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Date: Wed, 23 Apr 2014 15:00:14 +0200
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 <CAAZ-arCmAkv9YBNseGMtsWz4s9h0CWEn-Dhv1yUYNX=VJYnvjg@mail.gmail.com>
Subject: Update on BES Provider implementation
From: Shahbaz Memon <m.memon@fz-juelich.de>
To: <dev@airavata.apache.org>
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Hi all,

I am facing one issue while testing the bes's pull monitor implementation.

Before stating my issue, let me write details on the current implementation=
 state,

For the bes extension I have forked the github repository under the followi=
ng url,

https://github.com/msmemon/airavata

In the forked sources most of the classes are not touched except a couple o=
f modifications and additions. I have also modified project poms with multi=
ple dependency exclusions to avoid class loading horrors.

There is a partially tested implementation available with input / output ha=
ndlers, provider,and monitor classes.

For the monitoring purposes (as it is the place where I am facing an issue)=
, I have written a pull monitor that is very similar to the QStat one, the =
only exception is the connection object which contains a different credenti=
al and proxy client instance that is suitable for BES supported endpoints.

Now my issue is,

during the job submission process, input handler and provider is properly i=
nvoked, and after that, BESPullJobMonitor [1] is throwing a NPE, thus my wo=
rkflow is not reaching the final phase of output handler invocation and com=
pletion.

java.lang.NullPointerException
        at org.apache.airavata.job.monitor.impl.pull.bes.BESPullJobMonitor.=
startPulling(BESPullJobMonitor.java:173)
        at org.apache.airavata.job.monitor.impl.pull.bes.BESPullJobMonitor.=
run(BESPullJobMonitor.java:60)
        at java.lang.Thread.run(Thread.java:744)

May be I am not rightly following the NEW monitoring extensions. Any feedba=
ck is more than welcome.

[1] https://github.com/msmemon/airavata/blob/master/tools/job-monitor/src/m=
ain/java/org/apache/airavata/job/monitor/impl/pull/bes/BESPullJobMonitor.ja=
va

Thanks in advance,

Shahbaz


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Forschungszentrum Juelich GmbH
52425 Juelich
Sitz der Gesellschaft: Juelich
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender),
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">
</head>
<body>
<div dir=3D"ltr">Hi all,&nbsp;
<div><br>
</div>
<div>I am facing one issue while testing the bes's pull monitor implementat=
ion.&nbsp;</div>
<div><br>
</div>
<div>Before stating my issue, let me write details on the current implement=
ation state,&nbsp;</div>
<div><br>
</div>
<div>
<div>For the bes extension I have forked the github repository under the fo=
llowing url,&nbsp;<br>
</div>
<div><br>
</div>
<div><a href=3D"https://github.com/msmemon/airavata">https://github.com/msm=
emon/airavata</a><br>
</div>
</div>
<div><br>
</div>
<div>In the forked sources most of the classes are not touched except a cou=
ple of modifications and additions. I have also modified project poms with =
multiple dependency exclusions to avoid class loading horrors.&nbsp;<br>
</div>
<div><br>
</div>
<div>
<div>There is a partially tested implementation available with input / outp=
ut handlers, provider,and monitor classes.&nbsp;</div>
</div>
<div><br>
</div>
<div>
<div>For the monitoring purposes (as it is the place where I am facing an i=
ssue), I have written a pull monitor that is very similar to the QStat one,=
 the only exception is the connection object which contains a different cre=
dential and proxy client instance
 that is suitable for BES supported endpoints.&nbsp;</div>
</div>
<div><br>
</div>
<div>Now my issue is,&nbsp;</div>
<div><br>
</div>
<div>during the job submission process, input handler and provider is prope=
rly invoked, and after that, BESPullJobMonitor [1] is throwing a NPE, thus =
my workflow is not reaching the final phase of output handler invocation an=
d completion.&nbsp;<br>
</div>
<div><br>
</div>
<div>
<div>java.lang.NullPointerException</div>
<div>&nbsp; &nbsp; &nbsp; &nbsp; at org.apache.airavata.job.monitor.impl.pu=
ll.bes.BESPullJobMonitor.startPulling(BESPullJobMonitor.java:173)</div>
<div>&nbsp; &nbsp; &nbsp; &nbsp; at org.apache.airavata.job.monitor.impl.pu=
ll.bes.BESPullJobMonitor.run(BESPullJobMonitor.java:60)</div>
<div>&nbsp; &nbsp; &nbsp; &nbsp; at java.lang.Thread.run(Thread.java:744)</=
div>
</div>
<div><br>
</div>
<div>May be I am not rightly following the NEW monitoring extensions. Any f=
eedback is more than welcome.</div>
<div><br>
</div>
<div>[1] <a href=3D"https://github.com/msmemon/airavata/blob/master/tools/j=
ob-monitor/src/main/java/org/apache/airavata/job/monitor/impl/pull/bes/BESP=
ullJobMonitor.java">
https://github.com/msmemon/airavata/blob/master/tools/job-monitor/src/main/=
java/org/apache/airavata/job/monitor/impl/pull/bes/BESPullJobMonitor.java</=
a><br>
</div>
<div><br>
</div>
<div>Thanks in advance,<br>
</div>
<div><br>
</div>
<div>
<div>Shahbaz<br>
<br>
</div>
</div>
</div>
<br>
<font face=3D"Arial" color=3D"Black" size=3D"1"><br>
---------------------------------------------------------------------------=
---------------------<br>
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---------------------<br>
Forschungszentrum Juelich GmbH<br>
52425 Juelich<br>
Sitz der Gesellschaft: Juelich<br>
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498<br>
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher<br>
Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender),<br>
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,<br>
Prof. Dr. Sebastian M. Schmidt<br>
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---------------------<br>
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---------------------<br>
<br>
</font>
</body>
</html>

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