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From: Ron Johnson <[email protected]>
To: Pgsql-admin <[email protected]>
Subject: Better way to monitor for failed replication?
Date: Fri, 9 Jan 2026 10:50:28 -0500
Message-ID: <CANzqJaBG-MkG9YTt8pYTnHu+9U5wpwEcWQKzx2aOu85C6Uzn-w@mail.gmail.com> (raw)

Currently, in a bash script, I run this SELECT statement against the
Primary server which is supposed to replicate to multiple servers.  If
active == f, I send an alter email.

postgres=# SELECT rs.slot_name, rs.active, sr.client_hostname
from pg_replication_slots rs
    left outer join pg_stat_replication sr on rs.active_pid = sr.pid;
  slot_name   | active | client_hostname
--------------+--------+-----------------
 pgstandby1   | t      | BBOPITCPGS302B
 replicate_dr | f      |
(2 rows)

Is there a better way to check for replication that's supposed to be
happening, but isn't (like PG on the replica was stopped for some reason)?

-- 
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!


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