[YARN-7138] Fix incompatible API change for YarnScheduler involved by YARN-5221

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Won't Fix
• Component/s: scheduler
• Target Version/s: 2.9.0, 3.0.0
• Assignee: Unassigned
• Reporter: Junping Du
• Created: 31/Aug/17 01:06
• Updated: 25/Oct/19 20:27
• Resolved: 09/Oct/17 18:17

Description

From JACC report for 2.8.2 against 2.7.4, it indicates that we have incompatible changes happen in YarnScheduler:

hadoop-yarn-server-resourcemanager-2.7.4.jar, YarnScheduler.class
package org.apache.hadoop.yarn.server.resourcemanager.scheduler
YarnScheduler.allocate ( ApplicationAttemptId p1, List<ResourceRequest> p2, List<ContainerId> p3, List<String> p4, List<String> p5 ) [abstract]  :  Allocation 

The root cause is YARN-5221. We should change it back or workaround this by adding back original API (mark as deprecated if not used any more).

Issue Links

• is related to: YARN-5221 Expose UpdateResourceRequest API to allow AM to request for change in container properties
• is related to: YARN-7301 Create stable Scheduler API
• relates to: YARN-7322 Remove annotations from org.apache.hadoop.yarn.server classes