[ 
https://issues.apache.org/jira/browse/YARN-3965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14653493#comment-14653493
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Hudson commented on YARN-3965:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #1007 (See 
[https://builds.apache.org/job/Hadoop-Yarn-trunk/1007/])
YARN-3965. Add startup timestamp to nodemanager UI. Contributed by Hong Zhiguo 
(jlowe: rev 469cfcd695da979e56c83d9303f9bc1f898c08ce)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/NodePage.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/webapp/TestNMWebServices.java
* hadoop-yarn-project/CHANGES.txt
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeManager.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/dao/NodeInfo.java


> Add startup timestamp to nodemanager UI
> ---------------------------------------
>
>                 Key: YARN-3965
>                 URL: https://issues.apache.org/jira/browse/YARN-3965
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>            Reporter: Hong Zhiguo
>            Assignee: Hong Zhiguo
>            Priority: Minor
>             Fix For: 2.8.0
>
>         Attachments: YARN-3965-2.patch, YARN-3965-3.patch, YARN-3965-4.patch, 
> YARN-3965.patch
>
>
> We have startup timestamp for RM already, but don't for NM.
> Sometimes cluster operator modified configuration of all nodes and kicked off 
> command to restart all NMs.  He found out it's hard for him to check whether 
> all NMs are restarted.  Actually there's always some NMs didn't restart as he 
> expected, which leads to some error later due to inconsistent configuration.
> If we have startup timestamp for NM,  the operator could easily fetch it via 
> NM webservice and find out which NM didn't restart, and take mannaul action 
> for it.



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