perfSONAR User Q&A and Other Discussion

[Nils Jacobson <>]

Hi Pedro,

When you try the 1 week graphs you're looking for a time period exceeding the 
2-3 days limit, so it's the same issue with the older graphs.

Nils Jacobson, Network Software Programmer
Internet2
1000 Oakbrook Drive, Suite 300
Ann Arbor, MI 48104
office +1-734-352-7033 fax: +1-734-913-4255

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----- Original Message -----
> From: "Pedro Queirós" 
> <>
> To: "Nils Jacobson" 
> <>
> Cc: 
> 
> Sent: Monday, August 6, 2012 11:36:21 AM
> Subject: Re: [perfsonar-user] Error generating OWAMP graphs and checking 
> older measurements
>
> Hi Nils,
>
> thank you for your update. Any idea about my other questions?
>
> Kind Regards,
> Pedro Queirós
>
> On Mon, Aug 6, 2012 at 4:06 PM, Nils Jacobson
> <>
>  wrote:
> > Hi Pedro,
> >
> > This is a known issue in the owamp graphs. When a user tries to
> > retrieve
> > graphs for duration longer than 2-3 days, then the cgi times out
> > and throws
> > an "Internal Server Error".
> >
> > Try using the arrows provided near the bottom of the graphs.
> > Another way is
> > to copy the url in a new window and modify the sTime and eTime
> > parameters.
> > (Please note that sTime and eTime are unix timestamps).
> >
> > Thank you,
> >
> > Nils Jacobson, Network Software Programmer
> > Internet2
> > 1000 Oakbrook Drive, Suite 300
> > Ann Arbor, MI 48104
> > office +1-734-352-7033 fax: +1-734-913-4255
> >
> > Visit our website: www.internet2.edu
> > Follow us on Twitter: www.twitter.com/internet2
> > Become a Fan on Facebook: www.internet2.edu/facebook
> >
> >
> > From: Pedro Queirós 
> > <>
> >
> > Date: August 6, 2012 7:19:28 AM EDT
> > To: 
> > 
> > Subject: [perfsonar-user] Error generating OWAMP graphs and
> > checking older
> > measurements
> > Reply-To: 
> > 
> >
> > Hello,
> >
> > I'm having problems generating some OWAMP graphs. Sometimes it
> > works,
> > sometimes it doesn't, especially when trying to see the 1 week
> > graphs.
> > When it doesn't work, I get a 500 Internal Server Error - "The
> > server
> > encountered an internal error or misconfiguration and was unable to
> > complete your request."
> > I've checked the logs and I see a lot of:
> >
> > Mon Aug 06 10:16:38 2012] [error] [client 87.196.X.X] Use of
> > uninitialized value in string eq at
> > /opt/perfsonar_ps/serviceTest/cgi-bin/delayGraph.cgi line 151.,
> > referer: http://X.X.X.X/serviceTest/index.cgi?eventType=owamp
> >
> > [Mon Aug 06 11:26:48 2012] [error] [client 87.196.X.X] Can't call
> > method "getDocumentElement" on an undefined value at
> > /opt/perfsonar_ps/serviceTest/cgi-bin/delayGraph.cgi line 279.,
> > referer: http://X.X.X.X/serviceTest/index.cgi?eventType=owamp
> >
> > I'm guessing some kind of timeout is happening in the .cgi?
> >
> >
> > Also, is there a way that I can graph older measurements? For
> > example,
> > a specific day or week in the past month. And is it possible to
> > retrieve the one-way delay, loss and jitter values for a specific
> > time
> > window?
> >
> > Thank you for your time!
> >
> >
> > Kind Regards,
> > Pedro Queirós
> >
> >
> > Internet2 Fall Member Meeting
> > Sep 30-Oct 4, 2012 - Philadelphia, PA
> > http://events.internet2.edu/2012/fall-mm/
> >
> >
>