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  1. Hadoop HDFS
  2. HDFS-10963

Reduce log level when network topology cannot find enough datanodes.

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • None
    • 2.8.0, 3.0.0-alpha2
    • None
    • 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.

      Attachments

        1. HDFS-10963.01.patch
          2 kB
          Xiao Chen

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            xiaochen Xiao Chen
            xiaochen Xiao Chen
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              Updated:
              Resolved:

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