diff options
| -rw-r--r-- | changelog.d/7103.feature | 1 | ||||
| -rw-r--r-- | synapse/metrics/__init__.py | 12 | ||||
| -rw-r--r-- | synapse/metrics/background_process_metrics.py | 5 | ||||
| -rw-r--r-- | synapse/push/pusherpool.py | 24 | ||||
| -rw-r--r-- | tox.ini | 2 |
5 files changed, 36 insertions, 8 deletions
diff --git a/changelog.d/7103.feature b/changelog.d/7103.feature new file mode 100644 index 0000000000..413e7f29d7 --- /dev/null +++ b/changelog.d/7103.feature @@ -0,0 +1 @@ +Add prometheus metrics for the number of active pushers. diff --git a/synapse/metrics/__init__.py b/synapse/metrics/__init__.py index 0dba997a23..d2fd29acb4 100644 --- a/synapse/metrics/__init__.py +++ b/synapse/metrics/__init__.py @@ -20,7 +20,7 @@ import os import platform import threading import time -from typing import Dict, Union +from typing import Callable, Dict, Iterable, Optional, Tuple, Union import six @@ -59,10 +59,12 @@ class RegistryProxy(object): @attr.s(hash=True) class LaterGauge(object): - name = attr.ib() - desc = attr.ib() - labels = attr.ib(hash=False) - caller = attr.ib() + name = attr.ib(type=str) + desc = attr.ib(type=str) + labels = attr.ib(hash=False, type=Optional[Iterable[str]]) + # callback: should either return a value (if there are no labels for this metric), + # or dict mapping from a label tuple to a value + caller = attr.ib(type=Callable[[], Union[Dict[Tuple[str, ...], float], float]]) def collect(self): diff --git a/synapse/metrics/background_process_metrics.py b/synapse/metrics/background_process_metrics.py index b65bcd8806..8449ef82f7 100644 --- a/synapse/metrics/background_process_metrics.py +++ b/synapse/metrics/background_process_metrics.py @@ -17,6 +17,7 @@ import logging import threading from asyncio import iscoroutine from functools import wraps +from typing import Dict, Set import six @@ -80,13 +81,13 @@ _background_process_db_sched_duration = Counter( # map from description to a counter, so that we can name our logcontexts # incrementally. (It actually duplicates _background_process_start_count, but # it's much simpler to do so than to try to combine them.) -_background_process_counts = {} # type: dict[str, int] +_background_process_counts = {} # type: Dict[str, int] # map from description to the currently running background processes. # # it's kept as a dict of sets rather than a big set so that we can keep track # of process descriptions that no longer have any active processes. -_background_processes = {} # type: dict[str, set[_BackgroundProcess]] +_background_processes = {} # type: Dict[str, Set[_BackgroundProcess]] # A lock that covers the above dicts _bg_metrics_lock = threading.Lock() diff --git a/synapse/push/pusherpool.py b/synapse/push/pusherpool.py index 01789a9fb4..bf721759df 100644 --- a/synapse/push/pusherpool.py +++ b/synapse/push/pusherpool.py @@ -15,11 +15,16 @@ # limitations under the License. import logging +from collections import defaultdict +from typing import Dict, Tuple, Union 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 +from synapse.push.httppusher import HttpPusher from synapse.push.pusher import PusherFactory from synapse.util.async_helpers import concurrently_execute @@ -47,7 +52,24 @@ class PusherPool: self._should_start_pushers = _hs.config.start_pushers self.store = self.hs.get_datastore() self.clock = self.hs.get_clock() - self.pushers = {} + + # map from user id to app_id:pushkey to pusher + self.pushers = {} # type: Dict[str, Dict[str, Union[HttpPusher, EmailPusher]]] + + def count_pushers(): + results = defaultdict(int) # type: Dict[Tuple[str, str], int] + 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. diff --git a/tox.ini b/tox.ini index 8b4c37c2ee..8e3f09e638 100644 --- a/tox.ini +++ b/tox.ini @@ -191,7 +191,9 @@ commands = mypy \ synapse/handlers/sync.py \ synapse/handlers/ui_auth \ synapse/logging/ \ + synapse/metrics \ synapse/module_api \ + synapse/push/pusherpool.py \ synapse/replication \ synapse/rest \ synapse/spam_checker_api \ |