Aleksandr Kovalenko created AMBARI-3509:
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Summary: 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
Reporter: Aleksandr Kovalenko
Assignee: Aleksandr Kovalenko
Priority: Critical
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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