Re: FSM corruption and standby servers

From: "Hunley, Douglas" <douglas(dot)hunley(at)openscg(dot)com>
To: Tim Goodaire <tgoodaire(at)dyn(dot)com>
Cc: pgsql-admin <pgsql-admin(at)postgresql(dot)org>
Subject: Re: FSM corruption and standby servers
Date: 2016-10-31 16:34:42
Message-ID: CAAD=pwHsr-wi1-pvPp3GzBP+f+X3f_KD2TcvMU9rqGqrE6Tt+w@mail.gmail.com
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On Mon, Oct 31, 2016 at 10:38 AM, Tim Goodaire <tgoodaire(at)dyn(dot)com> wrote:

> I have a question regarding the FSM corruption bug that is fixed in
> postgresql 9.5.5 (https://wiki.postgresql.org/wiki/Free_Space_Map_Problems)
> If I don't find any corruption on a master database, is it still possible
> that there is corruption on the standbys?
>

It shouldn't be, iirc. FSMs are only ever created/updated by vacuum, which
doesn't run on a slave until it is promoted to a master.

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{
"name" : "douglas j hunley",
"email" : "douglas(dot)hunley(at)openscg(dot)com <doug(dot)hunley(at)gmail(dot)com>",
"title" : "database engineer",
"phone" : "+1 732 339 3419 x163"
}

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