perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Hey Roderick;

Other than the not helpful suggestion of 'maybe a memory leak', I am not sure 
I have any ideas.  Can you please watch that server and advise if it happens 
again?  You may also want to catalog which kernel and nic driver is being 
used in the event it does happen again, or changes.  

Thanks;

-jason

On Apr 9, 2014, at 11:39 PM, Roderick Mooi 
<>
 wrote:

> Hi
> 
> Referring to the attached graph, a few days ago the incoming throughput to 
> one of our ps servers dropped drastically. Some troubleshooting revealed no 
> explanation but isolated the problem to the server (or server-router 
> interface). Yesterday (9 Apr), the server was updated around 9:00 and 
> rebooted at 15:00. The problem disappeared (the graph indicates around 
> 12:00) following the update and bwctl test results resumed to normal. Does 
> anyone have an explanation for this?
> 
> The yum history is also attached if needed.
> 
> Thanks!
> 
> Roderick
> 
> 
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> <perfsonar3_throughput_reboot.png><yum history.txt>