Hadoop-2.7.1单机版安装

一、修改配置(core-site.xml、hdfs-site.xml、mapred-site.xml、yarn-site.xml)

hadoop-2.7.1/etc/hadoop/core-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>
    <property>
        <name>fs.default.name</name>
        <value>hdfs://127.0.0.1:9000</value>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>file:/tmp</value>
    </property>
    <property>
        <name>io.file.buffer.size</name>
        <value>131702</value>
    </property>
</configuration>

hadoop-2.7.1/etc/hadoop/hdfs-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
    <property>
        <name>dfs.namenode.name.dir</name>
        <value>file:/tmp/dfs/name</value>
    </property>
    <property>
        <name>dfs.datanode.data.dir</name>
        <value>file:/tmp/dfs/data</value>
    </property>
    <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
    <property>
        <name>dfs.namenode.secondary.http-address</name>
        <value>127.0.0.1:9001</value>
    </property>
    <property>
        <name>dfs.webhdfs.enabled</name>
        <value>true</value>
    </property>
</configuration>

hadoop-2.7.1/etc/hadoop/mapred-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
    
    <property>
        <name>mapreduce.framework.name</name>
        <value>yarn</value>
    </property>
    <property>
        <name>mapreduce.jobhistory.address</name>
        <value>127.0.0.1:10020</value>
    </property>
    <property>
        <name>mapreduce.jobhistory.webapp.address</name>
        <value>127.0.0.1:19888</value>
    </property>
</configuration>

hadoop-2.7.1/etc/hadoop/yarn-site.xml

<?xml version="1.0"?>
<configuration>
    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>
    
    <property>
        <name>yarn.resourcemanager.webapp.address</name>
        <value>127.0.0.1:8088</value>
    </property>
    
</configuration>

二、配置本机密码登录
输入命令：ssh-keygen后一致按回车健
输入命令：cp   id_rsa.pub    authorized_keys；复制之前检测是否已存在authorized_keys文件，若存在需要将id_rsa.pub的内容复制到 authorized_keys中
另外可能需要服务器上
~/.ssh权限设置为700
~/.ssh/authorized_keys的权限设置为600

三、启动
先格式化：hadoop-2.7.1/bin/hdfs    namenode   -format
启动：hadoop-2.7.1/sbin/start-dfs.sh
启动：hadoop-2.7.1/sbin/start-yarn.sh

四：验证
在浏览器中输入：
http://127.0.0.1:8088

http://127.0.0.1:50070

PS：在Window上启动时出现了如下错误：
org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
时需要下载源代码重新编译，如下:将610行注释掉，直接返回true

若出现下面的错误需要下载winutils.exe文件放入D:\Tools\hadoop-2.7.1\bin目录下
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.
15/12/04 19:18:12 ERROR util.Shell: Failed to locate the winutils binary in the
hadoop binary path
java.io.IOException: Could not locate executable D:\Tools\hadoop-2.7.1\bin\winutils.exe in the Hadoop binaries.
        at org.apache.hadoop.util.Shell.getQualifiedBinPath(Shell.java:356)
        at org.apache.hadoop.util.Shell.getWinUtilsPath(Shell.java:371)
        at org.apache.hadoop.util.Shell.<clinit>(Shell.java:364)
        at org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:80)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.j
ava:2483)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2508)

hadoop-common-2.2.0-bin-master.zip下载地址：https://codeload.github.com/srccodes/hadoop-common-2.2.0-bin/zip/master

Hadoop-2.7.1单机版安装

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