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Run things as background processes

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This fixes #3518, and ensures that we get useful logs and metrics for lots of
things that happen in the background.

(There are certainly more things that happen in the background; these are just
the common ones I've found running a single-process synapse locally).
This commit is contained in:
Richard van der Hoff 2018-07-18 14:35:24 +01:00
parent 65d6a0e477
commit 667fba68f3
7 changed files with 44 additions and 26 deletions
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10
synapse/storage/background_updates.py
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@ -19,6 +19,8 @@ from canonicaljson import json
from twisted.internet import defer
from synapse.metrics.background_process_metrics import run_as_background_process
from . import engines
from ._base import SQLBaseStore
@ -87,10 +89,14 @@ class BackgroundUpdateStore(SQLBaseStore):
self._background_update_handlers = {}
self._all_done = False
@defer.inlineCallbacks
def start_doing_background_updates(self):
logger.info("Starting background schema updates")
run_as_background_process(
"background_updates", self._run_background_updates,
)
@defer.inlineCallbacks
def _run_background_updates(self):
logger.info("Starting background schema updates")
while True:
yield self.hs.get_clock().sleep(
self.BACKGROUND_UPDATE_INTERVAL_MS / 1000.)