MAPREDUCE-3452. fifoscheduler web ui page always shows 0% used for the queue. (Jonathan Eagles via mahadev) - Merging r1208999 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1209002 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -163,6 +163,9 @@ Release 0.23.1 - Unreleased
     MAPREDUCE-3463. Second AM fails to recover properly when first AM is killed with
     java.lang.IllegalArgumentException causing lost job. (Siddharth Seth via mahadev)
 
+    MAPREDUCE-3452. fifoscheduler web ui page always shows 0% used for the queue.
+    (Jonathan Eagles via mahadev)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoScheduler.java

@@ -145,8 +145,9 @@ public class FifoScheduler implements ResourceScheduler {
         boolean includeChildQueues, boolean recursive) {
       QueueInfo queueInfo = recordFactory.newRecordInstance(QueueInfo.class);
       queueInfo.setQueueName(DEFAULT_QUEUE.getQueueName());
-      queueInfo.setCapacity(100.0f);
-      queueInfo.setMaximumCapacity(100.0f);
+      queueInfo.setCapacity(1.0f);
+      queueInfo.setCurrentCapacity((float)usedResource.getMemory() / clusterResource.getMemory());
+      queueInfo.setMaximumCapacity(1.0f);
       queueInfo.setChildQueues(new ArrayList<QueueInfo>());
       queueInfo.setQueueState(QueueState.RUNNING);
       return queueInfo;

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/DefaultSchedulerPage.java

@@ -123,8 +123,8 @@ class DefaultSchedulerPage extends RmView {
               span().$style(Q_END)._("100% ")._().
               span(".q", "default")._()._();
       } else {
-        float used = qInfo.getCurrentCapacity() / 100.0f;
-        float set = qInfo.getCapacity() / 100.0f;
+        float used = qInfo.getCurrentCapacity();
+        float set = qInfo.getCapacity();
         float delta = Math.abs(set - used) + 0.001f;
         ul.
           li().