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https://issues.apache.org/jira/browse/YARN-6197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15870013#comment-15870013
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Bibin A Chundatt commented on YARN-6197:
----------------------------------------
[~sunilg]/[~varun_saxena]
For activating and checking {{amIfStarted}} should be consider
{{rmContext.getScheduler().getMinimumResourceCapability}}.
As per the current code
{code}
public FiCaSchedulerApp(ApplicationAttemptId applicationAttemptId,
String user, Queue queue, AbstractUsersManager abstractUsersManager,
RMContext rmContext, Priority appPriority, boolean isAttemptRecovering,
ActivitiesManager activitiesManager) {
if (rmApp == null || rmApp.getAMResourceRequest() == null) {
// the rmApp may be undefined (the resource manager checks for this too)
// and unmanaged applications do not provide an amResource request
// in these cases, provide a default using the scheduler
amResource = rmContext.getScheduler().getMinimumResourceCapability();
partition = CommonNodeLabelsManager.NO_LABEL;
} else {
amResource = rmApp.getAMResourceRequest().getCapability();
partition =
(rmApp.getAMResourceRequest().getNodeLabelExpression() == null)
? CommonNodeLabelsManager.NO_LABEL
: rmApp.getAMResourceRequest().getNodeLabelExpression();
}
{code}
Any info on why the minimum was considered instead of {{Resource.NONE}} ?? We
could have activated AM directly with out AM Limit check but following ordering
policy.
> CS Leaf queue am usage gets updated for unmanaged AM
> ----------------------------------------------------
>
> Key: YARN-6197
> URL: https://issues.apache.org/jira/browse/YARN-6197
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
>
> {{LeafQueue#activateApplication()}} for unmanaged AM the am_usage is updated
> with scheduler minimum allocation size. Cluster resource/AM limit headroom
> for other apps in queue will get reduced .
> Solution: FicaScheduler unManagedAM flag can be used to check AM type.
> Based on flag the queueusage need to be updated during activation and removal
> Thoughts??
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