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add: Log actual host and port of listener connection

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Diagnosing problems with listener channel notifications not being handled properly by PostgREST connected to read replicas is difficult. Issues might be related to lost connections and listener not being connected to the right host after failover or database server restarts.
This patch adds logging of actual host:port used by libpq connection opened by the listener. It should make it easier to find out if PostgREST is connected to the right host.
This commit is contained in:
Michał Kłeczek
2026-04-06 11:11:16 -05:00
committed by Steve Chavez
parent 5eac8bd203
commit 34a767a5cc
5 changed files with 32 additions and 8 deletions
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test/observability/ObsHelper.hs
+1 -1
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@@ -206,5 +206,5 @@ waitForObs (ObsChan orig copy) t msg f =
obsDiagMessage :: Observation -> Text
obsDiagMessage = \case
(HasqlPoolObs o) -> show o
o@(DBListenStart channel) -> constrName o <> show channel
o@(DBListenStart host port channel) -> constrName o <> show (host, port, channel)
o -> constrName o