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From: ramistuni <ramistuni@yahoo.com>
To: pgsql-performance@postgresql.org
Subject: Re: Hot Standby performance issue
Date: Fri, 25 Oct 2013 14:22:51 -0700 (PDT)
Message-ID: <1382736171070-5775972.post@n5.nabble.com> (raw)
In-Reply-To: <1382491400068-5775550.post@n5.nabble.com>
References: <52658780.1040002@fuzzy.cz>
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	<1382491400068-5775550.post@n5.nabble.com>
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Today morning I found that the performance issue on standby database was
fixed by itself. On further investigation I found that one of the biggest 
used in this query had autovacuum  kicked in yesterday on primary. The last
time it had autovaccum ran was on Sep 30th.

I am suspecting that this should have been fixed the issue. The table has
update and delete operations. Only thing I did not understand why postgres
did not pick this table for autovacuum all these days, in spite of this
table is one of the busiest table from DML perspective. I was monitoring the
primary database activity all these days and always could see autovacuum was
running on another tables.

Thanks.



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