[infinispan-issues] [JBoss JIRA] (ISPN-2353) Allow KOut/VOut emitting Mapper where VOut is null

Mon Oct 1 05:19:03 EDT 2012

    [ https://issues.jboss.org/browse/ISPN-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722749#comment-12722749 ] 

Vladimir Blagojevic commented on ISPN-2353:
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We can attempt to mitigate these kinds of situations but it is better to make a generic fix - wait for full cache startup before allowing incoming remote invocations.

> Allow KOut/VOut emitting Mapper where VOut is null
> --------------------------------------------------
>
>                 Key: ISPN-2353
>                 URL: https://issues.jboss.org/browse/ISPN-2353
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Execution and Map/Reduce
>    Affects Versions: 5.2.0.Alpha4
>            Reporter: Vladimir Blagojevic
>            Assignee: Mircea Markus
>             Fix For: 5.2.0.Beta1, 5.2.0.Final
>
>
> In some cases Mapper being executed on remote nodes might produce intermediate KOut/VOut pairs where VOut is null. Should allow/account for that possibility? Currently such tasks fail with NPE. 

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