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https://issues.apache.org/jira/browse/AMBARI-24483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17611669#comment-17611669
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Zhiguo Wu commented on AMBARI-24483:
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Thanks [~jonathanhurley] ! Would you like to create another PR for trunk branch
?
> Timeline v2 HBase Does Start After Upgrade Due to Missing System Queue
> ----------------------------------------------------------------------
>
> Key: AMBARI-24483
> URL: https://issues.apache.org/jira/browse/AMBARI-24483
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 2.7.0
> Reporter: Jonathan Hurley
> Assignee: Jonathan Hurley
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 2.7.1
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> *During Upgrade*
> # If cluster is big i.e >50GB and each machines has minimum 10GB resources
> #* If *yarn-system* queue doesn't exist then we shall create a queue with
> *zero capacity*.
> #* All the necessary setting for queue such as *queue-priority*,
> *queue-acls*, *disabling pre-emption* for this queue are set.
> #* ats-hbase app queue name also set to *yarn-system*
> #* But *do NOT* enable system service mode by default. Let upgrade happens in
> embedded mode successfully.
> #* Post upgrade, admin can change flag to enable system_service mode if
> required by providing sufficient capacity to *yarn-system* queue. This step
> *need to be documented.*
> # If cluster is small
> #* Continue upgrade in embedded mode without creating a yarn-system queue.
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