Date: Tue, 23 May 2006 14:47:54 -0600 From: "Chad Leigh -- Shire.Net LLC" <chad@shire.net> To: Kirk Strauser <kirk@strauser.com> Cc: freebsd-questions@freebsd.org Subject: Re: PostgreSQL uses more memory on 6.1? Message-ID: <E517320D-7D91-481E-96AA-9520912CD4D7@shire.net> In-Reply-To: <200605231537.26304.kirk@strauser.com> References: <200605231537.26304.kirk@strauser.com>
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On May 23, 2006, at 2:37 PM, Kirk Strauser wrote: > I just upgraded from 6-STABLE as of 2006-02-18 to 6-STABLE as of > 2006-05-21, > and was surprised to find that PostgreSQL wouldn't start because it > couldn't allocate enough shared memory. Thing is, I didn't make a > single > hardware change during the reboot and didn't upgrade any ports on the > machine. > > My emergency fix was to edit postgresql.conf to change > shared_buffers from > 8192 to 2048. Unfortunately, that seems to be hurting performance > - I'm > getting annoying deadlocks at 4AM whenever multiple daemons start > their > overnight batch runs. > > Has anyone else seen this behavior when upgrading from 6.0 to 6.1? > Any > ideas for a fix? Just a guess -- did some kernel default for shared memory change or did you change your kernel config? Can you rebuild your kernel with explicit shared memory values? Look in the NOTES in /usr/src/sys/ conf at the various SHM values not an expert Chad --- Chad Leigh -- Shire.Net LLC Your Web App and Email hosting provider chad at shire.net
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