YARN-302. Fair scheduler assignmultiple should default to false. (sandyr via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1434997 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -184,6 +184,8 @@ Release 2.0.3-alpha - Unreleased
     YARN-135. Client tokens should be per app-attempt, and should be
     unregistered on App-finish. (vinodkv via sseth)
 
+    YARN-302. Fair scheduler assignmultiple should default to false. (sandyr via tucu)
+
 Release 2.0.2-alpha - 2012-09-07 
 
     YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. (vinodkv via acmurthy)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairSchedulerConfiguration.java

@@ -56,7 +56,7 @@ public class FairSchedulerConfiguration extends Configuration {
 
   /** Whether to assign multiple containers in one check-in. */
   protected static final String  ASSIGN_MULTIPLE = CONF_PREFIX + "assignmultiple";
-  protected static final boolean DEFAULT_ASSIGN_MULTIPLE = true;
+  protected static final boolean DEFAULT_ASSIGN_MULTIPLE = false;
 
   /** Whether to give more weight to apps requiring many resources. */
   protected static final String  SIZE_BASED_WEIGHT = CONF_PREFIX + "sizebasedweight";