perfSONAR User Q&A and Other Discussion

[Aaron Brown <>]

nm, I have it. Somehow it got eaten by my inbox. Thanks.

Cheers,
Aaron

On Feb 25, 2009, at 12:21 PM, Richard Carlson wrote:

> Hi Aaron;
>
> Charles created a tarball with a complete dump from the /var/log  
> directory on the UC machine.  Unfortunately I can't tell what is  
> causing the tests to fail.  I can see requests coming in from the  
> BNL node, but nothing jumps out at me as to why the test failed.   
> What should we be looking for?  (I can also point you at the tarball  
> if that would help).
>
> Rich
>
> On Feb 25, 2009, at 9:02 AM, Aaron Brown wrote:
>
> > On Feb 25, 2009, at 9:57 AM, Richard Carlson wrote:
> >
> > > Hi John;
> > >
> > > Thanks for the logs.  I see from the log extract that your server  
> > > is running 15 sec tests.  However I see other 10 & 60 sec  
> > > requests, so I'm assuming that the 10 sec tests are from people  
> > > using the command line version (10 sec is the default test period)  
> > > and some other servers are scheduling tests via the perfSONAR-Buoy  
> > > interface on their machine.
> > >
> > > Here's what I see right now.  Testing to/from MSU is working, but  
> > > we are loosing data.  The current graphs show 7 successful tests  
> > > from MSU --> BNL starting at 1:47 am and ending at 8:27.  The 4:45  
> > > am test is missing.  The graphs also show 4 tests in the opposite  
> > > direction missing 1, 3, & 6 am.
> > >
> > > I also see tests to/from OU with 4 tests from OU -> BNL at 1, 2,  
> > > 7, & 9 am with 3 in the opposite direction at midnight, 1, & 7  
> > > am.  The rest were unsuccessful.
> > >
> > > I did notice that you are testing to the psum01 node, which I  
> > > think Shawn setup as the delay server so that's why none of those  
> > > work.  I think you want to test to the psum02 node.
> > >
> > > I'm still wondering if your server is just trying to run too many  
> > > tests (19 peers in your config) and I don't know how many other  
> > > servers are requesting tests.  As I see it, we can try reducing  
> > > the number of peers, or we can get the pS folks to help guide us  
> > > on determining why some tests are failing and why some peers  
> > > aren't responding at all.
> > >
> > > Jeff/Aaron, what log files should we be looking at to determine  
> > > what is going on?
> >
> > I'd take a look in /var/log/messages, the output should be going  
> > there.
> >
> > Cheers,
> > Aaron
>
> Richard Carlson
>
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