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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7124) CLONE - Log aggregation deletes/renames while file is open
Date Tue, 29 Aug 2017 20:08:00 GMT
Junping Du created YARN-7124:
--------------------------------

             Summary: CLONE - Log aggregation deletes/renames while file is open
                 Key: YARN-7124
                 URL: https://issues.apache.org/jira/browse/YARN-7124
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 2.8.2
            Reporter: Daryn Sharp
            Assignee: Jason Lowe
            Priority: Critical


YARN-6288 changes the log aggregation writer to be an autoclosable.  Unfortunately the try-with-resources
block for the writer will either rename or delete the log while open.

Assuming the NM's behavior is correct, deleting open files only results in ominous WARNs in
the nodemanager log and increases the rate of logging in the NN when the implicit try-with-resource
close fails.  These red herrings complicate debugging efforts.



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