Re: Hot Standby remaining issues

Simon Riggs <simon@2ndquadrant.com>

From: Simon Riggs <simon@2ndQuadrant.com>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2009-12-02T11:00:14Z
Lists: pgsql-hackers
On Wed, 2009-12-02 at 12:49 +0200, Heikki Linnakangas wrote:

> If a read-only transaction holds a lot of locks, consuming so much
> lock space that there's none left for the startup process to hold the
> lock it wants, it will abort and bring down postmaster. The patch
> attempts to kill any conflicting lockers, but those are handled fine
> already (if there's any conflicting locks, LockAcquire will return
> LOCKACQUIRE_NOT_AVAIL anyway). The problem is with non-conflicting
> locks using up the lock space.

Oh dear, another "nuke 'em all from orbit" scenario. Will do.

-- 
 Simon Riggs           www.2ndQuadrant.com