diff options
Diffstat (limited to 'synapse/push/pusherpool.py')
| -rw-r--r-- | synapse/push/pusherpool.py | 78 |
1 files changed, 42 insertions, 36 deletions
diff --git a/synapse/push/pusherpool.py b/synapse/push/pusherpool.py index f6a5458681..2456f12f46 100644 --- a/synapse/push/pusherpool.py +++ b/synapse/push/pusherpool.py @@ -15,13 +15,12 @@ # limitations under the License. import logging -from collections import defaultdict -from threading import Lock -from typing import Dict, Tuple, Union +from typing import TYPE_CHECKING, Dict, Union + +from prometheus_client import Gauge from twisted.internet import defer -from synapse.metrics import LaterGauge from synapse.metrics.background_process_metrics import run_as_background_process from synapse.push import PusherConfigException from synapse.push.emailpusher import EmailPusher @@ -29,9 +28,18 @@ from synapse.push.httppusher import HttpPusher from synapse.push.pusher import PusherFactory from synapse.util.async_helpers import concurrently_execute +if TYPE_CHECKING: + from synapse.server import HomeServer + + logger = logging.getLogger(__name__) +synapse_pushers = Gauge( + "synapse_pushers", "Number of active synapse pushers", ["kind", "app_id"] +) + + class PusherPool: """ The pusher pool. This is responsible for dispatching notifications of new events to @@ -47,36 +55,20 @@ class PusherPool: Pusher.on_new_receipts are not expected to return deferreds. """ - def __init__(self, _hs): - self.hs = _hs - self.pusher_factory = PusherFactory(_hs) - self._should_start_pushers = _hs.config.start_pushers + def __init__(self, hs: "HomeServer"): + self.hs = hs + self.pusher_factory = PusherFactory(hs) + self._should_start_pushers = hs.config.start_pushers self.store = self.hs.get_datastore() self.clock = self.hs.get_clock() + # We shard the handling of push notifications by user ID. + self._pusher_shard_config = hs.config.push.pusher_shard_config + self._instance_name = hs.get_instance_name() + # map from user id to app_id:pushkey to pusher self.pushers = {} # type: Dict[str, Dict[str, Union[HttpPusher, EmailPusher]]] - # a lock for the pushers dict, since `count_pushers` is called from an different - # and we otherwise get concurrent modification errors - self._pushers_lock = Lock() - - def count_pushers(): - results = defaultdict(int) # type: Dict[Tuple[str, str], int] - with self._pushers_lock: - for pushers in self.pushers.values(): - for pusher in pushers.values(): - k = (type(pusher).__name__, pusher.app_id) - results[k] += 1 - return results - - LaterGauge( - name="synapse_pushers", - desc="the number of active pushers", - labels=["kind", "app_id"], - caller=count_pushers, - ) - def start(self): """Starts the pushers off in a background process. """ @@ -104,6 +96,7 @@ class PusherPool: Returns: Deferred[EmailPusher|HttpPusher] """ + time_now_msec = self.clock.time_msec() # we try to create the pusher just to validate the config: it @@ -176,6 +169,9 @@ class PusherPool: access_tokens (Iterable[int]): access token *ids* to remove pushers for """ + if not self._pusher_shard_config.should_handle(self._instance_name, user_id): + return + tokens = set(access_tokens) for p in (yield self.store.get_pushers_by_user_id(user_id)): if p["access_token"] in tokens: @@ -237,6 +233,9 @@ class PusherPool: if not self._should_start_pushers: return + if not self._pusher_shard_config.should_handle(self._instance_name, user_id): + return + resultlist = yield self.store.get_pushers_by_app_id_and_pushkey(app_id, pushkey) pusher_dict = None @@ -275,6 +274,11 @@ class PusherPool: Returns: Deferred[EmailPusher|HttpPusher] """ + if not self._pusher_shard_config.should_handle( + self._instance_name, pusherdict["user_name"] + ): + return + try: p = self.pusher_factory.create_pusher(pusherdict) except PusherConfigException as e: @@ -298,11 +302,12 @@ class PusherPool: appid_pushkey = "%s:%s" % (pusherdict["app_id"], pusherdict["pushkey"]) - with self._pushers_lock: - byuser = self.pushers.setdefault(pusherdict["user_name"], {}) - if appid_pushkey in byuser: - byuser[appid_pushkey].on_stop() - byuser[appid_pushkey] = p + byuser = self.pushers.setdefault(pusherdict["user_name"], {}) + if appid_pushkey in byuser: + byuser[appid_pushkey].on_stop() + byuser[appid_pushkey] = p + + synapse_pushers.labels(type(p).__name__, p.app_id).inc() # Check if there *may* be push to process. We do this as this check is a # lot cheaper to do than actually fetching the exact rows we need to @@ -330,9 +335,10 @@ class PusherPool: if appid_pushkey in byuser: logger.info("Stopping pusher %s / %s", user_id, appid_pushkey) - byuser[appid_pushkey].on_stop() - with self._pushers_lock: - del byuser[appid_pushkey] + pusher = byuser.pop(appid_pushkey) + pusher.on_stop() + + synapse_pushers.labels(type(pusher).__name__, pusher.app_id).dec() yield self.store.delete_pusher_by_app_id_pushkey_user_id( app_id, pushkey, user_id |