perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Hi Takatoshi;

The 302 Error usually indicates that the endpoint is wrong, or that the 
server is performing some sort of internal re-direct.  I printed out the 
HTTP response headers from this service and see the following:

> $VAR1 = bless( {
>                  '_protocol' => 'HTTP/1.1',
>                  '_content' => '',
>                  '_rc' => '302',
>                  '_headers' => bless( {
>                                         'client-date' => 'Sun, 23 Jan 2011 
> 01:03:30 GMT',
>                                         'connection' => 'close',
>                                         'client-response-num' => 1,
>                                         'location' => 
> 'http://62.40.123.162:8080/perfsonar-java-rrd-ma/services/MeasurementArchiveService',
>                                         'date' => 'Wed, 26 Jan 2011 13:04:13 
> GMT',
>                                         'client-peer' => '62.40.123.162:8080',
>                                         'content-length' => '0',
>                                         'server' => 'Apache-Coyote/1.1'
>                                       }, 'HTTP::Headers' ),
>                  '_msg' => 'Moved Temporarily',

The 'location field' is the the answer that we need here, that is 
different than the URL you are sending to below.  Try to send something 
to 
'http://62.40.123.162:8080/perfsonar-java-rrd-ma/services/MeasurementArchiveService' 
instead and see if that succeeds.  I did an Echo and it seemed to work.

There are two things at play here:

1) The pSPS client doesn't have a lot of sophisticated error handling, 
so I am not surprised that it reacts this way.  I will note this in our 
issue tracker.

2) Is the MA advertising the address you are using below to the LS?  If 
this address is incorrect, that probably needs to adjusted.  That is a 
question for whomever owns this MA though.

Thanks;

-jason

On 1/26/11 6:08 AM, Takatoshi Ikeda wrote:
> Hi.
>
> In the past, I could get the interface usage data of GEANT
> from their RRDMA service by perfSONAR-PS's client (client.pl)
> but I can not get now with following error message.
>
> Is the any information?
>
>
> # /opt/perfsonar_ps/lookup_service/bin/client.pl 
> http://62.40.123.162:8080/geant2-java-rrd-ma/services/MeasurementArchiveService
>  SetupDataRequest-IFname-Time.xml
> Error sending request to service: 302 Moved Temporarily at 
> /opt/perfsonar_ps/lookup_service/bin/client.pl line 165
>
>
> [Request message]
> <?xml version="1.0" encoding="UTF-8"?>
>
> <nmwg:message 
> xmlns:netutil="http://ggf.org/ns/nmwg/characteristic/utilization/2
> .0/"
>                xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/";
>                xmlns:nmwgt="http://ggf.org/ns/nmwg/topology/2.0/";
>                type="SetupDataRequest" id="SetupDataRequest1">
>
>    <nmwg:metadata xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/";
>                   id="metadata1">
>      <netutil:subject 
> xmlns:netutil="http://ggf.org/ns/nmwg/characteristic/utiliz
> ation/2.0/"
>                       id="s-in-netutil-1">
>        <nmwgt:interface xmlns:nmwgt="http://ggf.org/ns/nmwg/topology/2.0/";>
>            <nmwgt:hostName>rt1.gen.ch.geant2.net</nmwgt:hostName>
>            <nmwgt:ifName>so-7/2/0</nmwgt:ifName>
>        </nmwgt:interface>
>      </netutil:subject>
>      
> <nmwg:eventType>http://ggf.org/ns/nmwg/characteristic/utilization/2.0</nmwg:
> eventType>
>    </nmwg:metadata>
>
>    <nmwg:metadata xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/";
>                   id="metadata1c">
>      <select:subject xmlns:select="http://ggf.org/ns/nmwg/ops/select/2.0/";
>                      id="subject1c" metadataIdRef="metadata1" />
>      <select:parameters id="param2c" 
> xmlns:select="http://ggf.org/ns/nmwg/ops/sel
> ect/2.0/">
>        <nmwg:parameter name="startTime">1293004000</nmwg:parameter>
>        <nmwg:parameter name="endTime">1293005238</nmwg:parameter>
>        <nmwg:parameter name="consolidationFunction">AVERAGE</nmwg:parameter>
>        <nmwg:parameter name="resolution">60</nmwg:parameter>
>      </select:parameters>
>      <nmwg:eventType>http://ggf.org/ns/nmwg/ops/select/2.0</nmwg:eventType>
>    </nmwg:metadata>
>    <nmwg:data xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/";
>               id="data1" metadataIdRef="metadata1c"/>
>
> </nmwg:message>
>
>
>
> -Takatoshi Ikeda, APAN-JP and JGN2plus