| From: | Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr> |
|---|---|
| To: | Magnus Hagander <magnus(at)hagander(dot)net> |
| Cc: | MauMau <maumau307(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Bruce Momjian <bruce(at)momjian(dot)us>, Josh Berkus <josh(at)agliodbs(dot)com> |
| Subject: | Re: Auto-tuning work_mem and maintenance_work_mem |
| Date: | 2013-10-13 20:18:37 |
| Message-ID: | m21u3o6i1u.fsf@2ndQuadrant.fr |
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| Lists: | pgsql-hackers |
Magnus Hagander <magnus(at)hagander(dot)net> writes:
> Frankly, I think we'd help 1000 times more users of we enabled a few wal
> writers by default and jumped the wal level. Mainly so they could run one
> off base backup. That's used by orders of magnitude more users than XA.
+1, or += default max_wal_senders actually ;-)
My vote would be to have default to at least 3, so that you can run both
a pg_basebackup -Xs (stream) and a standby or a pg_receivexlog in
parallel. Maybe 5 is an even better default.
Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support
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