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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

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.8.0, 3.0.0-alpha1
    • datanode
    • None
    • 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

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. HDFS-8738 Limit Exceptions thrown by DataNode when a client makes socket connection and sends an empty message

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-13875 EOFException log spam in Datanode

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Patch Available
          supercedes

          Bug - A problem which impairs or prevents the functions of the product. AMBARI-12420 Alert "DataNode Process" creates ERROR messages in datanode log

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              cnauroth Chris Nauroth
              cnauroth Chris Nauroth
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              Dates

                Created:
                Updated:
                Resolved: