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YARN-8183. Fix ConcurrentModificationException inside RMAppAttemptMetrics#convertAtomicLongMaptoLongMap. (Suma Shivaprasad via wangda) 

Change-Id: I347871d672001653a3afe2e99adefd74e0d798cd
This commit is contained in:
Wangda Tan 2018-04-24 17:42:17 -07:00 committed by Owen O'Malley
parent 3b1dad9123
commit ebedd69e25
1 changed files with 5 additions and 4 deletions
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9
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptMetrics.java
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@ -20,6 +20,7 @@ package org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
@ -53,8 +54,8 @@ public class RMAppAttemptMetrics {
private ReadLock readLock;
private WriteLock writeLock;
private Map<String, AtomicLong> resourceUsageMap = new HashMap<>();
private Map<String, AtomicLong> preemptedResourceMap = new HashMap<>();
private Map<String, AtomicLong> resourceUsageMap = new ConcurrentHashMap<>();
private Map<String, AtomicLong> preemptedResourceMap = new ConcurrentHashMap<>();
private RMContext rmContext;
private int[][] localityStatistics =
@ -97,7 +98,7 @@ public class RMAppAttemptMetrics {
public Resource getResourcePreempted() {
try {
readLock.lock();
return resourcePreempted;
return Resource.newInstance(resourcePreempted);
} finally {
readLock.unlock();
}
@ -230,7 +231,7 @@ public class RMAppAttemptMetrics {
}
public Resource getApplicationAttemptHeadroom() {
return applicationHeadroom;
return Resource.newInstance(applicationHeadroom);
}
public void setApplicationAttemptHeadRoom(Resource headRoom) {