ben@??? said:
} Would be grateful for settings anyone else is suceeding with to tackle
} these two problems which happen when the server is very heavily
} loaded. I get the "too many open files" error especially when a lot of
} messages land for majordomo at the same time. I have set everything I
} could find in the spec.txt and FAQs not to overstress my system
} (RedHat 5.0, exim 2.11). exim is compiled WITH_DB (Berkley), should I
} try ndbm? Do I have to recompile Linux? Yikes
Are you running out of per-process files (normally a limit of 256) or
overall open files?
You can check the per system limits by looking at:-
/proc/sys/kernel/file-nr - max # files used at once
/proc/sys/kernel/file-max - limit of files open
You can increase the per system limits by doing something like:-
echo "4096" >/proc/sys/kernel/file-max
You may also wish to look at the inode limits (replace file by inode in
the proc filenames above), and increase this by a significant number.
If you are running out of per process filehandles, then you probably need
to patch the kernel, and maybe libc. [Gnu libc has limits of 1024 files
per process by default, but kernel still needs tweaking]. I would be
suprised if you hit this limit on a mail system (thats a news system
problem).
Nigel.
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[ Nigel.Metheringham@??? - Systems Software Engineer ]
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