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Re: cheaper snapshots

From: Hannu Krosing <hannu(at)krosing(dot)net>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: cheaper snapshots
Date: 2011-07-28 23:29:54
Message-ID: 1311895794.3117.1614.camel@hvost (view raw or flat)
Thread:
Lists: pgsql-hackers
On Thu, 2011-07-28 at 16:42 -0400, Robert Haas wrote:
> On Thu, Jul 28, 2011 at 4:36 PM, Hannu Krosing <hannu(at)krosing(dot)net> wrote:
> > so in case of stuck slave the syncrep transcation is committed after
> > crash, but is not committed before the crash happens ?
> 
> Yep.
> 
> > ow will the replay process get stuc gaian during recovery ?
> 
> Nope.

Are you sure ? I mean the case when a stuck master comes up but slave is
still not functional.

How does this behavior currently fit in with ACID and sync guarantees ?

> -- 
> Robert Haas
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
> 



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