Re: VACUUM ANALYSE... - Mailing list pgsql-novice

From Thilo Hille
Subject Re: VACUUM ANALYSE...
Date
Msg-id 006601c2bd5b$d8d05240$0b00a8c0@resourcery.de
Whole thread Raw
In response to reading command from file  ("Rosta Farzan" <rosta@acc.csuhayward.edu>)
List pgsql-novice
> Could you run the cron job more often?  That way, you'd be spreading
> the pain and each VACUUM ANALYSE would be doing less work.
It wouldnt change that much i suppose. I think the bottleneck is a table
which contains about 2.5 million records.
Even when running "vacuum analyse" twice without changing data in between
the second takes also a lot of time.
Also at night the usage of the Database is noticable less.
When starting Vacuum @daytime i can instantly watch the number of
postmasterclients and the sysload increasing very fast. Are the tables
writelocked during vaccum?

Thanks
Thilo


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