| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Markus Wanner <markus(at)bluegap(dot)ch>, ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Synchronous Log Shipping Replication |
| Date: | 2008-09-09 09:35:35 |
| Message-ID: | 1220952935.3913.389.camel@ebony.2ndQuadrant |
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| Lists: | pgsql-hackers |
On Tue, 2008-09-09 at 12:24 +0300, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > This gives us the Group Commit feature also, even if we are not using
> > replication. So we can drop the commit_delay stuff.
>
> Huh? How does that give us group commit?
Multiple backends waiting while we perform a write. Commits then happen
as a group (to WAL at least), hence Group Commit.
--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support
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