[jira] [Commented] (HDFS-12198) Document missing namenode metrics that added recently

["Yiqun Lin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-12198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116027#comment-16116027 ] 

Yiqun Lin commented on HDFS-12198:
----------------------------------

Hi [~ajisakaa], could you please help review on this? Thanks in advance.

> 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
>            Assignee: Yiqun Lin
>            Priority: Minor
>         Attachments: HDFS-12198.001.patch
>
>
> 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}
> *HADOOP-14502*:
> {noformat}
> @Metric("Number of blockReports from individual storages")
>  final MutableRate storageBlockReport;
>  final MutableQuantiles[] storageBlockReportQuantiles;
> {noformat}



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