Akira Ajisaka created HDFS-11211:
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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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