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https://issues.apache.org/jira/browse/HADOOP-4969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12660136#action_12660136
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Tsz Wo (Nicholas), SZE commented on HADOOP-4969:
------------------------------------------------
We should register a Thread.UncaughtExceptionHandler. When there is an
uncaught exception, the handler should
- log the exception,
- restart the corresponding thread if possible,
- shutdown the server if necessary.
> Threads in servers should not die silently.
> -------------------------------------------
>
> Key: HADOOP-4969
> URL: https://issues.apache.org/jira/browse/HADOOP-4969
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Reporter: Tsz Wo (Nicholas), SZE
>
> If there is an uncaught exception, some threads in a server may die silently.
> The corresponding error message does not show up in the log.
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