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https://issues.apache.org/jira/browse/YARN-6689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16084806#comment-16084806
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Xuan Gong commented on YARN-6689:
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+1 LGTM. Checking this in
> PlacementRule should be configurable
> ------------------------------------
>
> Key: YARN-6689
> URL: https://issues.apache.org/jira/browse/YARN-6689
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Jonathan Hung
> Assignee: Jonathan Hung
> Attachments: YARN-6689.001.patch, YARN-6689.002.patch,
> YARN-6689.003.patch, YARN-6689.004.patch
>
>
> YARN-3635 introduces PlacementRules for placing applications in queues. It is
> currently hardcoded to one rule, {{UserGroupMappingPlacementRule}}. This
> should be configurable as mentioned in the comments:{noformat} private void
> updatePlacementRules() throws IOException {
> List<PlacementRule> placementRules = new ArrayList<>();
> // Initialize UserGroupMappingPlacementRule
> // TODO, need make this defineable by configuration.
> UserGroupMappingPlacementRule ugRule = getUserGroupMappingPlacementRule();
> if (null != ugRule) {
> placementRules.add(ugRule);
> }
> rmContext.getQueuePlacementManager().updateRules(placementRules);
> }{noformat}
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