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https://issues.apache.org/jira/browse/HADOOP-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677324#action_12677324
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Steve Loughran commented on HADOOP-5201:
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How about we create a specific feature req "create a stable wire format for
exceptions" to discuss what we and where it woudl be used
> getDiagnostics in TaskReport should return exceptions
> -----------------------------------------------------
>
> Key: HADOOP-5201
> URL: https://issues.apache.org/jira/browse/HADOOP-5201
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Santhosh Srinivasan
>
> Currently, getDiagnostics() returns Strings. When exceptions are thrown in
> user code and/or Hadoop, it would be cleaner to propagate the exception back
> to the application for better error handling. Hadoop should return the
> exceptions instead of returning string representations that correspond to
> printStackTrace() output.
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