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https://issues.apache.org/jira/browse/AMBARI-3509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13794163#comment-13794163
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Aleksandr Kovalenko commented on AMBARI-3509:
---------------------------------------------
committed to trunk
> Reassign Master: Restart services should be the part of Reassign master wizard
> ------------------------------------------------------------------------------
>
> Key: AMBARI-3509
> URL: https://issues.apache.org/jira/browse/AMBARI-3509
> Project: Ambari
> Issue Type: Task
> Components: client
> Affects Versions: 1.4.2
> Reporter: Aleksandr Kovalenko
> Assignee: Aleksandr Kovalenko
> Priority: Critical
> Fix For: 1.4.2
>
> Attachments: AMBARI-3509.patch
>
>
> NameNode and ResourceManager/Jobtracker are primary master components of
> Hadoop. After Moving them to another hosts, its important to validate the
> usability status of all hadoop services. Also other services have dependency
> on HDFS and Yarn/Mapreduce as following:
> * Reassigning Namenode requires Nagios, Ganglia,HDFS, zookeeper, HBase, Oozie
> restart.
> * Reassigning ResourceManager requires Nagios, Ganglia, Yarn and Oozie
> restart.
> * Reassigning SNameNode requires HDFS, Nagios and Ganglia restart.
> For HDFS component reassignment, Step4 of Reassign master wizard
> ("Install,Start and Test") has "Stop HDFS" and step6 ("Install Start and
> Test") has "Start HDFS" as last stage of the step.
> Instead of these "Stop HDFS" and "Start HDFS", We should have "Stop Services"
> and "Start Services". Running smoke test tasks should be part of "Start
> Services". This can be done by passing parameter run_smoke_test as true with
> start services URL:
> /clusters/{clusterName}/services?params/run_smoke_test=true
> Same holds for ResourceManager/Jobtracker reassignment.
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