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Posted to hdfs-dev@hadoop.apache.org by "Akira AJISAKA (JIRA)" <ji...@apache.org> on 2013/08/30 01:37:52 UTC

[jira] [Created] (HDFS-5144) Document time unit to NameNodeMetrics.java

Akira AJISAKA created HDFS-5144:
-----------------------------------

             Summary: Document time unit to NameNodeMetrics.java
                 Key: HDFS-5144
                 URL: https://issues.apache.org/jira/browse/HDFS-5144
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: documentation
    Affects Versions: 2.1.0-beta
            Reporter: Akira AJISAKA
            Priority: Minor


in o.a.h.hdfs.server.namenode.metrics.NameNodeMetrics.java, metrics are declared as follows:

{code}
  @Metric("Duration in SafeMode at startup") MutableGaugeInt safeModeTime;
  @Metric("Time loading FS Image at startup") MutableGaugeInt fsImageLoadTime;
{code}

Since some users may confuse which unit (sec or msec) is correct, they should be documented.

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