Hari Sekhon created AMBARI-6706:
-----------------------------------
Summary: Rolling restarts for HA Masters eg HDFS NameNodes
Key: AMBARI-6706
URL: https://issues.apache.org/jira/browse/AMBARI-6706
Project: Ambari
Issue Type: Improvement
Affects Versions: 1.6.1
Environment: Hortonworks HDP 2.1 with Ambari 1.6.1
Reporter: Hari Sekhon
Rolling restarts currently only work for slaves such as Datanodes in Web UI
when doing Service Actions -> Restart Datanodes. When doing a Restart All it
doesn't give any option to do a rolling restart across all components including
masters.
I usually configure HDFS NameNode HA but this means that in Ambari there is
downtime in reconfiguration even with NN HA enabled since it doesn't do rolling
restarts of the NameNodes in order to keep the cluster up.
This is needed to actually make the service really HA including HA during
routine maintenance and reconfiguration. Maybe I could workaround to shut
master components one by one manually but would be nice if Ambari could support
this directly.
Regards,
Hari Sekhon
http://www.linkedin.com/in/harisekhon
--
This message was sent by Atlassian JIRA
(v6.2#6252)
