Author: sandy
Date: Mon Jul 21 05:00:27 2014
New Revision: 1612187

URL: http://svn.apache.org/r1612187
Log:
YARN-2323. FairShareComparator creates too many Resource objects (Hong Zhiguo 
via Sandy Ryza)

Modified:
    hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
    
hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FairSharePolicy.java

Modified: hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
URL: 
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt?rev=1612187&r1=1612186&r2=1612187&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt Mon Jul 21 05:00:27 2014
@@ -51,6 +51,9 @@ Release 2.6.0 - UNRELEASED
 
     YARN-2208. AMRMTokenManager need to have a way to roll over AMRMToken. 
(xgong)
 
+    YARN-2323. FairShareComparator creates too many Resource objects (Hong 
Zhiguo
+    via Sandy Ryza)
+
   OPTIMIZATIONS
 
   BUG FIXES

Modified: 
hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FairSharePolicy.java
URL: 
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FairSharePolicy.java?rev=1612187&r1=1612186&r2=1612187&view=diff
==============================================================================
--- 
hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FairSharePolicy.java
 (original)
+++ 
hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/policies/FairSharePolicy.java
 Mon Jul 21 05:00:27 2014
@@ -65,6 +65,7 @@ public class FairSharePolicy extends Sch
   private static class FairShareComparator implements Comparator<Schedulable>,
       Serializable {
     private static final long serialVersionUID = 5564969375856699313L;
+    private static final Resource ONE = Resources.createResource(1);
 
     @Override
     public int compare(Schedulable s1, Schedulable s2) {
@@ -78,11 +79,10 @@ public class FairSharePolicy extends Sch
           s1.getResourceUsage(), minShare1);
       boolean s2Needy = Resources.lessThan(RESOURCE_CALCULATOR, null,
           s2.getResourceUsage(), minShare2);
-      Resource one = Resources.createResource(1);
       minShareRatio1 = (double) s1.getResourceUsage().getMemory()
-          / Resources.max(RESOURCE_CALCULATOR, null, minShare1, 
one).getMemory();
+          / Resources.max(RESOURCE_CALCULATOR, null, minShare1, 
ONE).getMemory();
       minShareRatio2 = (double) s2.getResourceUsage().getMemory()
-          / Resources.max(RESOURCE_CALCULATOR, null, minShare2, 
one).getMemory();
+          / Resources.max(RESOURCE_CALCULATOR, null, minShare2, 
ONE).getMemory();
       useToWeightRatio1 = s1.getResourceUsage().getMemory() /
           s1.getWeights().getWeight(ResourceType.MEMORY);
       useToWeightRatio2 = s2.getResourceUsage().getMemory() /


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