perfSONAR User Q&A and Other Discussion

["Uhl, George D. (GSFC-423.0)[SGT INC]" <>]

Hi,

I’m having a similar problem that Jarvis was having a few months back with the (3.4.1-1) pS-toolkit Throughput / Latency graph GUI hanging during “Loading…”.

When I access the toolkit webpage with /esmond/perfsonar/archive/“format=json”, I get a blank screen.

I gziped a tarfile with the following files:

esmond.log

django.log

httpd/error_log

cassandra.log

pgstartup.log

I didn’t see any activity on this thread sine early January so I don’t if/how the problem was resolved.

Thanks,

George Uhl

--

Network Engineer

NASA ESDIS / SGT Inc.

Code 423

NASA Goddard Space Flight Center

Greenbelt, MD 20771

Office: 301-614-5155

Fax: 301-614-5700

email:

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From: Jarvis Zhang <>
Date: Saturday, January 3, 2015 at 1:30 AM
To: Andrew Lake <>
Cc: Peter Jacobs <>, Aaron Brown <>, "" <>
Subject: Re: [perfsonar-user] 'Throughput/Latency Graphs' page is stuck at 'Loading'

Hi Andy,

Thanks for your reply. I have restarted Cassandra, postgresql and httpd, but none of these commands return errors and the graphs still won’t load.

Attachments are the log files you mentioned.

Thanks again.

Regards,

Jarvis

在 2015年1月3日，上午12:12，Andrew Lake <> 写道：

Hi Jarvis,

The issue you are seeing is because your MA is not running properly. In Peter's case, there was an older version of the graphs on his host vs. what was on nettest.lbl.gov, so that just showed us an update needed to happen. I don't think that's the case here unfortunately, but it was a good thing to check.

The error at http://115.25.138.244/esmond/perfsonar/archive/?format=json is the giveaway. This is almost always because the MA is having trouble connecting to one of the backend databases, so we''ll need to figure out why. Try restarting the following processes:

/etc/init.d/cassandra restart

/etc/init.d/postgresql restart

/etc/init.d/httpd restart 

If any of those commands return errors let me know. If not and the graphs still won't load can you send me the following logs:

/var/log/httpd/error_log

/var/log/cassandra/cassandra.log

/var/lib/pgsql/pgstartup.log

Thanks,

Andy

On Dec 22, 2014, at 9:28 PM, Jarvis Zhang <> wrote:

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WARNING: At least one of the links in the message below goes to an IP address (e.g.10.1.1.1), which could be malicious. To learn how to protect yourself, please go here: https://commons.lbl.gov/x/_591B
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Hi Peter,

Thanks for your reply. I have to say this symptom is amazing.

So, I tried it from another endpoint, but things don’t work out.

Here is my broken box.

http://115.25.138.244/serviceTest/psGraph.cgi

Here is the url I imitate yours, and 115.25.138.245 is a healthy box.

http://115.25.138.245/serviceTest/psGraph.cgi?url="http://115.25.138.244/esmond/perfsonar/archive/

Both of them are stuck at ‘Loading’.

Maybe our problem are not the same, and by the way, Andrew’s suggestion is really tricky.

Thank you all the same.

Regards,

Jarvis

在 2014年12月22日，下午10:01，Peter Jacobs <> 写道：

Jarvis (& Aaron):

 

You and I are having a similar problem and Andrew Lake worked with me on it a couple of weeks ago - I thought we had solved it, but it is back.  Here is an interesting symptom.

 

If you go to my box, it times out after about 2 minutes (although it works 1 in 20 times).

 http://lat-gp-ftn.nbren.ca/serviceTest/psGraph.cgi

 

If I go here (Andrew’s suggestion), I get my stats almost immediately and every time.

http://nettest.lbl.gov/serviceTest/psGraph.cgi?url="http://lat-gp-ftn.nbren.ca/esmond/perfsonar/archive/

 

I don’t know what this means, but it likely narrows down the problem.

 

 

Peter

 

 

Peter E.      (506)447-3035

 

From:  [] On Behalf Of Jarvis Zhang
Sent: December-19-14 10:13 PM
To: Aaron Brown
Cc: 
Subject: Re: [perfsonar-user] 'Throughput/Latency Graphs' page is stuck at 'Loading'

 

Hi Aaron,

 

Of course, attachments are the log files in ‘/var/log/esmond/’, and the directory ‘/var/log/esmond/crashlog/‘ is empty.

 

Thanks again!

 

Regards,

Jarvis

Attachment: logfiles.tar.gz
Description: logfiles.tar.gz