YARN-656. In scheduler UI, including reserved memory in Memory Total can make it exceed cluster capacity. (Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1512475 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -797,6 +797,9 @@ Release 2.1.0-beta - 2013-08-06
     YARN-945. Removed setting of AMRMToken's service from ResourceManager
     and changed client libraries do it all the time and correctly. (vinodkv)
 
+    YARN-656. In scheduler UI, including reserved memory in Memory Total can 
+    make it exceed cluster capacity. (Sandy Ryza)
+
   BREAKDOWN OF HADOOP-8562/YARN-191 SUBTASKS AND RELATED JIRAS
 
     YARN-158. Yarn creating package-info.java must not depend on sh.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java

@@ -711,6 +711,14 @@ public class YarnConfiguration extends Configuration {
    */
   public static boolean DEFAULT_YARN_MINICLUSTER_FIXED_PORTS = false;
 
+  /**
+   * Whether users are explicitly trying to control resource monitoring
+   * configuration for the MiniYARNCluster. Disabled by default.
+   */
+  public static final String YARN_MINICLUSTER_CONTROL_RESOURCE_MONITORING =
+      YARN_PREFIX + "minicluster.control-resource-monitoring";
+  public static final boolean
+      DEFAULT_YARN_MINICLUSTER_CONTROL_RESOURCE_MONITORING = false;
 
   /** The log directory for the containers */
   public static final String YARN_APP_CONTAINER_LOG_DIR =

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/ClusterMetricsInfo.java

@@ -77,7 +77,7 @@ public class ClusterMetricsInfo {
     this.containersPending = metrics.getPendingContainers();
     this.containersReserved = metrics.getReservedContainers();
     
-    this.totalMB = availableMB + reservedMB + allocatedMB;
+    this.totalMB = availableMB + allocatedMB;
     this.activeNodes = clusterMetrics.getNumActiveNMs();
     this.lostNodes = clusterMetrics.getNumLostNMs();
     this.unhealthyNodes = clusterMetrics.getUnhealthyNMs();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/TestRMWebServices.java

@@ -408,8 +408,7 @@ public class TestRMWebServices extends JerseyTest {
     ClusterMetrics clusterMetrics = ClusterMetrics.getMetrics();
 
     long totalMBExpect = 
-        metrics.getReservedMB()+ metrics.getAvailableMB() 
-        + metrics.getAllocatedMB();
+        metrics.getAvailableMB() + metrics.getAllocatedMB();
 
     assertEquals("appsSubmitted doesn't match", 
         metrics.getAppsSubmitted(), submittedApps);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java

@@ -304,6 +304,16 @@ public class MiniYARNCluster extends CompositeService {
                         MiniYARNCluster.getHostname() + ":0");
         getConfig().set(YarnConfiguration.NM_WEBAPP_ADDRESS,
                         MiniYARNCluster.getHostname() + ":0");
+
+        // Disable resource checks by default
+        if (!getConfig().getBoolean(
+            YarnConfiguration.YARN_MINICLUSTER_CONTROL_RESOURCE_MONITORING,
+            YarnConfiguration.
+                DEFAULT_YARN_MINICLUSTER_CONTROL_RESOURCE_MONITORING)) {
+          getConfig().setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, false);
+          getConfig().setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, false);
+        }
+
         LOG.info("Starting NM: " + index);
         nodeManagers[index].init(getConfig());
         new Thread() {