diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index fdfce2a88c..da610e430f 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -531,7 +531,7 @@ class PresenceHandler(object):
# There are things not in our in memory cache. Lets pull them out of
# the database.
res = yield self.store.get_presence_for_users(missing)
- states.update({state.user_id: state for state in res})
+ states.update(res)
missing = [user_id for user_id, state in states.items() if not state]
if missing:
diff --git a/synapse/replication/slave/storage/presence.py b/synapse/replication/slave/storage/presence.py
index 703f4a49bf..40f6c9a386 100644
--- a/synapse/replication/slave/storage/presence.py
+++ b/synapse/replication/slave/storage/presence.py
@@ -18,6 +18,7 @@ from ._slaved_id_tracker import SlavedIdTracker
from synapse.util.caches.stream_change_cache import StreamChangeCache
from synapse.storage import DataStore
+from synapse.storage.presence import PresenceStore
class SlavedPresenceStore(BaseSlavedStore):
@@ -35,7 +36,8 @@ class SlavedPresenceStore(BaseSlavedStore):
_get_active_presence = DataStore._get_active_presence.__func__
take_presence_startup_info = DataStore.take_presence_startup_info.__func__
- get_presence_for_users = DataStore.get_presence_for_users.__func__
+ _get_presence_for_user = PresenceStore.__dict__["_get_presence_for_user"]
+ get_presence_for_users = PresenceStore.__dict__["get_presence_for_users"]
def get_current_presence_token(self):
return self._presence_id_gen.get_current_token()
diff --git a/synapse/rest/client/transactions.py b/synapse/rest/client/transactions.py
index efa77b8c51..fceca2edeb 100644
--- a/synapse/rest/client/transactions.py
+++ b/synapse/rest/client/transactions.py
@@ -87,9 +87,17 @@ class HttpTransactionCache(object):
deferred = fn(*args, **kwargs)
- # We don't add an errback to the raw deferred, so we ask ObservableDeferred
- # to swallow the error. This is fine as the error will still be reported
- # to the observers.
+ # if the request fails with a Twisted failure, remove it
+ # from the transaction map. This is done to ensure that we don't
+ # cache transient errors like rate-limiting errors, etc.
+ def remove_from_map(err):
+ self.transactions.pop(txn_key, None)
+ return err
+ deferred.addErrback(remove_from_map)
+
+ # We don't add any other errbacks to the raw deferred, so we ask
+ # ObservableDeferred to swallow the error. This is fine as the error will
+ # still be reported to the observers.
observable = ObservableDeferred(deferred, consumeErrors=True)
self.transactions[txn_key] = (observable, self.clock.time_msec())
return observable.observe()
diff --git a/synapse/storage/presence.py b/synapse/storage/presence.py
index 7460f98a1f..4d1590d2b4 100644
--- a/synapse/storage/presence.py
+++ b/synapse/storage/presence.py
@@ -15,7 +15,7 @@
from ._base import SQLBaseStore
from synapse.api.constants import PresenceState
-from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
+from synapse.util.caches.descriptors import cached, cachedInlineCallbacks, cachedList
from collections import namedtuple
from twisted.internet import defer
@@ -85,6 +85,9 @@ 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,)
+ )
# Actually insert new rows
self._simple_insert_many_txn(
@@ -143,7 +146,12 @@ class PresenceStore(SQLBaseStore):
"get_all_presence_updates", get_all_presence_updates_txn
)
- @defer.inlineCallbacks
+ @cached()
+ def _get_presence_for_user(self, user_id):
+ raise NotImplementedError()
+
+ @cachedList(cached_method_name="_get_presence_for_user", list_name="user_ids",
+ num_args=1, inlineCallbacks=True)
def get_presence_for_users(self, user_ids):
rows = yield self._simple_select_many_batch(
table="presence_stream",
@@ -165,7 +173,7 @@ class PresenceStore(SQLBaseStore):
for row in rows:
row["currently_active"] = bool(row["currently_active"])
- defer.returnValue([UserPresenceState(**row) for row in rows])
+ defer.returnValue({row["user_id"]: UserPresenceState(**row) for row in rows})
def get_current_presence_token(self):
return self._presence_id_gen.get_current_token()
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