Horton

Re: Summary and Plan for Hot Standby

Simon Riggs <simon@2ndquadrant.com>

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From: Simon Riggs <simon@2ndQuadrant.com>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: pgsql-hackers@postgresql.org
Date: 2009-12-06T15:56:49Z
Lists: pgsql-hackers

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On Sun, 2009-11-15 at 16:07 +0200, Heikki Linnakangas wrote:

> - When switching from standby mode to normal operation, we momentarily
> hold all AccessExclusiveLocks held by prepared xacts twice, needing
> twice the lock space. You can run out of lock space at that point,
> causing failover to fail.

Proposed patch to fix that attached.

-- 
 Simon Riggs           www.2ndQuadrant.com