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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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8
synapse/rest/media/v1/preview_url_resource.py
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@ -41,6 +41,7 @@ from synapse.http.server import (
wrap_json_request_handler,
)
from synapse.http.servlet import parse_integer, parse_string
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.util.async import ObservableDeferred
from synapse.util.caches.expiringcache import ExpiringCache
from synapse.util.logcontext import make_deferred_yieldable, run_in_background
@ -81,7 +82,7 @@ class PreviewUrlResource(Resource):
self._cache.start()
self._cleaner_loop = self.clock.looping_call(
self._expire_url_cache_data, 10 * 1000
self._start_expire_url_cache_data, 10 * 1000,
)
def render_OPTIONS(self, request):
@ -371,6 +372,11 @@ class PreviewUrlResource(Resource):
"etag": headers["ETag"][0] if "ETag" in headers else None,
})
def _start_expire_url_cache_data(self):
run_as_background_process(
"expire_url_cache_data", self._expire_url_cache_data,
)
@defer.inlineCallbacks
def _expire_url_cache_data(self):
"""Clean up expired url cache content, media and thumbnails.