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YARN-1382. Remove unusableRMNodesConcurrentSet (never used) in NodeListManager to get rid of memory leak. Contributed by Rohith Sharma K S. 

(cherry picked from commit 223ce323bb)
(cherry picked from commit 401d1e6e8a)
This commit is contained in:
Junping Du 2015-12-30 07:52:07 -08:00
parent 9b11e7bd6d
commit a5eb8bb8f5
2 changed files with 4 additions and 21 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -1107,6 +1107,9 @@ Release 2.8.0 - UNRELEASED
YARN-4400. AsyncDispatcher.waitForDrained should be final. (Daniel Templeton
via junping_du)
YARN-1382. Remove unusableRMNodesConcurrentSet (never used) in NodeListManager
to get rid of memory leak. (Rohith Sharma K S via junping_du)
Release 2.7.3 - UNRELEASED
INCOMPATIBLE CHANGES

22
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/NodesListManager.java
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@ -19,8 +19,6 @@
package org.apache.hadoop.yarn.server.resourcemanager;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map.Entry;
import java.util.Set;
@ -62,9 +60,6 @@ public class NodesListManager extends CompositeService implements
private HostsFileReader hostsReader;
private Configuration conf;
private Set<RMNode> unusableRMNodesConcurrentSet = Collections
.newSetFromMap(new ConcurrentHashMap<RMNode,Boolean>());
private final RMContext rmContext;
private String includesFile;
@ -290,24 +285,12 @@ public class NodesListManager extends CompositeService implements
}
}
/**
* Provides the currently unusable nodes. Copies it into provided collection.
* @param unUsableNodes
* Collection to which the unusable nodes are added
* @return number of unusable nodes added
*/
public int getUnusableNodes(Collection<RMNode> unUsableNodes) {
unUsableNodes.addAll(unusableRMNodesConcurrentSet);
return unusableRMNodesConcurrentSet.size();
}
@Override
public void handle(NodesListManagerEvent event) {
RMNode eventNode = event.getNode();
switch (event.getType()) {
case NODE_UNUSABLE:
LOG.debug(eventNode + " reported unusable");
unusableRMNodesConcurrentSet.add(eventNode);
for(RMApp app: rmContext.getRMApps().values()) {
if (!app.isAppFinalStateStored()) {
this.rmContext
@ -320,10 +303,7 @@ public class NodesListManager extends CompositeService implements
}
break;
case NODE_USABLE:
if (unusableRMNodesConcurrentSet.contains(eventNode)) {
LOG.debug(eventNode + " reported usable");
unusableRMNodesConcurrentSet.remove(eventNode);
}
LOG.debug(eventNode + " reported usable");
for (RMApp app : rmContext.getRMApps().values()) {
if (!app.isAppFinalStateStored()) {
this.rmContext