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Add some metrics for inbound and outbound federation processing times (#7755)
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changelog.d/7755.misc
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changelog.d/7755.misc
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Add some metrics for inbound and outbound federation latencies: `synapse_federation_server_pdu_process_time` and `synapse_event_processing_lag_by_event`.
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@ -18,7 +18,7 @@ import logging
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from typing import Any, Callable, Dict, List, Match, Optional, Tuple, Union
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from canonicaljson import json
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from prometheus_client import Counter
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from prometheus_client import Counter, Histogram
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from twisted.internet import defer
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from twisted.internet.abstract import isIPAddress
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@ -70,6 +70,10 @@ received_queries_counter = Counter(
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"synapse_federation_server_received_queries", "", ["type"]
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)
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pdu_process_time = Histogram(
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"synapse_federation_server_pdu_process_time", "Time taken to process an event",
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)
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class FederationServer(FederationBase):
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def __init__(self, hs):
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@ -271,21 +275,22 @@ class FederationServer(FederationBase):
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for pdu in pdus_by_room[room_id]:
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event_id = pdu.event_id
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with nested_logging_context(event_id):
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try:
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await self._handle_received_pdu(origin, pdu)
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pdu_results[event_id] = {}
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except FederationError as e:
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logger.warning("Error handling PDU %s: %s", event_id, e)
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pdu_results[event_id] = {"error": str(e)}
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except Exception as e:
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f = failure.Failure()
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pdu_results[event_id] = {"error": str(e)}
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logger.error(
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"Failed to handle PDU %s",
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event_id,
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exc_info=(f.type, f.value, f.getTracebackObject()),
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)
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with pdu_process_time.time():
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with nested_logging_context(event_id):
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try:
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await self._handle_received_pdu(origin, pdu)
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pdu_results[event_id] = {}
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except FederationError as e:
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logger.warning("Error handling PDU %s: %s", event_id, e)
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pdu_results[event_id] = {"error": str(e)}
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except Exception as e:
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f = failure.Failure()
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pdu_results[event_id] = {"error": str(e)}
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logger.error(
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"Failed to handle PDU %s",
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event_id,
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exc_info=(f.type, f.value, f.getTracebackObject()),
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)
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await concurrently_execute(
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process_pdus_for_room, pdus_by_room.keys(), TRANSACTION_CONCURRENCY_LIMIT
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@ -201,7 +201,15 @@ class FederationSender(object):
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logger.debug("Sending %s to %r", event, destinations)
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self._send_pdu(event, destinations)
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if destinations:
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self._send_pdu(event, destinations)
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now = self.clock.time_msec()
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ts = await self.store.get_received_ts(event.event_id)
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synapse.metrics.event_processing_lag_by_event.labels(
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"federation_sender"
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).observe(now - ts)
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async def handle_room_events(events: Iterable[EventBase]) -> None:
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with Measure(self.clock, "handle_room_events"):
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@ -114,6 +114,12 @@ class ApplicationServicesHandler(object):
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for service in services:
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self.scheduler.submit_event_for_as(service, event)
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now = self.clock.time_msec()
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ts = yield self.store.get_received_ts(event.event_id)
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synapse.metrics.event_processing_lag_by_event.labels(
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"appservice_sender"
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).observe(now - ts)
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@defer.inlineCallbacks
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def handle_room_events(events):
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for event in events:
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@ -463,6 +463,12 @@ event_processing_last_ts = Gauge("synapse_event_processing_last_ts", "", ["name"
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# finished being processed.
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event_processing_lag = Gauge("synapse_event_processing_lag", "", ["name"])
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event_processing_lag_by_event = Histogram(
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"synapse_event_processing_lag_by_event",
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"Time between an event being persisted and it being queued up to be sent to the relevant remote servers",
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["name"],
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)
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# Build info of the running server.
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build_info = Gauge(
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"synapse_build_info", "Build information", ["pythonversion", "version", "osversion"]
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