[YARN-5753] fix NPE in AMRMClientImpl.getMatchingRequests()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.9.0, 3.0.0-alpha2
• Component/s: yarn
• Target Version/s: 3.0.0-alpha2
• Hadoop Flags: Reviewed
• Assignee: Haibo Chen
• Reporter: Haibo Chen
• Created: 19/Oct/16 18:26
• Updated: 13/Sep/17 08:00
• Resolved: 26/Oct/16 07:00

Description

 RemoteRequestsTable remoteRequestsTable = getTable(0);
 List<ResourceRequestInfo<T>> matchingRequests =
        remoteRequestsTable.getMatchingRequests(priority, resourceName, executionType, capability);

remoteRequestsTable can be null, causing NPE.

Issue Links

• is broken by: YARN-4889 Changes in AMRMClient for identifying resource-requests explicitly
• is duplicated by: YARN-5721 NPE at AMRMClientImpl.getMatchingRequests
• is duplicated by: YARN-7058 Add null check in AMRMClientImpl#getMatchingRequest