Was the bug noted below ever fixed in a later Nagios 2.x? The changelog
doesn't seem to indicate that it has.
>From the Nagios 2.x documentation:
Known Issues
There is a known issue that can affect Nagios 2.0 on FreeBSD systems.
Hopefully this
problem can be fixed in a 2.x release...
1. FreeBSD and threads. On FreeBSD there's a native user-level
implementation of
threads called 'pthread' and there's also an optional ports collection
'linuxthreads' that uses kernel hooks. Some folks from Yahoo! have reported
that
using the pthread library causes Nagios to pause under heavy I/O load,
causing some
service check results to be lost. Switching to linuxthreads seems to help
this
problem, but not fix it. The lock happens in liblthread's
__pthread_acquire() - it
can't ever acquire the spinlock. It happens when the main thread forks to
execute an
active check. On the second fork to create the grandchild, the grandchild
is created
by fork, but never returns from liblthread's fork wrapper, because it's
stuck in
__pthread_acquire(). Maybe some FreeBSD users can help out with this
problem.
--
Mark Hennessy
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