[YARN-9490] applicationresourceusagereport return wrong number of reserved containers

• Type: Bug
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.3.0
• Component/s: resourcemanager
• Target Version/s: 3.5.0
• Assignee: yanbing zhang
• Reporter: yanbing zhang
• Created: 16/Apr/19 12:21
• Updated: 04/Jan/24 08:37

Description

when getting an ApplicationResourceUsageReport instance from the class of SchedulerApplicationAttempt, I found the input constructor parameter(reservedContainers.size()) is wrong.  because the type of this variable is Map<SchedulerRequestKey, Map<NodeId, RMContainer>>, so "reservedContainer.size()" is not the number of containers, but the number of SchedulerRequestKey.