perfSONAR User Q&A and Other Discussion

[Richard Carlson <>]

Jeff;

These are the log files form the receiving side.  The pS-SB is running  
on the BNL node.

John, would you please create a tarball of the /var/log dir on lhcmon  
and email/post it on a URL?
Thanks.

Rich

On Feb 25, 2009, at 12:32 PM, Jeff W. Boote wrote:

> Rich - in looking at that log dir, I don't see any of the regularly  
> scheduled tests... Only some on-demand ones. These logs don't seem  
> to match the data you describe below... where are you seeing this  
> data?
>
> jeff
>
> On Feb 25, 2009, at 10:21 AM, 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
> >
> > 1000 Oakbrook Dr
> > Ann Arbor, MI  48104
> >
> > P: 734-352-7043
> > C: 630-251-4572

Richard Carlson

1000 Oakbrook Dr
Ann Arbor, MI  48104

P: 734-352-7043
C: 630-251-4572