Manually expire broken caches like the who_forgot_in_room

This commit is contained in:
Mark Haines 2016-05-13 17:16:27 +01:00
parent f03ddc98ec
commit b3f29dc1e5

View File

@ -131,6 +131,11 @@ class PusherSlaveStore(
DataStore.get_profile_displayname.__func__
)
# XXX: This is a bit broken because we don't persist forgotten rooms
# in a way that they can be streamed. This means that we don't have a
# way to invalidate the forgotten rooms cache correctly.
# For now we expire the cache every 10 minutes.
BROKEN_CACHE_EXPIRY_MS = 60 * 60 * 1000
who_forgot_in_room = (
RoomMemberStore.__dict__["who_forgot_in_room"]
)
@ -214,6 +219,7 @@ class PusherServer(HomeServer):
store = self.get_datastore()
replication_url = self.config.replication_url
pusher_pool = self.get_pusherpool()
clock = self.get_clock()
def stop_pusher(user_id, app_id, pushkey):
key = "%s:%s" % (app_id, pushkey)
@ -265,11 +271,21 @@ class PusherServer(HomeServer):
min_stream_id, max_stream_id, affected_room_ids
)
def expire_broken_caches():
store.who_forgot_in_room.invalidate_all()
next_expire_broken_caches_ms = 0
while True:
try:
args = store.stream_positions()
args["timeout"] = 30000
result = yield http_client.get_json(replication_url, args=args)
now_ms = clock.time_msec()
if now_ms > next_expire_broken_caches_ms:
expire_broken_caches()
next_expire_broken_caches_ms = (
now_ms + store.BROKEN_CACHE_EXPIRY_MS
)
yield store.process_replication(result)
poke_pushers(result)
except: