Re: Issues with Quorum Commit

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От Simon Riggs
Тема Re: Issues with Quorum Commit
Дата
Msg-id 1286374847.2304.101.camel@ebony
обсуждение исходный текст
Ответ на Re: Issues with Quorum Commit  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Ответы Re: Issues with Quorum Commit  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Re: Issues with Quorum Commit  (Markus Wanner <markus@bluegap.ch>)
Список pgsql-hackers
On Wed, 2010-10-06 at 15:26 +0300, Heikki Linnakangas wrote:

> You're not going to get zero data loss that way.

Ending the wait state does not cause data loss. It puts you at *risk* of
data loss, which is a different thing entirely.

If you want to avoid data loss you use N+k redundancy and get on with
life, rather than sitting around waiting.

Putting in a feature for people that choose k=0 seems wasteful to me,
since they knowingly put themselves at risk in the first place.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Development, 24x7 Support, Training and Services



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