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

From Magnus Hagander
Subject Re: WAL "low watermark" during base backup
Date
Msg-id CABUevExExTREsuc-j5ZLO-GbtS-k7_FnBROULdD-j=YDPww33g@mail.gmail.com
Whole thread Raw
In response to Re: WAL "low watermark" during base backup  (Jaime Casanova <jaime@2ndquadrant.com>)
List pgsql-hackers
On Fri, Sep 2, 2011 at 20:12, Jaime Casanova <jaime@2ndquadrant.com> wrote:
> 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?

We should. Thanks, will fix!

--
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/


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