Serial ocsp_command invocations
Ton Voon
ton.voon at altinity.com
Fri Jul 28 16:39:36 CEST 2006
Hi Ethan,
We were investigating a customer's distributed setup which had
latency figures around 8 seconds for their slave's active checks.
After trawling through the mailing list, we found Trask's mail who
discovered that the ocsp_command was being invoked serially - http://
www.mail-archive.com/nagios-users at lists.sourceforge.net/msg04610.html.
Looking through the Nagios code, it looks like nagios forks to run
the service check and then returns the result for a separate process
to evaluate the result. This process then runs the ocsp command.
Is there a reason the ocsp command is invoked serially? There is no
mention of serial/parallelising of ocsp in the docs at http://
nagios.sourceforge.net/docs/2_0/distributed.html.
Since the ocsp command looks like it is being invoked regardless of
the plugin result, would it make sense to invoke ocsp in the service
check fork?
If there is a good reason why ocsp is serialised, we'll publish our
way of solving this latency problem: caching submissions within our
ocsp script, before batch applying to send_nsca.
Ton
http://www.altinity.com
T: +44 (0)870 787 9243
F: +44 (0)845 280 1725
Skype: tonvoon
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.monitoring-lists.org/archive/developers/attachments/20060728/ea7205e6/attachment.html>
-------------- next part --------------
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
-------------- next part --------------
_______________________________________________
Nagios-devel mailing list
Nagios-devel at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-devel
More information about the Developers
mailing list