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Use presence replication stream to invalidate cache

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Instead of using the cache invalidation replication stream to invalidate
the _get_presence_cache, we can instead rely on the presence replication
stream. This reduces the amount of replication traffic considerably.
This commit is contained in:
Erik Johnston 2017-03-24 13:21:08 +00:00
parent 48e7697911
commit 09f79aaad0
2 changed files with 3 additions and 2 deletions
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1
synapse/replication/slave/storage/presence.py
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@ -57,5 +57,6 @@ class SlavedPresenceStore(BaseSlavedStore):
self.presence_stream_cache.entity_has_changed(
user_id, position
)
self._get_presence_for_user.invalidate((user_id,))
return super(SlavedPresenceStore, self).process_replication(result)

4
synapse/storage/presence.py
View file

@ -85,8 +85,8 @@ class PresenceStore(SQLBaseStore):
self.presence_stream_cache.entity_has_changed,
state.user_id, stream_id,
)
self._invalidate_cache_and_stream(
txn, self._get_presence_for_user, (state.user_id,)
txn.call_after(
self._get_presence_for_user, (state.user_id,)
)
# Actually insert new rows