Re: PostgreSQL 9.2.4 using large amount of memory

Bruce -
Will go through the blog posts. Thanks for the info.

Raghav -
I have not executed analyze after the upgrade.

-- Bhushan

On Wed, Jan 29, 2014 at 7:49 AM, Raghavendra <
raghavendra(dot)rao(at)enterprisedb(dot)com> wrote:

> Thanks
>
> On 27 Jan 2014 22:35, "Bhushan Pathak" <bhushan(dot)pathak02(at)gmail(dot)com> wrote:
> >
> > Hello,
> >
> > We have recently shifted to postgresql version 9.2.4 from 9.1.3. After
> the migration, we observed that some of our delete queries on single table
> [which have triggers, which in turn call other functions] have started
> consuming large amounts of memory.
> >
> > In 9.1.3, this usage was upto 25MB with the same load on the same
> server. With 9.2.4 it has jumped upto ~580 MB. We are monitoring the RES
> column from top output to get the memory usage.
> >
> > Our migration method from 9.1.3 to 9.2.4 was take a dump, un-install
> 9.1.3, install 9.2.4 & restore the dump.
> >
> > I also went through the thread -
> >
> http://postgresql.1045698.n5.nabble.com/Memory-usage-after-upgrade-to-9-2-4-td5752733.html
> >
> > In the thread in the end it is mentioned that there was some data
> corruption & points to 9.1.6 release notes. I went through the release
> notes & only thing of note that I found was the re-indexing or performing
> vacuum operation in case of in-place upgrade, which is not the case for me.
> >
> > Any help/pointers in debugging would be helpful.
> >
> > Thanks
> > Bhushan
> >
>
> Just wanted to know, after upgrade as a part of process have you performed
> ANALYZE on the database. I agree this might not relate to the question but
> am curious to know this issue raised after proper upgrade method.
>
> --Raghav
>