From: | Steve Kehlet <steve(dot)kehlet(at)gmail(dot)com> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Forums postgresql <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: how to investigate GIN fast updates and cleanup cycles? |
Date: | 2015-08-28 19:36:38 |
Message-ID: | CA+bfosGLCKoVFEDszs3vN__XNUqjpO1X6+Qy0pHFitmHwtZKww@mail.gmail.com |
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Lists: | pgsql-general |
On Fri, Aug 28, 2015 at 10:27 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Steve Kehlet <steve(dot)kehlet(at)gmail(dot)com> writes:
> > Yeah head scratch. That is really weird. Still gathering data, any way I
> > can see for sure when these cleanup cycles are occurring?
>
> contrib/pgstattuple has a function that can report the current size of the
> pending list for a GIN index. If you were to capture that every so often,
> it'd be pretty easy to confirm or refute whether these episodes are
> associated with list cleanup.
>
Thank you, I found it, this could be very helpful, we'll try it out on some
dev boxes.
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