Merge branch 'release-v0.18.6' into develop
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CHANGES.rst
10
CHANGES.rst
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@ -1,3 +1,13 @@
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Changes in synapse v0.18.6-rc2 (2016-12-30)
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===========================================
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Bug fixes:
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* Fix memory leak in twisted by initialising logging correctly (PR #1731)
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* Fix bug where fetching missing events took an unacceptable amount of time in
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large rooms (PR #1734)
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Changes in synapse v0.18.6-rc1 (2016-12-29)
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===========================================
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@ -16,4 +16,4 @@
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""" This is a reference implementation of a Matrix home server.
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"""
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__version__ = "0.18.6-rc1"
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__version__ = "0.18.6-rc2"
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@ -27,7 +27,6 @@ from synapse.util.caches.expiringcache import ExpiringCache
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from synapse.util.logutils import log_function
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from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
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from synapse.events import FrozenEvent
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from synapse.types import get_domain_from_id
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import synapse.metrics
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from synapse.util.retryutils import get_retry_limiter, NotRetryingDestination
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@ -741,8 +740,6 @@ class FederationClient(FederationBase):
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signed_events = yield self._check_sigs_and_hash_and_fetch(
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destination, events, outlier=False
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)
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have_gotten_all_from_destination = True
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except HttpResponseException as e:
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if not e.code == 400:
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raise
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@ -750,72 +747,6 @@ class FederationClient(FederationBase):
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# We are probably hitting an old server that doesn't support
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# get_missing_events
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signed_events = []
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have_gotten_all_from_destination = False
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if len(signed_events) >= limit:
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defer.returnValue(signed_events)
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users = yield self.state.get_current_user_in_room(room_id)
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servers = set(get_domain_from_id(u) for u in users)
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servers = set(servers)
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servers.discard(self.server_name)
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failed_to_fetch = set()
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while len(signed_events) < limit:
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# Are we missing any?
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seen_events = set(earliest_events_ids)
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seen_events.update(e.event_id for e in signed_events if e)
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missing_events = {}
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for e in itertools.chain(latest_events, signed_events):
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if e.depth > min_depth:
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missing_events.update({
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e_id: e.depth for e_id, _ in e.prev_events
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if e_id not in seen_events
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and e_id not in failed_to_fetch
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})
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if not missing_events:
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break
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have_seen = yield self.store.have_events(missing_events)
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for k in have_seen:
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missing_events.pop(k, None)
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if not missing_events:
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break
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# Okay, we haven't gotten everything yet. Lets get them.
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ordered_missing = sorted(missing_events.items(), key=lambda x: x[0])
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if have_gotten_all_from_destination:
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servers.discard(destination)
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def random_server_list():
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srvs = list(servers)
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random.shuffle(srvs)
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return srvs
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deferreds = [
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preserve_fn(self.get_pdu)(
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destinations=random_server_list(),
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event_id=e_id,
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)
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for e_id, depth in ordered_missing[:limit - len(signed_events)]
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]
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res = yield preserve_context_over_deferred(
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defer.DeferredList(deferreds, consumeErrors=True)
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)
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for (result, val), (e_id, _) in zip(res, ordered_missing):
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if result and val:
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signed_events.append(val)
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else:
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failed_to_fetch.add(e_id)
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defer.returnValue(signed_events)
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@ -538,7 +538,16 @@ class FederationServer(FederationBase):
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if get_missing and prevs - seen:
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# If we're missing stuff, ensure we only fetch stuff one
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# at a time.
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logger.info(
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"Acquiring lock for room %r to fetch %d missing events: %r...",
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pdu.room_id, len(prevs - seen), list(prevs - seen)[:5],
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)
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with (yield self._room_pdu_linearizer.queue(pdu.room_id)):
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logger.info(
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"Acquired lock for room %r to fetch %d missing events",
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pdu.room_id, len(prevs - seen),
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)
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# We recalculate seen, since it may have changed.
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have_seen = yield self.store.have_events(prevs)
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seen = set(have_seen.keys())
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@ -23,6 +23,10 @@ from synapse.util import unwrapFirstError
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from contextlib import contextmanager
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import logging
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logger = logging.getLogger(__name__)
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@defer.inlineCallbacks
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def sleep(seconds):
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@ -181,6 +185,7 @@ class Linearizer(object):
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self.key_to_defer[key] = new_defer
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if current_defer:
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logger.info("Waiting to acquire linearizer lock for key %r", key)
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with PreserveLoggingContext():
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yield current_defer
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