edit

container/conf/java/hadoop/yarn-env.sh

@@ -32,7 +32,7 @@ if [ "$JAVA_HOME" = "" ]; then
 fi
 
 JAVA=$JAVA_HOME/bin/java
-JAVA_HEAP_MAX=-Xmx3072m 
+JAVA_HEAP_MAX=-Xmx500m 
 
 # For setting YARN specific HEAP sizes please use this
 # Parameter and set appropriately

container/conf/java/hadoop/yarn-site.xml

@@ -7,7 +7,7 @@
     </property> 
     <property>
         <name>yarn.nodemanager.resource.memory-mb</name>
-        <value>1024</value>
+        <value>512</value>
         <discription>每个节点可用内存,单位MB</discription>
     </property>
     <property>