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CLUSTER using more memory than expected

From: "Joshua Marsh" <icub3d(at)gmail(dot)com>
To: pgsql-admin(at)postgresql(dot)org
Subject: CLUSTER using more memory than expected
Date: 2006-10-25 16:13:59
Message-ID: 38242de90610250913s119e84c6rcf167edd74eadd60@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-admin
The CLUSTER function seems to be using more memory than I expect.  Here is
what I get from top and from my config file:

from top:
27589 postgres  25   0 3943m 3.6g  11m R 99.9 61.6 639:19.41 postgres:
postgres data 127.0.0.1(42126) CLUSTER

from postgresql.conf
shared_buffers = 1000 #26214            # min 16, at least
max_connections*2, 8KB each
work_mem = 256000               # min 64, size in KB
maintenance_work_mem = 2097151  # min 1024, size in KB
#max_stack_depth = 2048         # min 100, size in KB

My version is: 8.0.3

Any ideas why this would be happening.  I tried a full restart and the same
thing happens.

Thanks,

Josh


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