NRPE vs NSCA benchmarking

Maurizio Pinotti maurizio at pinottinet.com
Thu Apr 24 16:06:58 CEST 2008


Hi everybody,

has anyone of you ever tried to benchmark NRPE and NSCA performance?
It's acknowledged that passive checks (NSCA) move the load from Nagios
server to monitored machines, so from a Nagios point of view they need
less resources. But how much less?

I'm trying to design a distributed monitoring setup to hold a total
amount of 15-20K services, so I have:
- 1 master Nagios server with ALL 15K services (passive)
- an undefined number of slave server each monitoring a portion of the
15K services

The slaves perform the checks and report the result to the master.
This is the point: how should the slave perform the checks? NRPE or NSCA?

I thought about some pros and cons, here is the result:

NRPE PROS: centralized configuration, less error prone

NRPE CONS: centralized load causes limited scalability

NSCA PROS/CONS: the opposite

Any other suggestion or benchmarking tool/approach would be appreciated.

Bye
Maurizio Pinotti



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