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https://issues.apache.org/jira/browse/HADOOP-3204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12586959#action_12586959
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Chris Douglas commented on HADOOP-3204:
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bq. All the operations done in LocalFSMerger throw IOException and hence
LocalFSMerger expects IOException. I think a better approach would be to make
FSError extend IOException or something like that. Fixing the code to catch
FSerror when IOException is expected is incorrect.
I disagree. Per HADOOP-3154 and HADOOP-3166, it is critical that any worker
threads whose death could result in data loss are handled by (or kill) the main
thread, including (perhaps especially) Errors. Besides, FSError cannot extend
both Error and IOException.
> LocalFSMerger needs to catch throwable
> --------------------------------------
>
> Key: HADOOP-3204
> URL: https://issues.apache.org/jira/browse/HADOOP-3204
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Environment: Revision: 645751
> Reporter: Koji Noguchi
>
> I haven't used trunk(0.17) so I don't know what would happen when FSError is
> thrown within LocalFSMerger thread.
> Does it have the same problem as HADOOP-3154?
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