ocsp slows nagios a great deal

[loren jan wilson]

dear nagios users,

I'm in the process of trying to set up a distributed nagios
environment monitoring about 9,000 services on 2,500 hosts.
i'm using Sunfire V210 servers running Solaris 10.

i've found that the distributed servers which monitor the active
services can run about 1700 checks every 5 minutes if ocsp isn't
enabled, but once I enable ocsp, the number of active checks I can do
goes WAY down. here's a breakdown:

- ocsp disabled: 1700 checks / 5 min.

- ocsp command set to /bin/true: 1200 checks / 5 min.

- ocsp command set to a perl program that forks, then pipes output to
  send_nsca: 800 checks / 5 min. 

- ocsp command set to a shell program that pipes output to
  send_nsca: 500 checks / 5 min.

What's the deal? I've followed the instructions in the "performance
tuning" place in the manual, but nothing seems to help much, and I
don't know what else to check. Resources on the machines are not being
fully utilized.... there's about 30% free cpu at any given time, and
plenty of RAM (only 500 MB used of 2 GB). Any help would be much
appreciated!

Solaris 10 is fully patched with recommended updates from last week.
I'm running Nagios 2.5 and it's configured like this:

        --with-perlcache \
        --enable-embedded-perl \
        --enable-nanosleep \
        --with-gd-inc=$GD_INC_PATH \
        --with-gd-lib=$GD_LIB_PATH



Thanks, 
Loren


-- 
loren jan wilson
network engineering, uchicago.edu
1155 rm. 327 ; 773/702-8189

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null