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  1. Hadoop HDFS
  2. HDFS-10963

Reduce log level when network topology cannot find enough datanodes.

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.8.0, 3.0.0-alpha2
    • Component/s: None
    • Labels:
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      Credit to Harsh J who reported this.

      The change made by HDFS-10320 now causes all 1-rack cluster to keep printing below:
      WARN org.apache.hadoop.net.NetworkTopology
      Failed to find datanode (scope="" excludedScope="/default").

      This was added in HDFS-10320 to replace an exception that caused NN terminate. A warn log was added. But thinking closely, this should be debug to reduce confusion.

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            • Assignee:
              xiaochen Xiao Chen
              Reporter:
              xiaochen Xiao Chen
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              • Created:
                Updated:
                Resolved: