From 8601c24287c452c0d9a803b130e0f68cf6169f6a Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 21 Sep 2018 14:19:46 +0100 Subject: Fix some instances of ExpiringCache not expiring cache items ExpiringCache required that `start()` be called before it would actually start expiring entries. A number of places didn't do that. This PR removes `start` from ExpiringCache, and automatically starts backround reaping process on creation instead. --- synapse/federation/federation_client.py | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) (limited to 'synapse/federation') diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index fe67b2ff42..5a92428f56 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -66,6 +66,14 @@ class FederationClient(FederationBase): self.state = hs.get_state_handler() self.transport_layer = hs.get_federation_transport_client() + self._get_pdu_cache = ExpiringCache( + cache_name="get_pdu_cache", + clock=self._clock, + max_len=1000, + expiry_ms=120 * 1000, + reset_expiry_on_get=False, + ) + def _clear_tried_cache(self): """Clear pdu_destination_tried cache""" now = self._clock.time_msec() @@ -82,17 +90,6 @@ class FederationClient(FederationBase): if destination_dict: self.pdu_destination_tried[event_id] = destination_dict - def start_get_pdu_cache(self): - self._get_pdu_cache = ExpiringCache( - cache_name="get_pdu_cache", - clock=self._clock, - max_len=1000, - expiry_ms=120 * 1000, - reset_expiry_on_get=False, - ) - - self._get_pdu_cache.start() - @log_function def make_query(self, destination, query_type, args, retry_on_dns_fail=False, ignore_backoff=False): @@ -229,10 +226,9 @@ class FederationClient(FederationBase): # TODO: Rate limit the number of times we try and get the same event. - if self._get_pdu_cache: - ev = self._get_pdu_cache.get(event_id) - if ev: - defer.returnValue(ev) + ev = self._get_pdu_cache.get(event_id) + if ev: + defer.returnValue(ev) pdu_attempts = self.pdu_destination_tried.setdefault(event_id, {}) @@ -285,7 +281,7 @@ class FederationClient(FederationBase): ) continue - if self._get_pdu_cache is not None and signed_pdu: + if signed_pdu: self._get_pdu_cache[event_id] = signed_pdu defer.returnValue(signed_pdu) -- cgit 1.4.1