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https://issues.apache.org/jira/browse/YARN-10573?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Szilard Nemeth updated YARN-10573:
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Fix Version/s: 3.4.0
> Enhance placement rule conversion in fs2cs in weight mode and enable it by
> default
> ----------------------------------------------------------------------------------
>
> Key: YARN-10573
> URL: https://issues.apache.org/jira/browse/YARN-10573
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Priority: Major
> Labels: fs2cs
> Fix For: 3.4.0
>
> Attachments: YARN-10573-001.patch, YARN-10573-002.patch,
> YARN-10573-003.patch
>
>
> If we're using weight mode, we have much more freedom when it comes to
> placement rules.
> We need to do three things in this ticket:
> #1
> In YARN-10525, weight conversion became the default in {{fs2cs}}. This also
> means that we can support nested rules properly and also queues can be
> created under {{root}}.
> Therefore, a lot of warnings and validations inside
> {{QueuePlacementConverter}} are not necessary and only relevant if the user
> chose percentage-based conversion in the command line.
> #2
> Remove unnecessary stuff in the RuleHandler which are already supported (plus
> the test code which affected by this):
> * SPECIFIED_NOT_FIRST
> * USER_MAX_APPS_DEFAULT
> * USER_MAX_RUNNING_APPS
> #3
> Currently, users have to use "\-m" or "\-\-convert\-placement\-rules" switch
> to convert the placement rules from FS.
> Initially, we converted to the old mapping rule format, which has serious
> limitations, so we disabled the automatic conversion.
> With the new JSON-based format and placement engine, this conversion should
> happen automatically.
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