perfSONAR User Q&A and Other Discussion

[Sven Ubik <>]

Hi all,

my Python RRD MA version 0.1-20 returns empty response while Java RRD MA
returns correct response for the same request. I tried to connect Python
client to Java RRD MA server and it works as well. No errors are logged
by Python RRD MA server at -l DEBUG level.

Attached files:

SetupDataRequest-FilterRRDSelect-Cesnet.xml  - request
response-java.xml                     - response from Java RRD MA
response-python.xml                   - response from Python RRD MA
rrd-database_Cesnet.xml               - RRD configuration of Python RRD MA

Any ideas where can be the problem?

Both servers are not open to public, but I can include your network
if you want to connect.

Regards,

Sven
<?xml version='1.0' encoding='UTF-8'?>

<!-- Purpose:	We send down metadata (no key) and some filter parameters, 
		we hope to get back just data.  -->
<!-- Version:	$Id: SetupDataRequest-FilterRRDSelect-2.xml,v 1.8 2006/02/09 05:32:51 zurawski Exp $ -->

<nmwg:message id="msg4"
	      type="SetupDataRequest"		   
	      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/";
	      xmlns:select="http://ggf.org/ns/nmwg/ops/select/2.0/";>

  <!-- Optional message level parameters -->
  <nmwg:parameters id="msgparam1">
    <nmwg:parameter name="authToken">CESNET</nmwg:parameter>
    <nmwg:parameter name="timeValue">1142337900</nmwg:parameter>	
    <nmwg:parameter name="timeType">unix</nmwg:parameter>     			
  </nmwg:parameters>   

  <nmwg:metadata id="meta1">
    <netutil:subject id="iusub1">
      <nmwgt:interface>

        <nmwgt:ifAddress type="ipv4">195.113.156.4</nmwgt:ifAddress>
        <nmwgt:direction>in</nmwgt:direction>

<!--
        <nmwgt:ifAddress type="ipv4">198.32.8.34</nmwgt:ifAddress>
        <nmwgt:hostName>atlang-hstnng.abilene.ucaid.edu</nmwgt:hostName>
        <nmwgt:ifName>unknown</nmwgt:ifName>
        <nmwgt:ifDescription>atla->hstn:oc192(p2p)::show:intracloud</nmwgt:ifDescription>
        <nmwgt:direction>in</nmwgt:direction>
        <nmwgt:authRealm>Internet2</nmwgt:authRealm>
        <nmwgt:capacity>1000BaseT</nmwgt:capacity>
-->
      </nmwgt:interface>
    </netutil:subject>
    <nmwg:eventType>utilization</nmwg:eventType>
  </nmwg:metadata>

  <!-- The second metadata is used to filter the results of the first operation, 
       this basically means our 'subject' is the first metadata block, then we
       apply a parameter block to limit/transform the resulting data. -->
  <nmwg:metadata id="meta2">
    <select:subject id="iusub2" metadataIdRef="meta1"/>

    <select:parameters id="param1">
      <nmwg:parameter name="startTime">1142926720</nmwg:parameter>
      <nmwg:parameter name="endTime">1142926740</nmwg:parameter>
      <nmwg:parameter name="consolidationFunction">AVERAGE</nmwg:parameter>
      <nmwg:parameter name="resolution">10</nmwg:parameter>
    </select:parameters>

    <nmwg:eventType>select</nmwg:eventType>
        
  </nmwg:metadata>

  <!-- This is the specific data we wish to see -->
  <nmwg:data id="data1" metadataIdRef="meta2"/>

</nmwg:message>   

<?xml version="1.0" encoding="UTF-8"?>

<nmwg:message xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/"; id="localhost.-669a278f:10a1bc39bfc:-7f4e">

   <nmwg:metadata id="meta1">

      <perfsonar:subject xmlns:perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/"; id="subj1">

         <nmwgt:interface xmlns:nmwgt="http://ggf.org/ns/nmwg/topology/2.0/";>

            <nmwgt:hostName>r85.cesnet.cz</nmwgt:hostName>

            <nmwgt:ifName>Te1/4</nmwgt:ifName>

            <nmwgt:ifDescription> CESNET</nmwgt:ifDescription>

            <nmwgt:ifAddress type="ipv4">195.113.156.4</nmwgt:ifAddress>

            <nmwgt:direction>in</nmwgt:direction>

            <nmwgt:authRealm>CESNET</nmwgt:authRealm>

         </nmwgt:interface>

      </perfsonar:subject>

      <nmwg:eventType>utilization</nmwg:eventType>

   </nmwg:metadata>

   <nmwg:data id="localhost.-669a278f:10a1bc39bfc:-7f4f" metadataIdRef="meta1">

      <nmwg:datum timeValue="1142926730" value="1.26785678E7" />

      <nmwg:datum timeValue="1142926740" value="1.29994506E7" />

   </nmwg:data>

</nmwg:message>



Response received from the web service:
<nmwg:message xmlns="http://ggf.org/ns/nmwg/base/2.0/"; xmlns:netutil="http://ggf.org/ns/nmwg/characteristic/utilization/2.0/"; xmlns:nmtm="http://ggf.org/ns/nmwg/time/2.0/"; xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/"; xmlns:nmwgt="http://ggf.org/ns/nmwg/topology/2.0/"; xmlns:perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/"; xmlns:select="http://ggf.org/ns/nmwg/ops/select/2.0/";><nmwg:metadata id="meta1"><perfsonar:subject><nmwgt:interface><nmwgt:ipAddress type="ipv4"/><nmwgt:hostName>r85.cesnet.cz</nmwgt:hostName><nmwgt:ifName>Te1/4</nmwgt:ifName><nmwgt:ifDescription>GN2 -&gt; CESNET</nmwgt:ifDescription><nmwgt:ifAddress type="ipv4">195.113.156.4</nmwgt:ifAddress><nmwgt:direction>in</nmwgt:direction><nmwgt:authRealm>CESNET</nmwgt:authRealm></nmwgt:interface></perfsonar:subject><nmwg:eventType>utilization</nmwg:eventType></nmwg:metadata><nmwg:data id="datadatameta1" metadataIdRef="meta1"><nmwg:datum/><nmwg:datum/></nmwg:data></nmwg:message>

<?xml version="1.0" encoding="UTF-8"?>

<nmwg:store xmlns="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/"; 
                 xmlns:perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/"; 
                 xmlns:nmwg="http://ggf.org/ns/nmwg/base/2.0/"; 
                 xmlns:nmtm="http://ggf.org/ns/nmwg/time/2.0/"; 
                 xmlns:nmwgt="http://ggf.org/ns/nmwg/topology/2.0/";>



    <nmwg:metadata id="meta1">
        <nmwg:subject id="subj1">
            <nmwgt:interface>
                <nmwgt:hostName>r85.cesnet.cz</nmwgt:hostName>
                <nmwgt:ifAddress type="ipv4">195.113.156.4</nmwgt:ifAddress>
                <nmwgt:ifName>Te1/4</nmwgt:ifName>
                <nmwgt:ifDescription>GN2 -> CESNET</nmwgt:ifDescription>
                <nmwgt:direction>in</nmwgt:direction>
                <nmwgt:authRealm>CESNET</nmwgt:authRealm>
            </nmwgt:interface>
        </nmwg:subject>
        <nmwg:eventType>utilization</nmwg:eventType>
    </nmwg:metadata>

    <nmwg:data id="data1" metadataIdRef="meta1">
        <nmwg:key>
            <nmwg:parameters>
              <nmwg:parameter name="file">/usr/local/sonar/snmp_rrd/cesnet_gn2.rrd</nmwg:parameter>
                <nmwg:parameter name="dataSource">bytes_in</nmwg:parameter>
            </nmwg:parameters>
        </nmwg:key>
    </nmwg:data>

</nmwg:store>