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Posted to issues@tez.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2016/02/08 16:16:39 UTC

[jira] [Created] (TEZ-3102) Fetch failure of a speculated task causes job hang

Jason Lowe created TEZ-3102:
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             Summary: Fetch failure of a speculated task causes job hang
                 Key: TEZ-3102
                 URL: https://issues.apache.org/jira/browse/TEZ-3102
             Project: Apache Tez
          Issue Type: Bug
    Affects Versions: 0.7.0
            Reporter: Jason Lowe
            Assignee: Jason Lowe
            Priority: Critical


If a task speculates then succeeds, one task will be marked successful and the other killed. Then if the task retroactively fails due to fetch failures the Tez AM will fail to reschedule another task. This results in a hung job.



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