service checks running too often

[Mike Guthrie]

Although some of those start times do seem close together, it's 
important to know that the check_interval in Nagios is not necessarily a 
hard number. Nagios is continually adjusting and recalculating the check 
schedule, so if you need a check to run on a hard 5mn schedule, you 
might be better off using cron, and then pushing the result to Nagios 
passively.

With that said, access the service details for this service. When new 
results come in does the scheduler set the Next Check 5mn out as expected?


On 12/13/2012 9:43 AM, Mark Keisler wrote:
> I'm running Nagios 3.4.1 on RHEL6. I have an issue where I have a 
> poller (service check) that is running too often and I am not sure 
> why. I have "service_check_timeout=180" because I had trouble with the 
> poller running long. Relevant settings for the service check:
>
>         check_period                    24x7
>         max_check_attempts              1
>         normal_check_interval           5
>         retry_check_interval            5
>
> I also set up a tracking logger in the poller to record "timestamp PID 
> started by PPID : Poll [Start|End] of poller"
> 2012-12-12_12:26:38 19448 started by 19442 : Poll Start of poller
> 2012-12-12_12:27:13 19448 started by 19442 : Poll End of poller
> 2012-12-12_12:28:14 19931 started by 19930 : Poll Start of poller
> 2012-12-12_12:30:14 19931 started by 19930 : Poll End of poller
> 2012-12-12_12:31:37 20467 started by 20460 : Poll Start of poller
> 2012-12-12_12:33:15 20949 started by 20946 : Poll Start of poller
> 2012-12-12_12:33:15 20467 started by 20460 : Poll End of poller
> 2012-12-12_12:33:41 20949 started by 20946 : Poll End of poller
> 2012-12-12_12:36:38 21483 started by 21478 : Poll Start of poller
> 2012-12-12_12:38:14 21971 started by 21964 : Poll Start of poller
> 2012-12-12_12:39:17 21483 started by 21478 : Poll End of poller
> 2012-12-12_12:39:18 21971 started by 21964 : Poll End of poller
> 2012-12-12_12:41:38 22500 started by 22492 : Poll Start of poller
> 2012-12-12_12:42:19 22500 started by 22492 : Poll End of poller
> 2012-12-12_12:43:14 23003 started by 22999 : Poll Start of poller
> 2012-12-12_12:45:20 23003 started by 22999 : Poll End of poller
> 2012-12-12_12:46:37 23540 started by 23535 : Poll Start of poller
> 2012-12-12_12:48:14 24025 started by 24024 : Poll Start of poller
> 2012-12-12_12:48:20 23540 started by 23535 : Poll End of poller
> 2012-12-12_12:48:41 24025 started by 24024 : Poll End of poller
> 2012-12-12_12:51:38 24558 started by 24554 : Poll Start of poller
> 2012-12-12_12:53:14 25044 started by 25041 : Poll Start of poller
> 2012-12-12_12:54:35 25044 started by 25041 : Poll End of poller
>
> As you can see, I start to get overlapping pollers. I don't understand 
> why this would happen. Any hints or clues?
>
>
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-- 


Mike Guthrie
Technical Team
___
Nagios Enterprises, LLC
Email:  mguthrie at nagios.com
Web:    www.nagios.com

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