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Wrap a number of things that run in the background

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This will reduce the number of "Starting db connection from sentinel context"
warnings, and will help with our metrics.
This commit is contained in:
Richard van der Hoff 2018-07-25 09:41:12 +01:00
parent 1e5dbdcbb1
commit 371da42ae4
9 changed files with 63 additions and 22 deletions
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14
synapse/replication/tcp/resource.py
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@ -25,6 +25,7 @@ from twisted.internet import defer
from twisted.internet.protocol import Factory
from synapse.metrics import LaterGauge
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.util.metrics import Measure, measure_func
from .protocol import ServerReplicationStreamProtocol
@ -117,7 +118,6 @@ class ReplicationStreamer(object):
for conn in self.connections:
conn.send_error("server shutting down")
@defer.inlineCallbacks
def on_notifier_poke(self):
"""Checks if there is actually any new data and sends it to the
connections if there are.
@ -132,14 +132,16 @@ class ReplicationStreamer(object):
stream.discard_updates_and_advance()
return
# If we're in the process of checking for new updates, mark that fact
# and return
self.pending_updates = True
if self.is_looping:
logger.debug("Noitifier poke loop already running")
self.pending_updates = True
logger.debug("Notifier poke loop already running")
return
self.pending_updates = True
run_as_background_process("replication_notifier", self._run_notifier_loop)
@defer.inlineCallbacks
def _run_notifier_loop(self):
self.is_looping = True
try: