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Fix remaining scheduler bugs. Add more informative logging.

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This commit is contained in:
Kegan Dougal 2015-03-10 10:04:20 +00:00
parent 7e0bba555c
commit db1fbc6c6f
3 changed files with 28 additions and 37 deletions
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8
synapse/appservice/api.py
View File

@ -83,9 +83,8 @@ class ApplicationServiceApi(SimpleHttpClient):
uri = service.url + ("/transactions/%s" % uri = service.url + ("/transactions/%s" %
urllib.quote(txn_id)) urllib.quote(txn_id))
response = None
try: try:
response = yield self.put_json( yield self.put_json(
uri=uri, uri=uri,
json_body={ json_body={
"events": events "events": events
@ -93,9 +92,8 @@ class ApplicationServiceApi(SimpleHttpClient):
args={ args={
"access_token": service.hs_token "access_token": service.hs_token
}) })
if response: # just an empty json object defer.returnValue(True)
# TODO: Mark txn as sent successfully return
defer.returnValue(True)
except CodeMessageException as e: except CodeMessageException as e:
logger.warning("push_bulk to %s received %s", uri, e.code) logger.warning("push_bulk to %s received %s", uri, e.code)
except Exception as ex: except Exception as ex:

52
synapse/appservice/scheduler.py
View File

@ -77,6 +77,7 @@ class AppServiceScheduler(object):
@defer.inlineCallbacks @defer.inlineCallbacks
def start(self): def start(self):
logger.info("Starting appservice scheduler")
# check for any DOWN ASes and start recoverers for them. # check for any DOWN ASes and start recoverers for them.
recoverers = yield _Recoverer.start( recoverers = yield _Recoverer.start(
self.clock, self.store, self.as_api, self.txn_ctrl.on_recovered self.clock, self.store, self.as_api, self.txn_ctrl.on_recovered
@ -137,40 +138,33 @@ class _TransactionController(object):
@defer.inlineCallbacks @defer.inlineCallbacks
def on_recovered(self, recoverer): def on_recovered(self, recoverer):
self.recoverers.remove(recoverer) self.recoverers.remove(recoverer)
logger.info("Successfully recovered application service: %s", logger.info("Successfully recovered application service AS ID %s",
recoverer.service) recoverer.service.id)
logger.info("Active recoverers: %s", len(self.recoverers)) logger.info("Remaining active recoverers: %s", len(self.recoverers))
applied_state = yield self.store.set_appservice_state( yield self.store.set_appservice_state(
recoverer.service, recoverer.service,
ApplicationServiceState.UP ApplicationServiceState.UP
) )
if not applied_state:
logger.error("Failed to apply appservice state UP to service %s",
recoverer.service)
def add_recoverers(self, recoverers): def add_recoverers(self, recoverers):
for r in recoverers: for r in recoverers:
self.recoverers.append(r) self.recoverers.append(r)
if len(recoverers) > 0: if len(recoverers) > 0:
logger.info("Active recoverers: %s", len(self.recoverers)) logger.info("New active recoverers: %s", len(self.recoverers))
@defer.inlineCallbacks @defer.inlineCallbacks
def _start_recoverer(self, service): def _start_recoverer(self, service):
applied_state = yield self.store.set_appservice_state( yield self.store.set_appservice_state(
service, service,
ApplicationServiceState.DOWN ApplicationServiceState.DOWN
) )
if applied_state: logger.info(
logger.info( "Application service falling behind. Starting recoverer. AS ID %s",
"Application service falling behind. Starting recoverer. %s", service.id
service )
) recoverer = self.recoverer_fn(service, self.on_recovered)
recoverer = self.recoverer_fn(service, self.on_recovered) self.add_recoverers([recoverer])
self.add_recoverers([recoverer]) recoverer.recover()
recoverer.recover()
else:
logger.error("Failed to apply appservice state DOWN to service %s",
service)
@defer.inlineCallbacks @defer.inlineCallbacks
def _is_service_up(self, service): def _is_service_up(self, service):
@ -190,6 +184,8 @@ class _Recoverer(object):
_Recoverer(clock, store, as_api, s, callback) for s in services _Recoverer(clock, store, as_api, s, callback) for s in services
] ]
for r in recoverers: for r in recoverers:
logger.info("Starting recoverer for AS ID %s which was marked as "
"DOWN", r.service.id)
r.recover() r.recover()
defer.returnValue(recoverers) defer.returnValue(recoverers)
@ -206,12 +202,13 @@ class _Recoverer(object):
@defer.inlineCallbacks @defer.inlineCallbacks
def retry(self): def retry(self):
txn = yield self._get_oldest_txn() txn = yield self.store.get_oldest_unsent_txn(self.service)
if txn: if txn:
logger.info("Retrying transaction %s for service %s", logger.info("Retrying transaction %s for AS ID %s",
txn.id, txn.service) txn.id, txn.service.id)
if txn.send(self.as_api): sent = yield txn.send(self.as_api)
txn.complete(self.store) if sent:
yield txn.complete(self.store)
# reset the backoff counter and retry immediately # reset the backoff counter and retry immediately
self.backoff_counter = 1 self.backoff_counter = 1
yield self.retry() yield self.retry()
@ -225,8 +222,3 @@ class _Recoverer(object):
def _set_service_recovered(self): def _set_service_recovered(self):
self.callback(self) self.callback(self)
@defer.inlineCallbacks
def _get_oldest_txn(self):
txn = yield self.store.get_oldest_unsent_txn(self.service)
defer.returnValue(txn)

5
synapse/storage/appservice.py
View File

@ -293,6 +293,8 @@ class ApplicationServiceStore(SQLBaseStore):
services = {} services = {}
for res in results: for res in results:
as_token = res["token"] as_token = res["token"]
if as_token is None:
continue
if as_token not in services: if as_token not in services:
# add the service # add the service
services[as_token] = { services[as_token] = {
@ -516,11 +518,10 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
# Monotonically increasing txn ids, so just select the smallest # Monotonically increasing txn ids, so just select the smallest
# one in the txns table (we delete them when they are sent) # one in the txns table (we delete them when they are sent)
result = txn.execute( result = txn.execute(
"SELECT *,MIN(txn_id) FROM application_services_txns WHERE as_id=?", "SELECT MIN(txn_id), * FROM application_services_txns WHERE as_id=?",
(service.id,) (service.id,)
) )
entry = self.cursor_to_dict(result)[0] entry = self.cursor_to_dict(result)[0]
if not entry or entry["txn_id"] is None: if not entry or entry["txn_id"] is None:
# the min(txn_id) part will force a row, so entry may not be None # the min(txn_id) part will force a row, so entry may not be None
return None return None