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Try to ensure we don't persist an event we have already persisted. In persist_event check if we already have the event, if so then update instead of replacing so that we don't cause a bump of the stream_ordering.

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This commit is contained in:
Erik Johnston 2015-02-03 10:38:14 +00:00
parent 40c6fe1b81
commit e7ca813dd4
3 changed files with 68 additions and 19 deletions
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42
synapse/handlers/federation.py
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@ -112,6 +112,14 @@ class FederationHandler(BaseHandler):
logger.debug("Event: %s", event)
event_ids = set()
if state:
event_ids += {e.event_id for e in state}
if auth_chain:
event_ids += {e.event_id for e in auth_chain}
seen_ids = (yield self.store.have_events(event_ids)).keys()
# FIXME (erikj): Awful hack to make the case where we are not currently
# in the room work
current_state = None
@ -124,20 +132,26 @@ class FederationHandler(BaseHandler):
current_state = state
if state and auth_chain is not None:
for e in state:
e.internal_metadata.outlier = True
try:
auth_ids = [e_id for e_id, _ in e.auth_events]
auth = {
(e.type, e.state_key): e for e in auth_chain
if e.event_id in auth_ids
}
yield self._handle_new_event(origin, e, auth_events=auth)
except:
logger.exception(
"Failed to handle state event %s",
e.event_id,
)
for list_of_pdus in [auth_chain, state]:
for e in list_of_pdus:
if e.event_id in seen_ids:
continue
e.internal_metadata.outlier = True
try:
auth_ids = [e_id for e_id, _ in e.auth_events]
auth = {
(e.type, e.state_key): e for e in auth_chain
if e.event_id in auth_ids
}
yield self._handle_new_event(
origin, e, auth_events=auth
)
except:
logger.exception(
"Failed to handle state event %s",
e.event_id,
)
try:
yield self._handle_new_event(