[YARN-6501] FSSchedulerNode.java fails to compile with JDK7

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.0
• Fix Version/s: 2.9.0
• Component/s: resourcemanager
• Target Version/s: 2.9.0
• Hadoop Flags: Reviewed
• Assignee: John Zhuge
• Reporter: John Zhuge
• Created: 20/Apr/17 01:35
• Updated: 20/Apr/17 17:32
• Resolved: 20/Apr/17 14:54

Description

[ERROR] /Users/jzhuge/hadoop-commit/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSSchedulerNode.java:[183,18] cannot find symbol
[ERROR] symbol:   method putIfAbsent(org.apache.hadoop.yarn.api.records.ApplicationAttemptId,org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt)
[ERROR] location: variable appIdToAppMap of type java.util.Map<org.apache.hadoop.yarn.api.records.ApplicationAttemptId,org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt>
[ERROR] /Users/jzhuge/hadoop-commit/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSSchedulerNode.java:[184,29] cannot find symbol
[ERROR] symbol:   method putIfAbsent(org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt,org.apache.hadoop.yarn.api.records.Resource)
[ERROR] location: variable resourcesPreemptedForApp of type java.util.Map<org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt,org.apache.hadoop.yarn.api.records.Resource>

Map#putIfAbsent is introduced in JDK8.

Issue Links

• duplicates: YARN-6502 branch-2 build is broken
• is broken by: YARN-6432 FairScheduler: Reserve preempted resources for corresponding applications
• is duplicated by: YARN-6502 branch-2 build is broken