Re: [HACKERS] file descriptors leak?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Gene Sokolov" <hook(at)aktrad(dot)ru>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] file descriptors leak?
Date: 1999-11-01 21:17:01
Message-ID: 2611.941491021@sss.pgh.pa.us
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"Gene Sokolov" <hook(at)aktrad(dot)ru> writes:
> Seems like there is (was) a leak of file descriptors somewhere. The
> descriptors are being used up like crazy.

I fixed some problems along that line during the 6.5 cycle, and thought
the issue closed. Perhaps the problem's come back.

> After a week of work on a small
> database (6 tables, 20 or so indexes) Postgres used up well over 800
> descriptors.

Hmm, there must be multiple descriptors open for the same file then?
That's really weird. Can you obtain a listing of just what is open,
using lsof or some similar tool? Even better, can you provide a
reproducible test case that will cause descriptor leakage?

Also, exactly what do you mean by "Postgres used up..." --- is this
one backend, or a total across the whole system (if so, how many
backends are we talking about here?).

regards, tom lane

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