Re: Troublesome app when scaling it up, how to proceed?
Re: Troublesome app when scaling it up, how to proceed?
- Subject: Re: Troublesome app when scaling it up, how to proceed?
- From: Thomas Engelmeier <email@hidden>
- Date: Thu, 25 Oct 2007 10:23:56 +0200
On 24.10.2007, at 21:48, Scott Ribe wrote:
But my guess for a resource problem was right. I used setrlimit() to
increase the number of max open files (from the 4096 I had set it
to in
the past) to 10240 and now it works again.
Watch out, I think there is a system-wide limit, and I think it's
around
12,000 files total. If your app actually opens 10,000 files, it
could cause
problems for other apps.
Do you really need to run so many processes in parallel? Can you
not simply
throttle the number of processes running at any given time?
BTW, the number of processes is also limited.
I had a bad apache2 config on my machine once that resulted in
indefinitely spawning another instances under the hood. After a bunch
of minutes it was not possible to open any other application
reliable.. Most time it didn't succeed, sometimes I was lucky and
able to get another process to start up. The total number of
processes was not that high, 128 or so...
Regards,
Tom_E
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