Matrix-Mirrors/anonymousland-synapse
1
0
Fork 0
mirror of https://git.anonymousland.org/anonymousland/synapse.git synced 2025-05-05 02:05:00 -04:00
Code Issues Projects Releases Packages Wiki Activity

Improve exception handling for background processes

Browse source 
There were a bunch of places where we fire off a process to happen in the
background, but don't have any exception handling on it - instead relying on
the unhandled error being logged when the relevent deferred gets
garbage-collected.

This is unsatisfactory for a number of reasons:
 - logging on garbage collection is best-effort and may happen some time after
   the error, if at all
 - it can be hard to figure out where the error actually happened.
 - it is logged as a scary CRITICAL error which (a) I always forget to grep for
   and (b) it's not really CRITICAL if a background process we don't care about
   fails.

So this is an attempt to add exception handling to everything we fire off into
the background.
This commit is contained in:
Richard van der Hoff 2018-04-27 11:07:40 +01:00
parent 0ced8b5b47
commit 9255a6cb17
20 changed files with 331 additions and 233 deletions
Download patch file Download diff file Expand all files Collapse all files

44
synapse/groups/attestations.py
View file

@ -165,28 +165,32 @@ class GroupAttestionRenewer(object):
@defer.inlineCallbacks
def _renew_attestation(group_id, user_id):
if not self.is_mine_id(group_id):
destination = get_domain_from_id(group_id)
elif not self.is_mine_id(user_id):
destination = get_domain_from_id(user_id)
else:
logger.warn(
"Incorrectly trying to do attestations for user: %r in %r",
user_id, group_id,
try:
if not self.is_mine_id(group_id):
destination = get_domain_from_id(group_id)
elif not self.is_mine_id(user_id):
destination = get_domain_from_id(user_id)
else:
logger.warn(
"Incorrectly trying to do attestations for user: %r in %r",
user_id, group_id,
)
yield self.store.remove_attestation_renewal(group_id, user_id)
return
attestation = self.attestations.create_attestation(group_id, user_id)
yield self.transport_client.renew_group_attestation(
destination, group_id, user_id,
content={"attestation": attestation},
)
yield self.store.remove_attestation_renewal(group_id, user_id)
return
attestation = self.attestations.create_attestation(group_id, user_id)
yield self.transport_client.renew_group_attestation(
destination, group_id, user_id,
content={"attestation": attestation},
)
yield self.store.update_attestation_renewal(
group_id, user_id, attestation
)
yield self.store.update_attestation_renewal(
group_id, user_id, attestation
)
except Exception:
logger.exception("Error renewing attestation of %r in %r",
user_id, group_id)
for row in rows:
group_id = row["group_id"]