edit

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

@@ -46,8 +46,8 @@ for f in $HADOOP_HOME/contrib/capacity-scheduler/*.jar; do
 done
 
 # The maximum amount of heap to use, in MB. Default is 1000.
-#export HADOOP_HEAPSIZE=
-#export HADOOP_NAMENODE_INIT_HEAPSIZE=""
+export HADOOP_HEAPSIZE=512
+export HADOOP_NAMENODE_INIT_HEAPSIZE="512"
 
 # Extra Java runtime options.  Empty by default.
 export HADOOP_OPTS="$HADOOP_OPTS -Djava.net.preferIPv4Stack=true"

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

@@ -32,7 +32,7 @@ if [ "$JAVA_HOME" = "" ]; then
 fi
 
 JAVA=$JAVA_HOME/bin/java
-JAVA_HEAP_MAX=-Xmx500m 
+JAVA_HEAP_MAX=-Xmx512m 
 
 # For setting YARN specific HEAP sizes please use this
 # Parameter and set appropriately

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

@@ -12,7 +12,7 @@
     </property>
     <property>
         <name>yarn.scheduler.minimum-allocation-mb</name>
-        <value>640</value>
+        <value>512</value>
         <discription>单个任务可申请最少内存，默认1024MB</discription>
     </property>
     <property>