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https://issues.apache.org/jira/browse/HBASE-18520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16126109#comment-16126109
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Hudson commented on HBASE-18520:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-1.4 #854 (See 
[https://builds.apache.org/job/HBase-1.4/854/])
Revert "HBASE-18520 Add jmx value to determine true Master Start time" 
(apurtell: rev 16223bcb5cdd813b917b5475014b7ad209388e66)
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
HBASE-18520 Add jmx value to determine true Master Start time; amendment 
(apurtell: rev 043211760394f6e5885bbb199f632b7be4fee9cd)
* (edit) 
hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterWrapper.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java


> Add jmx value to determine true Master Start time
> -------------------------------------------------
>
>                 Key: HBASE-18520
>                 URL: https://issues.apache.org/jira/browse/HBASE-18520
>             Project: HBase
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: Zach York
>            Assignee: Zach York
>            Priority: Minor
>             Fix For: 1.4.0, 2.0.0-alpha-2
>
>         Attachments: HBASE-18520.branch-1.001.patch, 
> HBASE-18520.branch-1.002.patch, HBASE-18520.master.001.patch, 
> HBASE-18520.master.002.patch, HBASE-18520.master.003.patch
>
>
> The masterActiveTime is being set before regions are assigned. This patch 
> adds a new jmx metric to expose the final time when the master has become the 
> active master (All regions are assigned, etc.).



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