| From: | "Chris Hoover" <revoohc(at)gmail(dot)com> |
|---|---|
| To: | "pgsql-admin(at)postgresql(dot)org Admin" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | More Autovacuum questions |
| Date: | 2008-07-15 13:19:48 |
| Message-ID: | 1d219a6f0807150619o567709ebu7d28429d2907bf82@mail.gmail.com |
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| Lists: | pgsql-admin |
Another question.
When autovacuum sleeps, does it release the lock it has on the table?
What we would like to have happen is for vacuum to work for a while, sleep,
and while it is sleeping run an analyze on the table. We need this due to
how quickly our data is changing. Currently we are running analyze every 5
minutes against the table of question and get a very serious performance hit
when vacuum runs due to the index stats getting out of date. As soon as we
rerun analyze after the vacuum happiness returns.
The pg_total_relation_size for the table in question is 64GB, and as stated
above is a very heavily used and modifed table.
Thanks for any comments,
Chris
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