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List: opennms-install
Subject: Re: [opennms-install] UNCATEGORIZED: Error ... Too many open files
From: Guoben Li <guobenl () yahoo ! com>
Date: 2005-10-27 21:35:59
Message-ID: 20051027213600.42959.qmail () web30513 ! mail ! mud ! yahoo ! com
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--- DJ Gregor <dgregor@interhack.com> wrote:
> 1) Limit file descriptor usage so that it stays
> below 256, so that the
> fopen will work. This would probably mean less
> polling,
I tried several ways. Only one significantly reduced
the number of "Too many open file" errors. That's is
to comment many "<mibObj oid=.../>" in file
datacollection-config.xml. But still there are
hundreds, sometimes over a couple of thousands such
errors per hour in uncategorized.log.
> 2) See if rrdtool 1.2 uses something other than
> stdio for doing its
> I/O, which would remove the limitation on the file
> descriptors that it
> can use.
Please let me how?
>
> 4) If you are feeling adventurous, I have Java code
> that calls rrdtool
> over a pipe, which I would help you hack into
> OpenNMS. The rrdtool
> command would be in a separate process, and it would
> only have a
> handful of file descriptors open (probably one 3-4).
> This is probably
> the most difficult option, but might be the best if
> you don't want to
> switch to JRobin, which includes either throwing
> away our existing RRDs
> or converting them.
Now I think I need to try this with your help.
Thank you!
Guoben Li
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