perfSONAR User Q&A and Other Discussion

Hi I've been trying to set up a perfsonar MA and I've been running into 
problems.

I've tried both the CVS and packaged version of the java service and have had 
more luck with the cvs version.

If I use the MATestClient I eventually get an error indicating a problem 
connecting with the service.  I'm not really a Java export but Looking at the 
source code I believe that this test client will never work as the 
documentation indicates it should.  It appears to always connect to 
http://mu.dante.org.uk:8090/axis/services/MeasurementArchiveService and also 
always creates its own request file rather than taking it from an argument in 
the client-run-target.xml file.
If I use the CVS version there is a SOAPClient that appears to work as the 
documentation indicates.  When I get it to send a metadata request the 
service replies appropriately.

If I request all the data in the rrd using the following request the service 
responds correctly :
<?xml version="1.0" encoding="UTF-8"?>

<nmwg:message type="SetupDataRequest"
                   id="datarq1-1"
                   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/";>
  <!-- <nmtm:time type="unix" value="1107492095" /> -->

  <nmwg:parameters id="msgparam1">
    <nmwg:parameter name="authToken">UCL</nmwg:parameter>
  </nmwg:parameters>

  <!-- The previous fully qualified metadata *could* be
       included in the message, but it should not be necessary
       since the key's should fully define the selection
       of data wanted. -->

  <nmwg:metadata id="meta1">
    <nmwg:key>
      <nmwg:parameters id="param1">
        <nmwg:parameter 
name="file">/var/local/rrd/UCL-FNAL_CDF.rrd</nmwg:parameter>
        <nmwg:parameter name="dataSource">in</nmwg:parameter>
      </nmwg:parameters>
    </nmwg:key>
  </nmwg:metadata>

  <nmwg:metadata id="meta2">
    <nmwg:key>
      <nmwg:parameters id="param1">
        <nmwg:parameter 
name="file">/var/local/rrd/UCL-FNAL_CDF.rrd</nmwg:parameter>
        <nmwg:parameter name="dataSource">out</nmwg:parameter>
      </nmwg:parameters>
    </nmwg:key>
  </nmwg:metadata>

  <!-- triggers to indicate head of chains -->
  <nmwg:data id="data1" metadataIdRef="meta1" />
  <nmwg:data id="data2" metadataIdRef="meta2" />

</nmwg:message>


however when I try and get some "Filtered" data using the following request I 
get an error :

<nmwg:message id="msg5"
                   type="SetupDataRequest"
                   
xmlns:perfsonar="http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/";
                   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/";>
  <!-- <nmtm:time type="unix" value="1127250480" /> -->

  <nmwg:parameters id="msgparam1">
    <nmwg:parameter name="authToken">UCL</nmwg:parameter>
    <nmwg:parameter name="timeValue">11351774850</nmwg:parameter>
    <nmwg:parameter name="timeType">unix</nmwg:parameter>
  </nmwg:parameters>

  <!-- Consider situation 3, wherein we are sending down a cookedup key, this
       would be the most compact representation, and we should get back the
       same data as the previous 2 cases. -->

  <nmwg:metadata id="meta1">
    <nmwg:key>
      <nmwg:parameters id="param1">
        <nmwg:parameter 
name="file">/var/local/rrd/UCL-FNAL_CDF.rrd</nmwg:parameter>
        <nmwg:parameter name="dataSource">out</nmwg:parameter>
                        <!-- Whether or not the selection parameters make
                        sense depends on the specific backend.  RRD tool only
                        supprts these 4 parameters, so anything else will
                        produce an error.  No need for operators like in the
                        general select, just a start and end time.
                         -->
        <nmwg:parameter name="startTime">1135173885</nmwg:parameter>
        <nmwg:parameter name="endTime">1135177485</nmwg:parameter>
        <nmwg:parameter name="consolidationFunction">AVERAGE</nmwg:parameter>
        <nmwg:parameter name="resolution">60</nmwg:parameter>
      </nmwg:parameters>
    </nmwg:key>
  </nmwg:metadata>

  <!-- trigger to get stuff back -->
  <nmwg:data id="data1" metadataIdRef="meta1"/>

</nmwg:message>

with the error :
     [java] End point: 
http://193.60.252.10:8080/axis/services/MeasurementArchiveService
     [java] Request file: /usr/local/sonar/perfsonar/ant/requestdata.xml
     [java] Response file: /usr/local/sonar/perfsonar/ant/responsedata.xml
     [java] SOAPClient.makeRequest: General exception encountered by client
     [java] AxisFault
     [java]  faultCode: 
{http://schemas.xmlsoap.org/soap/envelope/}Server.userException
     [java]  faultSubcode:
     [java]  faultString: 
org.perfsonar.service.commons.exceptions.SystemException: 
RRDInformationReader.parseInformationFile: Parse error occurred
     [java]  faultActor:
     [java]  faultNode:
     [java]  faultDetail:
     [java]     {http://xml.apache.org/axis/}hostname:Lonm.hep.rcn.ucl.ac.uk

     [java] org.perfsonar.service.commons.exceptions.SystemException: 
RRDInformationReader.parseInformationFile: Parse error occurred.

Also when I try using the perfsonar UI the debug log shows :

2005-12-22 14:02:09,812 [Thread-8] DEBUG org.perfsonar.client.MARequest - 
<nmwg:message type="MetadataKeyRequest" 
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 
id="iusub1"><nmwgt:interface/></perfsonar:subject><nmwg:eventType>utilization</nmwg:eventType></nmwg:metadata><nmwg:data
 id="data1" metadataIdRef="meta1"/></nmwg:message>
2005-12-22 14:02:10,109 [Thread-8] ERROR org.perfsonar.client.MARequest - 
Problem contacting service...org.xml.sax.SAXParseException: The markup in the 
document preceding the root element must be well-formed.
2005-12-22 14:02:10,109 [Thread-8] DEBUG org.perfsonar.client.MARequest - 
Sent query using AXIS...
2005-12-22 14:02:10,109 [Thread-8] DEBUG org.perfsonar.client.MARequest - 
Received answer (?)...
2005-12-22 14:02:10,109 [Thread-8] ERROR org.perfsonar.client.MARequest - 
General exception encountered by clientjava.lang.NullPointerException
2005-12-22 14:02:10,109 [Thread-8] INFO  org.perfsonar.client.MARequest - 
Client exiting

If anyone can help me I would greatly appreciate it.

Many Thanks

Barney Garrett