perfSONAR User Q&A and Other Discussion

[Daniel Doyle <>]

Mike,

Just judging on that picture's output it looks like you might have a whole lot of tests going to that one box. If you don't use the log analysis view on the toolkit, you can shut off the cron script that generates those files. If you tend to have lots of tests, even ad hoc ones, this process can be pretty long and expensive. It's located in /etc/cron.hourly/logscraper.cron and I believe you would have to remove the file to disable it. There is already an issue in the tracker to make this process more efficient / intelligent.

There may be other things going on, but you could start with that and see how far it gets you.

-Dan

On Apr 27, 2015, at 1:50 PM, Pennington, Michael <> wrote:

Hi all –

 

As I was checking our perfsonar boxes for something, I noticed one of them was acting very very sluggish.  I reloaded the box and the same issues occurred.  I then logged in and did a “top” command and it’s showing CPU at about 80% steady.  My other box, exactly the same just at a different location (it does have some different hosts it tests with), only shows about 6% CPU. 

 

Here is a screenshot from the problem box:

 

<image001.png>

 

Any ideas what to do to get CPU back down to normal?

 

Thanks

Mike

 

Mike Pennington

Network Engineer

Connecticut Education Network (CEN)

860-622-4566

 

www.cen.ct.gov

 

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Dan Doyle

GlobalNOC Software Developer

1-812-856-3892