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https://issues.apache.org/jira/browse/AMBARI-19035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Swapan Shridhar updated AMBARI-19035:
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Attachment: AMBARI-19035.patch
> LLAP startup: Ambari should not use slider anti-affinity when it's avoidable
> ----------------------------------------------------------------------------
>
> Key: AMBARI-19035
> URL: https://issues.apache.org/jira/browse/AMBARI-19035
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.4.1
> Reporter: Swapan Shridhar
> Assignee: Swapan Shridhar
> Priority: Critical
> Fix For: 2.5.0
>
> Attachments: AMBARI-19035.patch
>
>
> - YARN does not support anti-affinity, and therefore Slider implements AA by
> the means of exclusion lists - it starts containers one by one and excludes
> the nodes it gets; that adds ~2sec./machine of overhead (on openstack).
> - When the LLAP container memory size configuration is more than half of YARN
> node memory, or the same for number of cores, AA is implicit and should be
> avoided.
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