update(failed_objects)
- self.update_run_time(sync_step,deletion)
- except Exception,e:
- logging.error('Model step failed. This seems like a misconfiguration or bug: %r. This error will not be relayed to the user!',e)
- logger.log_exc(e)
- failed_steps.append(S)
def run(self):
if not self.driver.enabled:
return
+
if (self.driver_kind=="openstack") and (not self.driver.has_openstack):
return
while True:
try:
error_map_file = getattr(Config(), "error_map_path", "/opt/planetstack/error_map.txt")
- error_mapper = ErrorMapper(error_map_file)
+ self.error_mapper = ErrorMapper(error_map_file)
+
+ # Set of whole steps that failed
+ self.failed_steps = []
+
+ # Set of individual objects within steps that failed
+ self.failed_step_objects = set()
+
+ # Set up conditions and step status
+ # This is needed for steps to run in parallel
+ # while obeying dependencies.
+
+ providers = set()
+ for v in self.dependency_graph.values():
+ if (v):
+ providers.update(v)
+ self.step_conditions = {}
+ self.step_status = {}
+ for p in list(providers):
+ self.step_conditions[p] = threading.Condition()
+ self.step_status[p] = STEP_STATUS_IDLE
+
logger.info('Waiting for event')
tBeforeWait = time.time()
for deletion in [False,True]:
threads = []
logger.info('Deletion=%r...'%deletion)
- ordered_steps = self.ordered_steps if not deletion else reversed(self.ordered_steps)
- thread = threading.Thread(target=self.sync, args=(ordered_steps,error_mapper,deletion))
+ schedule = self.sync_schedule if not deletion else self.delete_schedule
+
+ thread = threading.Thread(target=self.sync, args=(schedule.start_conditions, schedule.ordered_steps,deletion, schedule.signal_sem))
+
logger.info('Deletion=%r...'%deletion)
threads.append(thread)
git://git.onelab.eu / plstackapi.git / commitdiff