YARN-1775. Enhanced ProcfsBasedProcessTree to optionally add the ability to use smaps for obtaining used memory information. Contributed by Rajesh Balamohan.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1580087 13f79535-47bb-0310-9956-ffa450edef68

Author: vinoduec

hadoop-yarn-project/CHANGES.txt

@@ -178,6 +178,10 @@ Release 2.4.0 - UNRELEASED
     YARN-1690. Made DistributedShell send timeline entities+events. (Mayank Bansal
     via zjshen)
 
+    YARN-1775. Enhanced ProcfsBasedProcessTree to optionally add the ability to
+    use smaps for obtaining used memory information. (Rajesh Balamohan via
+    vinodkv)
+
   IMPROVEMENTS
 
     YARN-1007. Enhance History Reader interface for Containers. (Mayank Bansal via

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

@@ -718,6 +718,10 @@ public class YarnConfiguration extends Configuration {
   /** Class that calculates process tree resource utilization.*/
   public static final String NM_CONTAINER_MON_PROCESS_TREE =
     NM_PREFIX + "container-monitor.process-tree.class";
+  public static final String PROCFS_USE_SMAPS_BASED_RSS_ENABLED = NM_PREFIX +
+      ".container-monitor.procfs-tree.smaps-based-rss.enabled";
+  public static final boolean DEFAULT_PROCFS_USE_SMAPS_BASED_RSS_ENABLED =
+      false;
 
   /** Prefix for all node manager disk health checker configs. */
   private static final String NM_DISK_HEALTH_CHECK_PREFIX =