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From: Justin King <[email protected]>
To: [email protected]
Subject: repmgr94
Date: Sat, 7 Nov 2015 16:53:20 -0500
Message-ID: <CAL3i3zQ1LPsFCwx2gL+9P28CspYF3vbZXdshDqxjTP213KiadA@mail.gmail.com> (raw)
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Greetings,

The EL7 RPM for repmgr94 creates a new system user repmgr and has repmgrd
run as repmgr. Additionally when repmgr is invoked it expects read/write
over the postgres data directories and the ability to invoke pg_ctl using
system(...) which would require it to be either root or postgres. I took a
look through the source and it appears repmgrd invokes repmgr using
system(...) which would be running as the repmgr user and would fail. The
repmgr example spec files, readme/instructions, and the official
debian/ubuntu packages also assume repmgr and repmgrd run as postgres and
do not create a new user. They also place all of the repmgr binaries, log
file, and pid file in the same directories as postgres. If you used repmgr
without repmgrd you would not notice, or you would not notice until it
attempts to do automatic failover.

Justin

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