NSCA or NRPE for Performance
Michael S. Kazmier
mkazmier at sofast.net
Mon Jul 28 23:41:09 CEST 2003
Hello list,
We have been using Nagios for nearly a year now and love it! We are looking
at extending our utilization of by integrating NSCA/NRPE. In the
environment that we hope to utilize the remote service, the remote machine
queries nearly 1000 devices via SNMP every 10 minutes. Nagios by itself
does a great job of scheduling and runs smoothly. I have a nagios test
machine setup and there is almost no laod (never above 0.2 thanks to the
SNMPPD!!!), however, I am concerned that once I have 100 or more of these
remote machines running, all monitoring 1000 devices (yes, that is about
100,000 devices) the nagios central server will grind to a halt. Currently
this is a dual Xeon 2.4 with 2 GB of ram. I realize we may need to segment
these "central" servers to allow for proper scalability.
My question is, however, which is better for performance on the central
server, NSCA or NRPE? I read in one thread about how NSCA sends all data to
a FIFO pipe and that pipe has a limited buffer so service checks which come
in all at once may get dropped.
Please advise!
Thanks,
Mike
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