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Date: Wed, 26 Jul 2017 03:57:00 +0000 (UTC)
From: "Yiqun Lin (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.13090114.1501041378000.14853.1501041420252@Atlassian.JIRA>
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Subject: [jira] [Created] (HDFS-12198) Document missing namenode metrics
 that added recently
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archived-at: Wed, 26 Jul 2017 03:57:20 -0000

Yiqun Lin created HDFS-12198:
--------------------------------

             Summary: Document missing namenode metrics that added recently
                 Key: HDFS-12198
                 URL: https://issues.apache.org/jira/browse/HDFS-12198
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: documentation
    Affects Versions: 3.0.0-alpha4
            Reporter: Yiqun Lin
            Priority: Minor


There are some namenode metrics added recently but haven't been documented in {{Metrics.md}}. Totally following metrics and related JIRAs:

*HDFS-12043*:
{noformat}
  @Metric ("Number of successful re-replications")
   MutableCounterLong successfulReReplications;
   @Metric ("Number of times we failed to schedule a block re-replication.")
   MutableCounterLong numTimesReReplicationNotScheduled;
   @Metric("Number of timed out block re-replications")
  MutableCounterLong timeoutReReplications;
{noformat}

*HDFS-11907*:
{noformat}
@Metric("Resource check time") private MutableRate resourceCheckTime;
private final MutableQuantiles[] resourceCheckTimeQuantiles;
 {noformat}

Others:
{noformat}
@Metric("Number of blockReports from individual storages")
 final MutableRate storageBlockReport;
{noformat}
 final MutableQuantiles[] storageBlockReportQuantiles;


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