8.3 Autovacuum Questions - Mailing list pgsql-admin

From Chris Hoover
Subject 8.3 Autovacuum Questions
Date
Msg-id 1d219a6f0807141326p16d86505o84642b8d49fa6ad8@mail.gmail.com
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Responses Re: 8.3 Autovacuum Questions
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I just have a couple of quick questions about 8.3 and Autovacuum.

1.  When autovacuum chooses to vacuum a table, the entire table is vacuumed, and not just a specified percentage of the table.  Correct?

2.  There is no way, without turning autovacuum off, of excluding vacuum/analyze during a specific period of time (say during a known peak usage period).

3.  If I have a PostgreSQL cluster with 10 databases, does autovacuum_max_workers=3 mean I have a possibility of 3 total workers or 30 workers (i.e. autovacuum_max_workers * number of db's)?

Thanks,

Chris

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