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Re: CLOG contention, part 2

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: CLOG contention, part 2
Date: 2012-01-21 13:57:45
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Lists: pgsql-hackers
On Fri, Jan 20, 2012 at 10:44 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>>> D'oh.  You're right.  Looks like I accidentally tried to apply this to
>>> the 9.1 sources.  Sigh...
>> No worries. It's Friday.

Server passed 'make check' with this patch, but when I tried to fire
it up for some test runs, it fell over with:

FATAL:  no more LWLockIds available

I assume that it must be dependent on the config settings used.  Here are mine:

shared_buffers = 8GB
maintenance_work_mem = 1GB
synchronous_commit = off
checkpoint_segments = 300
checkpoint_timeout = 15min
checkpoint_completion_target = 0.9
wal_writer_delay = 20ms

Robert Haas
The Enterprise PostgreSQL Company

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