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Re: WAL "low watermark" during base backup - Mailing list pgsql-hackers

From Jaime Casanova
Subject Re: WAL "low watermark" during base backup
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Msg-id CAJKUy5iwvw1m5ef1LZRjAVgEeOp7WuMF8hK=wBs258HixfgO0g@mail.gmail.com
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In response to WAL "low watermark" during base backup  (Magnus Hagander <magnus@hagander.net>)
Responses Re: WAL "low watermark" during base backup
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On Fri, Sep 2, 2011 at 12:52 PM, Magnus Hagander <magnus@hagander.net> wrote:
> Attached patch implements a "low watermark wal location" in the
> walsender shmem array. Setting this value in a walsender prevents
> transaction log removal prior to this point - similar to how
> wal_keep_segments work, except with an absolute number rather than
> relative.

cool! just a question, shouldn't we clean the value after the base
backup has finished?

--
Jaime Casanova         www.2ndQuadrant.com
Professional PostgreSQL: Soporte 24x7 y capacitación

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