| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | MauMau <maumau307(at)gmail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Properly initialize negative/empty cache entries in relfilenodemap |
| Date: | 2013-08-29 12:38:09 |
| Message-ID: | 20130829123809.GB5277@awork2.anarazel.de |
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| Lists: | pgsql-hackers |
On 2013-08-29 21:35:13 +0900, MauMau wrote:
> >Andres Freund wrote:
> >>Hi,
> >>
> >>Thanks to the valgrind instrumentation I found a small oversight in the
> >>relfilenodemap patch which is fixed in the attached patch.
> Great! Could anybody find the root cause for the following memory leak
> problem, and if possible, fix this?
> http://www.postgresql.org/message-id/214653D8DF574BFEAA6ED53E545E99E4@maumau
> Heiki helped to solve this and found that pg_statistic entries are left in
> CacheMemoryContext, but we have no idea where and how they are created and
> left. This seems difficult to me.
That doesn't have anything to do with this patch/feature though, has it?
For one, the feature has only been integrated into HEAD after you've
reported the issue, for another, it's not even active unless you use it
the first time.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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