YARN-3554. Default value for maximum nodemanager connect wait time is too high. Contributed by Naganarasimha G R

hadoop-yarn-project/CHANGES.txt

@@ -407,6 +407,9 @@ Release 2.7.1 - UNRELEASED
     YARN-3358. Audit log not present while refreshing Service ACLs. 
     (Varun Saxena via devaraj)
 
+    YARN-3554. Default value for maximum nodemanager connect wait time is too
+    high (Naganarasimha G R via jlowe)
+
 Release 2.7.0 - 2015-04-20
 
   INCOMPATIBLE CHANGES

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

@@ -1809,7 +1809,7 @@ public class YarnConfiguration extends Configuration {
   public static final String CLIENT_NM_CONNECT_MAX_WAIT_MS =
       YARN_PREFIX + "client.nodemanager-connect.max-wait-ms";
   public static final long DEFAULT_CLIENT_NM_CONNECT_MAX_WAIT_MS =
-      15 * 60 * 1000;
+      3 * 60 * 1000;
 
   /** Time interval between each attempt to connect to NM */
   public static final String CLIENT_NM_CONNECT_RETRY_INTERVAL_MS =

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml

@@ -1138,7 +1138,7 @@
   <property>
     <description>Max time to wait to establish a connection to NM</description>
     <name>yarn.client.nodemanager-connect.max-wait-ms</name>
-    <value>900000</value>
+    <value>180000</value>
   </property>
 
   <property>