Re: increasing the default WAL segment size

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: increasing the default WAL segment size
Date: 2016-08-26 03:34:02
Message-ID: CAB7nPqTr5ryaxsB92DrHMroknAAk-rN_o-3dV4Kc2g61Cj-tAw@mail.gmail.com
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On Fri, Aug 26, 2016 at 12:25 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> If we change the default to 64MB, then I think it won't allow to use
> old databases as-is because we store it in pg_control (I think one
> will get below error [1] for old databases, if we just change default
> and don't do anything else). Do you have way to address it or you
> think it is okay?

Those would still be able to work with ./configure
--with-wal-segsize=16, so that's not really an issue.
--
Michael

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