Matrix-Mirrors/anonymousland-synapse
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fix a million stupid bugs and make it actually work

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This commit is contained in:
Matthew Hodgson 2014-12-08 19:34:51 +00:00
parent 0d3fa1ac6e
commit 8529fba02d
3 changed files with 33 additions and 20 deletions
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25
synapse/federation/replication.py
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@ -685,6 +685,7 @@ class _TransactionQueue(object):
self.transport_layer = transport_layer
self._clock = hs.get_clock()
self.store = hs.get_datastore()
# Is a mapping from destinations -> deferreds. Used to keep track
# of which destinations have transactions in flight and when they are
@ -775,11 +776,18 @@ class _TransactionQueue(object):
@defer.inlineCallbacks
@log_function
def _attempt_new_transaction(self, destination):
(retry_last_ts, retry_interval) = self.store.get_destination_retry_timings(destination)
if retry_last_ts + retry_interval > int(self._clock.time_msec()):
logger.info("TX [%s] not ready for retry yet - dropping transaction for now")
return
(retry_last_ts, retry_interval) = (0, 0)
retry_timings = yield self.store.get_destination_retry_timings(destination)
if retry_timings:
(retry_last_ts, retry_interval) = (
retry_timings.retry_last_ts, retry_timings.retry_interval
)
if retry_last_ts + retry_interval > int(self._clock.time_msec()):
logger.info("TX [%s] not ready for retry yet - dropping transaction for now", destination)
return
else:
logger.info("TX [%s] is ready for retry", destination)
if destination in self.pending_transactions:
# XXX: pending_transactions can get stuck on by a never-ending request
@ -866,7 +874,7 @@ class _TransactionQueue(object):
if code == 200:
if retry_last_ts:
# this host is alive! reset retry schedule
self.store.set_destination_retry_timings(destination, 0, 0)
yield self.store.set_destination_retry_timings(destination, 0, 0)
deferred.callback(None)
else:
self.start_retrying(destination, retry_interval)
@ -899,12 +907,13 @@ class _TransactionQueue(object):
# Check to see if there is anything else to send.
self._attempt_new_transaction(destination)
@defer.inlineCallbacks
def start_retrying(self, destination, retry_interval):
# track that this destination is having problems and we should
# give it a chance to recover before trying it again
if retry_interval:
retry_interval *= 2
else:
retry_interval = 2 # try again at first after 2 seconds
self.store.set_destination_retry_timings(destination,
retry_interval = 2000 # try again at first after 2 seconds
yield self.store.set_destination_retry_timings(destination,
int(self._clock.time_msec()), retry_interval)