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https://issues.apache.org/jira/browse/HADOOP-2572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12560192#action_12560192
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Michael Bieniosek commented on HADOOP-2572:
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> This should be re-written to test if the file exists rather than catching the
> exception. Exceptions should be saved for unexpected problems.
This would make the patch much more complicated, because the code that
synthesizes the filename is buried in the TaskLog.Reader constructor.
> TaskLogServlet returns 410 when trying to access log early in task life
> -----------------------------------------------------------------------
>
> Key: HADOOP-2572
> URL: https://issues.apache.org/jira/browse/HADOOP-2572
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.15.0
> Reporter: Michael Bieniosek
> Fix For: 0.16.0
>
> Attachments: hadoop-2572.patch
>
>
> Early in a map task life, or for tasks that died quickly, the file
> $task/syslog might not exist. In this case, the TaskLogServlet gives a
> status 410.
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