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Fix federation inbound age metric. (#10355)

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We should be reporting the age rather than absolute timestamp.
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Erik Johnston 2021-07-13 11:33:15 +01:00 committed by GitHub
parent c2c364f27f
commit 879d8c1ee1
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2 changed files with 4 additions and 1 deletions
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changelog.d/10355.bugfix Normal file
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@ -0,0 +1 @@
Fix newly added `synapse_federation_server_oldest_inbound_pdu_in_staging` prometheus metric to measure age rather than timestamp.

4
synapse/storage/databases/main/event_federation.py
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@ -1230,7 +1230,9 @@ class EventFederationWorkerStore(EventsWorkerStore, SignatureWorkerStore, SQLBas
"SELECT coalesce(min(received_ts), 0) FROM federation_inbound_events_staging"
)
(age,) = txn.fetchone()
(received_ts,) = txn.fetchone()
age = self._clock.time_msec() - received_ts
return count, age