Re: freeze under heavy load

As the process is running, run a "ps aux " and see the the convert
processes are properly closing.  Depending on the method you're using,
they may be still active (or zombied) and you're hitting a handle
limit.  Also periodically check "free" and make sure you don't have a
memory leak anywhere.

Matt

On Sat, Mar 8, 2008 at 5:11 PM, Aaron Birenboim <[email protected]> wrote:
> the sshd problem went away.
>  I never understood.
>
>  I was adding more services, like inetd and ftp....
>  and it looks like something fixed/changed some sort of configuration for
>  providing services.
>
>  Yes, the port was unused.
>  IPV6 was a possibility though.
>
>  **********  Now it gets nastier
>
>  I'm trying to run a process which, among other things, uses
>  imagemagick "convert" to add an annotation to several THOUSAND
>  images, stored as .jpg.
>
>  The machine is locking up during this process.
>
>  I can make it fail fairly regularly when converting sets of files,
>  (roughly every 3000-8000 convert's)
>  but it varies.
>
>  I don't see anything obdvious in the logs (yet).
>  I wonder if it could happen when an outside machine
>  tries to mount or ftp to this filesystem while the converts
>  are running.
>
>  Is it possible that some sort of kernel buffer is just overflowing
>  under heavy load?  Could the SATA disk just have hardware problems?
>
>              aaron
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-- 
Matthew Bowie
Programmer/IT Consultant
[email protected]
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