On Mar 8, 2010, at 9:17 AM, HyunSung Jang wrote:
hello.
I am think about setting up distributed monitoring but i just wanna know
about how many
hosts or services can hold in one nagios server.
There's no simple answer to this question because there are too many variables.
An equivalent question is 'How far will a car go on a liter of gas?
I have about 1000 hosts in my environment, and 3-5 services for each hosts.
this makes maximum 5000 services check which i need to setup.
Are these simple checks or complex checks? Are you performing them once a
second or once every 24 hours? Are you checking things on a fast LAN or slow
WAN? Answering these questions won't get you a definitive answer but does
illustrate some of the factors that can affect how many things you can check in
a given interval.
can I make one nagios server to check all this hosts and services?
and do you guys think that it is possible?
I expect that if you have a mix of simple (like ping) and complex (like
check_http) checks, performed every 5 minutes or so on modern hardware and a
decent network, you should be fine. I have single machines checking ~4000
services with 5 minute interval (complex and simple checks) and I appear to
have plenty of room to grow.
if not, how many hosts or services should hold in one nagios servers?
at this moment i adjusted interval_length to 1 in nagios.cfg and i am using
10 sec to check_interval in objects.cfg.
I'd be surprised if you could run 5000 checks every 10 seconds, even if they
were just ping (unless just a single ping). It may be possible but you'll have
several thousand processes running concurrently all the time.
Any comments or recommends are appreciated.
I think the best answer anyone can give you is Try And Find Out, given your
environment, the checks you want to perform and the frequency you want to
perform them.
--
Marc
--
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