From: | Bryan Murphy <bmurphy1976(at)gmail(dot)com> |
---|---|
To: | PGSQL Mailing List <pgsql-general(at)postgresql(dot)org> |
Subject: | Hit by the out of memory killer last night |
Date: | 2011-01-31 15:55:43 |
Message-ID: | AANLkTi=vKjPvpxSjKNf6HRncra7DSf2ssuS_MDhfjM9M@mail.gmail.com |
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Lists: | pgsql-general |
Last night we were hit by the out of memory killer. Looking at the
following graph, you can clearly see unusual memory growth. This is a
database server running Postgres 9.0.0.
http://mediafly-public.s3.amazonaws.com/dbcluster02-master-month.png
We have another server, running Postgres 9.0.1 which showing a similar
behavior pattern:
http://mediafly-public.s3.amazonaws.com/dbcluster03-master-month.png
Compare these to another server which is running 8.3.7 and does not exhibit
this behavior:
http://mediafly-public.s3.amazonaws.com/dbcluster01-master-month.png
We're going to accelerate our upgrade to 9.0.2 for these servers, however,
I'm concerned that we have not identified the source of the memory leak and
this upgrade won't necessarily fix the problem.
Any advice? What should I be looking for?
Thanks,
Bryan
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