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  1. Hadoop HDFS
  2. HDFS-9572

Prevent DataNode log spam if a client connects on the data transfer port but sends no data.

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: datanode
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      Monitoring tools may choose to check liveness of the DataNode's data transfer port by connecting to it. The monitoring tool will close the connection immediately after establishment without sending any data. When this happens, the DataNode encounters an unexpected EOF and logs a full stack trace. This creates unneeded noise in the logs.

        Attachments

        1. HDFS-9572.001.patch
          2 kB
          Chris Nauroth

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            • Assignee:
              cnauroth Chris Nauroth
              Reporter:
              cnauroth Chris Nauroth

              Dates

              • Created:
                Updated:
                Resolved:

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