Fix some looping_call calls which were broken in #3604

It turns out that looping_call does check the deferred returned by its
callback, and (at least in the case of client_ips), we were relying on this,
and I broke it in #3604.

Update run_as_background_process to return the deferred, and make sure we
return it to clock.looping_call.
This commit is contained in:
Richard van der Hoff 2018-07-26 11:44:26 +01:00
parent 1bcd0490c2
commit 03751a6420
13 changed files with 24 additions and 15 deletions

1
changelog.d/3610.feature Normal file
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@ -0,0 +1 @@
Add metrics to track resource usage by background processes

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@ -429,7 +429,7 @@ def run(hs):
stats_process = []
def start_phone_stats_home():
run_as_background_process("phone_stats_home", phone_stats_home)
return run_as_background_process("phone_stats_home", phone_stats_home)
@defer.inlineCallbacks
def phone_stats_home():
@ -502,7 +502,7 @@ def run(hs):
)
def generate_user_daily_visit_stats():
run_as_background_process(
return run_as_background_process(
"generate_user_daily_visits",
hs.get_datastore().generate_user_daily_visits,
)

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@ -153,7 +153,7 @@ class GroupAttestionRenewer(object):
defer.returnValue({})
def _start_renew_attestations(self):
run_as_background_process("renew_attestations", self._renew_attestations)
return run_as_background_process("renew_attestations", self._renew_attestations)
@defer.inlineCallbacks
def _renew_attestations(self):

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@ -256,7 +256,7 @@ class ProfileHandler(BaseHandler):
)
def _start_update_remote_profile_cache(self):
run_as_background_process(
return run_as_background_process(
"Update remote profile", self._update_remote_profile_cache,
)

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@ -151,13 +151,19 @@ def run_as_background_process(desc, func, *args, **kwargs):
This should be used to wrap processes which are fired off to run in the
background, instead of being associated with a particular request.
It returns a Deferred which completes when the function completes, but it doesn't
follow the synapse logcontext rules, which makes it appropriate for passing to
clock.looping_call and friends (or for firing-and-forgetting in the middle of a
normal synapse inlineCallbacks function).
Args:
desc (str): a description for this background process type
func: a function, which may return a Deferred
args: positional args for func
kwargs: keyword args for func
Returns: None
Returns: Deferred which returns the result of func, but note that it does not
follow the synapse logcontext rules.
"""
@defer.inlineCallbacks
def run():
@ -176,4 +182,4 @@ def run_as_background_process(desc, func, *args, **kwargs):
_background_processes[desc].remove(proc)
with PreserveLoggingContext():
run()
return run()

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@ -106,7 +106,7 @@ class MediaRepository(object):
)
def _start_update_recently_accessed(self):
run_as_background_process(
return run_as_background_process(
"update_recently_accessed_media", self._update_recently_accessed,
)

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@ -373,7 +373,7 @@ class PreviewUrlResource(Resource):
})
def _start_expire_url_cache_data(self):
run_as_background_process(
return run_as_background_process(
"expire_url_cache_data", self._expire_url_cache_data,
)

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@ -102,7 +102,7 @@ class ClientIpStore(background_updates.BackgroundUpdateStore):
to_update,
)
run_as_background_process(
return run_as_background_process(
"update_client_ips", update,
)

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@ -712,7 +712,7 @@ class DeviceStore(SQLBaseStore):
logger.info("Pruned %d device list outbound pokes", txn.rowcount)
run_as_background_process(
return run_as_background_process(
"prune_old_outbound_device_pokes",
self.runInteraction,
"_prune_old_outbound_device_pokes",

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@ -549,7 +549,7 @@ class EventFederationStore(EventFederationWorkerStore):
sql,
(self.stream_ordering_month_ago, self.stream_ordering_month_ago,)
)
run_as_background_process(
return run_as_background_process(
"delete_old_forward_extrem_cache",
self.runInteraction,
"_delete_old_forward_extrem_cache",

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@ -460,7 +460,7 @@ class EventPushActionsWorkerStore(SQLBaseStore):
)
def _find_stream_orderings_for_times(self):
run_as_background_process(
return run_as_background_process(
"event_push_action_stream_orderings",
self.runInteraction,
"_find_stream_orderings_for_times",
@ -790,7 +790,7 @@ class EventPushActionsStore(EventPushActionsWorkerStore):
""", (room_id, user_id, stream_ordering))
def _start_rotate_notifs(self):
run_as_background_process("rotate_notifs", self._rotate_notifs)
return run_as_background_process("rotate_notifs", self._rotate_notifs)
@defer.inlineCallbacks
def _rotate_notifs(self):

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@ -273,7 +273,9 @@ class TransactionStore(SQLBaseStore):
return self.cursor_to_dict(txn)
def _start_cleanup_transactions(self):
run_as_background_process("cleanup_transactions", self._cleanup_transactions)
return run_as_background_process(
"cleanup_transactions", self._cleanup_transactions,
)
def _cleanup_transactions(self):
now = self._clock.time_msec()

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@ -64,7 +64,7 @@ class ExpiringCache(object):
return
def f():
run_as_background_process(
return run_as_background_process(
"prune_cache_%s" % self._cache_name,
self._prune_cache,
)