Hari Sekhon created AMBARI-8749:
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Summary: 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 2.1
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 starting back up doesn't depend
on the other service behind which they are waiting.
Each service's actions should not wait 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?
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