nagios produces 100% cpu load

[David Elze]

Hi, 

nagios 2.03b is working smoothly on a fairly simple configuration
(monitoring 5 systems in 3 different locations with about 6 services per
system) but after about 4 hours it (misab-)uses 100% CPU. If another
child process of nagios (i.e. a plugin) runs, the cpu usage is divided
so the nagios-related processes alltogether need 100% CPU.

I've configured max_concurrent_checks=5 but no effect. Everything is
running on OpenBSD (sparc64) in daemon-mode ('nagios -d') and the only 
warning I get when doing a 'nagios -v' is 'Warning: Size of 
service_message struct (528 bytes) is > POSIX-guaranteed atomic write 
size (512 bytes). Service checks results may get lost or mangled!'

If I kill-HUP the processes the high cpu usage remains the same as it is
the case if I try to restart the process(es) via the web interface. 

Thanks for any hint/rtfm/something

CU
  David
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