NRPE vs NSCA benchmarking

[Maurizio Pinotti]

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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