[infinispan-issues] [JBoss JIRA] (ISPN-4677) Map/Reduce job fails with the wrong explanation on underlying TimeoutException

[Sanne Grinovero (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-4677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999659#comment-12999659 ] 

Sanne Grinovero commented on ISPN-4677:
---------------------------------------

Yes that would work better. But is it really complex to track different failure causes in a different way? For example you could use a different Exception type.

> Map/Reduce job fails with the wrong explanation on underlying TimeoutException
> ------------------------------------------------------------------------------
>
>                 Key: ISPN-4677
>                 URL: https://issues.jboss.org/browse/ISPN-4677
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Execution and Map/Reduce
>    Affects Versions: 7.0.0.Beta1
>            Reporter: Sanne Grinovero
>            Assignee: Vladimir Blagojevic
>             Fix For: 7.0.0.Beta2
>
>
> I'm running a task which is throwing the following exception during the Map phase:
> {noformat}
> org.infinispan.util.concurrent.TimeoutException: Node main-NodeC-22183 timed out{noformat}
> The user facing error however is this very confusing message:
> {noformat}org.infinispan.commons.CacheException: java.util.concurrent.ExecutionException: Map phase executing at main-NodeA-39904 did not complete within 0 sec timeout{noformat}
> I have no timeout enabled.
> The problem is the instanceof operation on the cause of the error in org.infinispan.distexec.mapreduce.MapReduceTask.executeMapPhaseWithLocalReduction(Map<KOut, VOut>): the check on the type only is not good enough.



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