[jira] [Updated] (YARN-9824) Fall back to configured queue ordering policy class name

["Jonathan Hung (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-9824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Hung updated YARN-9824:
--------------------------------
    Attachment: YARN-9824.001.patch

> Fall back to configured queue ordering policy class name
> --------------------------------------------------------
>
>                 Key: YARN-9824
>                 URL: https://issues.apache.org/jira/browse/YARN-9824
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Jonathan Hung
>            Assignee: Jonathan Hung
>            Priority: Major
>              Labels: release-blocker
>         Attachments: YARN-9824.001.patch
>
>
> Currently this is how configured queue ordering policy is determined:
> {noformat}
> if (policyType.trim().equals(QUEUE_UTILIZATION_ORDERING_POLICY)) {
>   // Doesn't respect priority
>   qop = new PriorityUtilizationQueueOrderingPolicy(false);
> } else if (policyType.trim().equals(
>     QUEUE_PRIORITY_UTILIZATION_ORDERING_POLICY)) {
>   qop = new PriorityUtilizationQueueOrderingPolicy(true);
> } else {
>   String message =
>       "Unable to construct queue ordering policy=" + policyType + " queue="
>           + queue;
>   throw new YarnRuntimeException(message);
> } {noformat}
> If we want to enable a policy which is not QUEUE_UTILIZATION_ORDERING_POLICY or QUEUE_PRIORITY_UTILIZATION_ORDERING_POLICY, it requires code change here to add a keyword for this policy.
> It'd be easier if the admin could configure a class name here instead of requiring a keyword.



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