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From "Akira Ajisaka (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11211) Add a time unit to the DataNode client trace format
Date Tue, 06 Dec 2016 07:20:58 GMT
Akira Ajisaka created HDFS-11211:
------------------------------------

             Summary: Add a time unit to the DataNode client trace format 
                 Key: HDFS-11211
                 URL: https://issues.apache.org/jira/browse/HDFS-11211
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
            Reporter: Akira Ajisaka
            Priority: Minor


{code:title=DataNode.java}
  public static final String DN_CLIENTTRACE_FORMAT =
        "src: %s" +      // src IP
        ", dest: %s" +   // dst IP
        ", bytes: %s" +  // byte count
        ", op: %s" +     // operation
        ", cliID: %s" +  // DFSClient id
        ", offset: %s" + // offset
        ", srvID: %s" +  // DatanodeRegistration
        ", blockid: %s" + // block id
        ", duration: %s";  // duration time
{code}
The time unit of the duration is nanosecond, but it is not documented.



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