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https://issues.apache.org/jira/browse/AMBARI-8749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hari Sekhon updated AMBARI-8749:
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Environment: HDP 2.2 (was: HDP 2.1)
> Parallel Service Actions
> ------------------------
>
> Key: AMBARI-8749
> URL: https://issues.apache.org/jira/browse/AMBARI-8749
> Project: Ambari
> Issue Type: Improvement
> Affects Versions: 1.7.0
> Environment: HDP 2.2
> Reporter: Hari Sekhon
>
> Ambari is still doing independent service actions in serial rather than in
> parallel. This is basically wasting significant time waiting for different
> services to restart one after another when one service starting back up
> doesn't depend on the other service behind which they are waiting.
> Each service's actions should not wait on any other service except when there
> is a startup dependency such as HBase, SolrCloud, HA ZKFC waiting on
> ZooKeeper for example.
> Given that HDFS Balancer action doesn't block an adjacent service restart
> there must already be some mechanism for this parallelism in the code?
> Regards,
> Hari Sekhon
> http://www.linkedin.com/in/harisekhon
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