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From "Lou DeGenaro (JIRA)" <...@uima.apache.org>
Subject [jira] [Closed] (UIMA-3365) DUCC job driver (JD) ERROR client.WorkItemListener onBeforeProcessCASHandler N/A seqNo:null casId:1602519189 java.lang.NullPointerException
Date Fri, 01 Nov 2013 09:51:26 GMT

     [ https://issues.apache.org/jira/browse/UIMA-3365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lou DeGenaro closed UIMA-3365.
------------------------------


code delivered.

> DUCC job driver (JD) ERROR client.WorkItemListener onBeforeProcessCASHandler     N/A
seqNo:null casId:1602519189 java.lang.NullPointerException
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: UIMA-3365
>                 URL: https://issues.apache.org/jira/browse/UIMA-3365
>             Project: UIMA
>          Issue Type: Bug
>          Components: DUCC
>            Reporter: Lou DeGenaro
>            Assignee: Lou DeGenaro
>             Fix For: 1.0-Ducc
>
>
> Job 93735.
> It seems that the first callback expected by JD for work item 659 comes.  However the
second callback does not arrive within 60 seconds, so the work items is reaped.  Then, 2 seconds
later the missing callback finally (and unexpectedly) arrives causing the NPE in JD.
> The Job seems to actually run to completion, but is flagged with lost work items.  This
makes sense, since if the JP does get the work item it will process it.  However, the JD will
begin queuing "extra" work items since it does not understand that such work items are not
really lost.  This may increasingly aggravate the problem by having the JD put out to queue
more work items than the present JP capacity can handle.



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