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https://issues.apache.org/jira/browse/AMBARI-19858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15856600#comment-15856600
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Hudson commented on AMBARI-19858:
---------------------------------
SUCCESS: Integrated in Jenkins build Ambari-trunk-Commit #6663 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/6663/])
AMBARI-19858 : Add nodeCount metric in AMS. (avijayan,swagle) (avijayan:
[http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=7a072aafc8b21f0c516213532de60ba64b5a1142])
* (edit)
ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/aggregators/TimelineMetricClusterAggregatorSecond.java
* (edit)
ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/aggregators/TimelineMetricClusterAggregatorSecondTest.java
* (edit)
ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/aggregators/TimelineMetricAppAggregator.java
* (edit)
ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java
* (edit)
ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/aggregators/TimelineMetricReadHelper.java
> Add "live_hosts" metric in AMS for apps
> ---------------------------------------
>
> Key: AMBARI-19858
> URL: https://issues.apache.org/jira/browse/AMBARI-19858
> Project: Ambari
> Issue Type: Task
> Components: ambari-metrics
> Affects Versions: 2.5.0
> Reporter: Siddharth Wagle
> Assignee: Aravindan Vijayan
> Fix For: 2.5.0
>
> Attachments: AMBARI-19858-2.patch, AMBARI-19858.patch
>
>
> {quote}
> live_hosts => # count of total hosts reporting
> metrics
> live_hosts & appId = <appId> => # count of hosts hosting this appId
> {quote}
> Where appId = { namenode, datanode, hbase ... etc }
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