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We are upgrading from postgres 7.4.5 to 8.2.4 in a couple weeks.
I am debating as to what I should set my maintenance_work_mem and shared_buffers parameters to. Here are some of our current resources Total memory on machine: 32GB Total disks – 5 Raid 10 (so five primary, five
mirrored) Total database size: 60GB Total number of tables: 300 Total number of indexes: 500 Max connections: 200 Average connections at one time: 10 – 15 We currently set our 7.4.5 vacuum_mem to 1 GB. I understand we
don’t want That any higher as we risk overflowing our 32 bit configuration.
But, since We will be running autovacuum for the first time I assume that this will
be pulling memory According to our maintenance_work_mem value perpetually during the day,
so perhaps I should set it smaller than 1 Gig? Also, our 7.4.5 shared buffers value is currently at 150,000 buffers.
I know this is Very large for 7.4.5 but may be more appropriate for 8.2.4. Any
thoughts? Thank you, Mark Steben Senior Database Administrator msteben@autorevenue.com IMPORTANT: The information contained in
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