Re: DRBD and Postgres: how to improve the perfomance?

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От Bernd Helmle
Тема Re: DRBD and Postgres: how to improve the perfomance?
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Msg-id 02B6620CD34BA4D0F4A62C45@imhotep.credativ.de
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Ответ на Re: DRBD and Postgres: how to improve the perfomance?  (Tom Lane <tgl@sss.pgh.pa.us>)
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--On Samstag, September 08, 2007 12:39:37 -0400 Tom Lane
<tgl@sss.pgh.pa.us> wrote:

> However, it seems like the point here is not so much "can you recover
> your data" as what a commit means.  Do you want a commit reported to the
> client to mean the data is safely down to disk in both places, or only
> one?

Yeah, that's what i meant to say. DRBD provides a handful other tweaks
besides changing the sync protocol, i'd start with them first. You can get
back experimenting with the sync protocol if there are still performance
issues then. I don't hesitate changing to B as long as I'm aware that it
changed semantics and I can deal with them.

--
  Thanks

                    Bernd

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