Re: Updating FSM on recovery

From: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Updating FSM on recovery
Date: 2008-10-28 17:10:17
Message-ID: 49074779.2080309@enterprisedb.com
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Tom Lane wrote:
> As far as the ugliness in XLogRecordPageWithFreeSpace goes: couldn't you
> just call XLogReadBufferWithFork with init = true, and then initialize
> the page if PageIsNew?

With init=true, we don't even try to read the page from the disk (since
8.3), so all FSM pages accessed during recovery would be zeroed out. I
don't think that's what you intended.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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