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https://issues.apache.org/jira/browse/YUNIKORN-2284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Manikandan R resolved YUNIKORN-2284.
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Fix Version/s: 1.5.0
Target Version: 1.5.0
Resolution: Fixed
> ERROR message when stopping Service context
> -------------------------------------------
>
> Key: YUNIKORN-2284
> URL: https://issues.apache.org/jira/browse/YUNIKORN-2284
> Project: Apache YuniKorn
> Issue Type: Sub-task
> Components: core - scheduler
> Reporter: Peter Bacsko
> Assignee: PoAn Yang
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.5.0
>
>
> After YUNIKORN-2233, the scheduler core can be stopped. This causes an issue
> inside the MockScheduler:
> {noformat}
> 2023-12-21T17:58:49.203+0100 INFO core.scheduler.ugm
> ugm/manager.go:136 Removing user from manager {"user": "testuser"}
> ...
> 2023-12-21T17:58:59.209+0100 INFO core.entrypoint
> entrypoint/service_context.go:40 ServiceContext stop all services
> ...
> 2023-12-21T17:58:59.211+0100 INFO core.scheduler.partition
> scheduler/partition_manager.go:144 marking all queues for removal
> {"partitionName": "[rm:123]default"}
> 2023-12-21T17:58:59.211+0100 INFO core.scheduler.queue
> objects/queue.go:952 marking managed queue for deletion {"queue":
> "root"}
> 2023-12-21T17:58:59.212+0100 INFO core.scheduler.fsm
> objects/object_state.go:81 object transition {"object": "root",
> "source": "Active", "destination": "Draining", "event": "Remove"}
> 2023-12-21T17:58:59.212+0100 INFO core.scheduler.queue
> objects/queue.go:952 marking managed queue for deletion {"queue":
> "root.singleleaf"}
> 2023-12-21T17:58:59.212+0100 INFO core.scheduler.fsm
> objects/object_state.go:81 object transition {"object":
> "root.singleleaf", "source": "Active", "destination": "Draining", "event":
> "Remove"}
> 2023-12-21T17:58:59.212+0100 INFO core.scheduler.partition
> scheduler/partition_manager.go:150 removing all applications from
> partition {"numOfApps": 1, "partitionName": "[rm:123]default"}
> 2023-12-21T17:58:59.212+0100 INFO core.scheduler.application
> objects/application.go:608 ask removed successfully from application
> {"appID": "app-1", "ask": "", "pendingDelta": "map[memory:0 vcore:0]"}
> 2023-12-21T17:58:59.212+0100 INFO core.scheduler.queue
> objects/queue.go:837 Application completed and removed from queue
> {"queueName": "root.singleleaf", "applicationID": "app-1"}
> 2023-12-21T17:59:32.848+0100 ERROR core.scheduler.ugm
> ugm/manager.go:118 user tracker must be available in userTrackers map
> {"user": "testuser"}
> github.com/apache/yunikorn-core/pkg/scheduler/ugm.(*Manager).DecreaseTrackedResource
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/ugm/manager.go:118
> github.com/apache/yunikorn-core/pkg/scheduler/objects.(*Application).decUserResourceUsage
>
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/objects/application.go:1654
> github.com/apache/yunikorn-core/pkg/scheduler/objects.(*Application).RemoveAllAllocations
>
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/objects/application.go:1843
> github.com/apache/yunikorn-core/pkg/scheduler.(*PartitionContext).removeApplication
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/partition.go:388
> github.com/apache/yunikorn-core/pkg/scheduler.(*partitionManager).remove
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/partition_manager.go:156
> github.com/apache/yunikorn-core/pkg/scheduler.(*partitionManager).Stop
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/partition_manager.go:97
> github.com/apache/yunikorn-core/pkg/scheduler.(*ClusterContext).Stop
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/context.go:991
> github.com/apache/yunikorn-core/pkg/scheduler.(*Scheduler).Stop
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/scheduler.go:217
> github.com/apache/yunikorn-core/pkg/entrypoint.(*ServiceContext).StopAll
> /home/bacskop/repos/yunikorn-core/pkg/entrypoint/service_context.go:50
> github.com/apache/yunikorn-core/pkg/scheduler/tests.(*mockScheduler).Stop
>
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/tests/mockscheduler_test.go:91
> github.com/apache/yunikorn-core/pkg/scheduler/tests.TestApplicationHistoryTracking
>
> /home/bacskop/repos/yunikorn-core/pkg/scheduler/tests/application_tracking_test.go:172
> {noformat}
> The problem is that the tracker object no longer exist when
> {{PartitionContext.removeApplication()}} is called. At this point the app is
> also in Completed state, so it's not necessary to decrement any resource.
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