Changes between Version 7 and Version 8 of jazz/Hadoop_Lab1

Timestamp:

Mar 20, 2009, 1:49:52 PM (15 years ago)

Author:

jazz

Comment:

--

jazz/Hadoop_Lab1

@@ -19 +19 @@
 /opt$ sudo mv hadoop-0.18.3/ hadoop
 }}}
+ * 進入 hadoop 目錄，做進一步的設定。我們需要修改兩個檔案，第一個是 '''hadoop-env.sh'''，需要設定 JAVA_HOME, HADOOP_HOME, HADOOP_CONF_DIR 三個環境變數。
+{{{
+/opt$ cd hadoop/
+/opt/hadoop$ sudo su
+/opt/hadoop# cat >> conf/hadoop-env.sh << EOF
+export JAVA_HOME=/usr/lib/jvm/java-6-sun
+export HADOOP_HOME=/opt/hadoop
+export HADOOP_CONF_DIR=/opt/hadoop/conf
+EOF
+}}}
+ * 第二個設定檔是 '''hadoop-site.xml'''，由於官方所提供的範例並無法直接執行，因此我們參考線上文件，做了以下的修改。
+{{{
+/opt/hadoop# cat > conf/hadoop-site.sh << EOF
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+<configuration>
+  <property>
+    <name>fs.default.name</name>
+    <value>hdfs://localhost:9000/</value>
+    <description>
+      The name of the default file system. Either the literal string
+      "local" or a host:port for NDFS.
+    </description>
+  </property>
+  <property>
+    <name>mapred.job.tracker</name>
+    <value>localhost:9001</value>
+    <description>
+    The host and port that the MapReduce job tracker runs at. If
+    "local", then jobs are run in-process as a single map and
+    reduce task.
+    </description>
+  </property>
+</configuration>
+EOF
+}}}
 
 === deb 套件安裝法 ===