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https://issues.apache.org/jira/browse/AMBARI-8189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15891027#comment-15891027
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Dheeren Beborrtha commented on AMBARI-8189:
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[~ivanmi] I also see that this patch is already in Ambari 2.2.2. I could set
parallel_execution=1 in ambari. I am yet to see the test results. Can you
please confirm/share your test results and any pitfall of enabling this?
Another parallel question: The default concurrency is set to 5 in Ambari code.
Can this be exposed through ambari-agent.ini property?
> Ambari agent support for parallel task execution during deployment
> ------------------------------------------------------------------
>
> Key: AMBARI-8189
> URL: https://issues.apache.org/jira/browse/AMBARI-8189
> Project: Ambari
> Issue Type: Task
> Affects Versions: 2.0.0
> Reporter: Ivan Mitic
> Assignee: Ivan Mitic
> Attachments: AMBARI-8189.2.patch, AMBARI-8189.patch
>
>
> Ambari serializes all operations on the node, and by actually parallelizing
> the independent setup activities, deployment time would significantly
> decrease. Ambari stack definition already defines a notion of service
> dependencies, so some basic infra requirements for parallel execution are
> already in place.
> This is a tracking Jira where we can discuss this proposal and work on the
> design/prototype and patch.
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