Re: Upgrade from 9.1.6 to 9,1.7 seems to have caused a major slowdown

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On 12/20/2012 12:06 PM, Greg Williamson wrote:
> Dear peoples,
>
>
> Today we upgraded a small (7.5 megabytes) but hyperactive database
> from postgresql 9.1.6 to 9.1.7 (we use INDEX CONCURRENTLY a lot)
> and after restarting it looks as if we have a slower system --
> fewer queries, but more long ones, fewer checkpoints. I am still
> manually comparing config settings to see if anything changed
> (shouldn't have but ...).
>
> Has anyone else seen anything like this ?
>

Hello

The release notes for 9.2.2 say this:

"... However, you may need to perform REINDEX operations to correct
problems in concurrently-built indexes, as described in the first
changelog item below....."

But the 9.1.7 note says nothing about this, even when this version has
the same patch for 'CREATE INDEX CONCURRENTLY' as 9.2.2

Why don't you try to reindex the indexes in your database and see it
this helps?

regards,
- --
Rafael Martinez Guerrero
Center for Information Technology
University of Oslo, Norway

PGP Public Key: http://folk.uio.no/rafael/
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