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  1. Hadoop YARN
  2. YARN-4050

NM event dispatcher may blocked by LogAggregationService if NameNode is slow

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    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
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    Description

      env: nm restart and log aggregation is enabled.
      NN is almost dead, when we restart NM, NM event dispatcher is blocked until NN returns to normal.It seems. NM recovered app and send APPLICATION_START event to log aggregation service, it will check log dir permission in HDFS(BLOCKED)

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            Unassigned Unassigned
            sandflee sandflee
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              Created:
              Updated: