perfSONAR User Q&A and Other Discussion

[Andy Lake <>]

Hi,

You may have missed it, but Jason Zurawski responded to your note saying that he was able to login and fix it. It looks like gnuplot needed to be installed (which the logs you sent show). Once Jason installed gnuplot, things went back to normal.

Thanks,

Andy

On Sep 4, 2013, at 3:48 PM, Casey Russell <> wrote:

Also,  

I see repeated instances of this in the logs (both when the problem existed, and also now, that the graphs are working normally.  Don't know if it's related or not.

[Wed Sep 04 14:37:42 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 14:37:42 2013] owamp.cgi: DBD::mysql::db selectall_arrayref failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owamp.cgi line 244., referer: http://ps-data.kanren.net/toolkit/

Casey Russell

Network Engineer

Kansas Research and Education Network

1405 Wakarusa Dr., Ste B
Lawrence, KS 66049

(785)856-9820  ext 9809

On Wed, Sep 4, 2013 at 2:44 PM, Casey Russell <> wrote:

Andy, 

Well, as has happened far too often in my 15 year IT career, as soon as I publicly announce a problem, the machine makes me a liar and begins to behave normally.  

This problem existed every time I've tried to load the pages for the last 6 days, but just now when I tried it (to get you log files) the graphs loaded normally.

So here are the logs from earlier this morning when it was failing.  Perhaps if I know why it was failing before, I can fix it myself next time.  

[Wed Sep 04 12:20:09 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 12:20:09 2013] owampplot_histogram.cgi: Couldn't run gnuplot at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owampplot_histogram.cgi line 408., referer: http://ps-data.kanren.net/toolkit/gui/owamp_jitter/owamp.cgi?name=KANREN_OWAMP_TCP4

[Wed Sep 04 12:20:12 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 12:20:12 2013] owampplot_histogram.cgi: Can't exec "gnuplot": No such file or directory at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owampplot_histogram.cgi line 408., referer: http://ps-data.kanren.net/toolkit/gui/owamp_jitter/owamp.cgi?name=KANREN_OWAMP_TCP4

[Wed Sep 04 12:20:12 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 12:20:12 2013] owampplot_histogram.cgi: Couldn't run gnuplot at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owampplot_histogram.cgi line 408., referer: http://ps-data.kanren.net/toolkit/gui/owamp_jitter/owamp.cgi?name=KANREN_OWAMP_TCP4

[Wed Sep 04 12:25:44 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 12:25:44 2013] owampplot_histogram.cgi: Can't exec "gnuplot": No such file or directory at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owampplot_histogram.cgi line 408., referer: http://ps-data.kanren.net/toolkit/gui/owamp_jitter/owamp.cgi?name=KANREN_OWAMP_TCP4

[Wed Sep 04 12:25:44 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 12:25:44 2013] owampplot_histogram.cgi: Couldn't run gnuplot at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owampplot_histogram.cgi line 408., referer: http://ps-data.kanren.net/toolkit/gui/owamp_jitter/owamp.cgi?name=KANREN_OWAMP_TCP4

[Wed Sep 04 12:26:18 2013] [error] [client 2001:470:7c:1a2:fcba:46b4:102e:fe38] [Wed Sep  4 12:26:18 2013] owampplot_histogram.cgi: Can't exec "gnuplot": No such file or directory at /opt/perfsonar_ps/toolkit/web/root/gui/owamp_jitter/owampplot_histogram.cgi line 408., referer: http://ps-data.kanren.net/toolkit/gui/owamp_jitter/owamp.cgi?name=KANREN_OWAMP_TCP4

Casey Russell

Network Engineer

Kansas Research and Education Network

1405 Wakarusa Dr., Ste B
Lawrence, KS 66049

(785)856-9820  ext 9809

On Wed, Sep 4, 2013 at 1:43 PM, Andy Lake <> wrote:

Hi Casey,

Could you open the page in question in your browser then then send us /var/log/httpd/error_log? It looks like your host is collecting OWAMP data from browsing the various pages, looks like maybe the CGI script is hitting some type of error. 

Thanks,

Andy