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From "Kuhu Shukla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7244) ShuffleHandler is not aware of disks that are added
Date Fri, 22 Sep 2017 14:14:01 GMT
Kuhu Shukla created YARN-7244:
---------------------------------

             Summary: ShuffleHandler is not aware of disks that are added
                 Key: YARN-7244
                 URL: https://issues.apache.org/jira/browse/YARN-7244
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Kuhu Shukla
            Assignee: Kuhu Shukla


The ShuffleHandler permanently remembers the list of "good" disks on NM startup. If disks
later are added to the node then map tasks will start using them but the ShuffleHandler will
not be aware of them. The end result is that the data cannot be shuffled from the node leading
to fetch failures and re-runs of the map tasks.



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