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Add logging for redis connection setup (#9590)

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Richard van der Hoff 2021-03-11 18:35:09 +00:00 • committed by GitHub
parent e55bd0e110
commit 464e5da7b2
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3 changed files with 39 additions and 1 deletions
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35
synapse/replication/tcp/redis.py
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@ -20,6 +20,10 @@ from typing import TYPE_CHECKING, Generic, Optional, Type, TypeVar, cast
import attr
import txredisapi
from twisted.internet.address import IPv4Address, IPv6Address
from twisted.internet.interfaces import IAddress, IConnector
from twisted.python.failure import Failure
from synapse.logging.context import PreserveLoggingContext, make_deferred_yieldable
from synapse.metrics.background_process_metrics import (
BackgroundProcessLoggingContext,
@ -253,6 +257,37 @@ class SynapseRedisFactory(txredisapi.RedisFactory):
except Exception:
logger.warning("Failed to send ping to a redis connection")
# ReconnectingClientFactory has some logging (if you enable `self.noisy`), but
# it's rubbish. We add our own here.
def startedConnecting(self, connector: IConnector):
logger.info(
"Connecting to redis server %s", format_address(connector.getDestination())
)
super().startedConnecting(connector)
def clientConnectionFailed(self, connector: IConnector, reason: Failure):
logger.info(
"Connection to redis server %s failed: %s",
format_address(connector.getDestination()),
reason.value,
)
super().clientConnectionFailed(connector, reason)
def clientConnectionLost(self, connector: IConnector, reason: Failure):
logger.info(
"Connection to redis server %s lost: %s",
format_address(connector.getDestination()),
reason.value,
)
super().clientConnectionLost(connector, reason)
def format_address(address: IAddress) -> str:
if isinstance(address, (IPv4Address, IPv6Address)):
return "%s:%i" % (address.host, address.port)
return str(address)
class RedisDirectTcpReplicationClientFactory(SynapseRedisFactory):
"""This is a reconnecting factory that connects to redis and immediately