gnの設定を整理

conf/cdh3.hadoop.gn/core-site.xml

@@ -4,21 +4,29 @@
 <!-- Put site-specific property overrides in this file. -->
 
 <configuration>
+	<property>
+		<name>local.namenode</name>
+		<value>mapr01</value>
+	</property>
+	<property>
+		<name>local.secondnamenode</name>
+		<value>mapr01</value>
+	</property>
+	<property>
+		<name>local.jobtracker</name>
+		<value>mapr01</value>
+	</property>
 
-  <property>
-    <name>fs.default.name</name>
-    <value>hdfs://mapr01:8020/</value>
-  </property>
-
-
-  <property>
-    <name>fs.checkpoint.dir</name>
-    <value>/hadoop/hdfs/namesecondary</value>
-  </property>
-
-  <property>
-    <name>io.file.buffer.size</name>
-    <value>65536</value>
-  </property>
-
+	<property>
+		<name>fs.default.name</name>
+		<value>hdfs://${local.namenode}:8020</value>
+	</property>
+	<property>
+		<name>fs.checkpoint.dir</name>
+		<value>/hadoop/hdfs/namesecondary</value>
+	</property>
+	<property>
+		<name>io.file.buffer.size</name>
+		<value>65536</value>
+	</property>
 </configuration>

conf/cdh3.hadoop.gn/hadoop-env.sh

@@ -12,7 +12,7 @@
 # export HADOOP_CLASSPATH="<extra_entries>:$HADOOP_CLASSPATH"
 
 # The maximum amount of heap to use, in MB. Default is 1000.
-# export HADOOP_HEAPSIZE=2000
+export HADOOP_HEAPSIZE=2048
 
 # Extra Java runtime options.  Empty by default.
 # if [ "$HADOOP_OPTS" == "" ]; then export HADOOP_OPTS=-server; else HADOOP_OPTS+=" -server"; fi

conf/cdh3.hadoop.gn/hdfs-site.xml

@@ -21,6 +21,10 @@
 		<name>dfs.replication</name>
 		<value>1</value>
 	</property>
+	<property>
+		<name>dfs.block.size</name>
+		<value>134217728</value>
+	</property>
 
 	<property>
 		<name>dfs.umaskmode</name>