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Does the Splunk Universal Forwarder ever throttle its collection of data due to high system / resource utilization?

Champion

Is there any built-in mechanism (e.g. settings in limits.conf or server.conf) that would throttle the execution of the Splunk Universal Forwarder in such a way that it stops collecting perfmon data (via the Splunk Add-on for Microsoft Windows) if the host was under distress with high CPU or high memory utilization?

I am not talking about throttling data output or throughput. This is not a matter of limiting outgoing data.

Instead, I am talking about the collection scripts not running when the system is heavily loaded. I cannot reproduce it on my Windows 7 system, but I seem to recall seeing it a long time ago and someone else is reporting that they have observed this behavior.

The perfmon collections resumes once the system is no longer under distress, so that is why I suspected that there might be some configuration option that tells the forwarder to stop collecting if a certain CPU threshold is reached.

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1 Solution

Legend

AFAIK, there is no mechanism to do this, HOWEVER - if the system is overloaded, Splunk may not be able to schedule the search jobs. Splunk considers this "skipping" the jobs, and it is not a good thing. I suspect that this may be the behavior you have seen.
The only thing I can think of is: you can configure the scheduler. But I am not sure this is a good way to accomplish what you want.

View solution in original post

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Legend

AFAIK, there is no mechanism to do this, HOWEVER - if the system is overloaded, Splunk may not be able to schedule the search jobs. Splunk considers this "skipping" the jobs, and it is not a good thing. I suspect that this may be the behavior you have seen.
The only thing I can think of is: you can configure the scheduler. But I am not sure this is a good way to accomplish what you want.

View solution in original post

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Champion

Thanks @lguinn. That is what my suspicion but wanted to see if the community could confirm.

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