配置如下：
#set java environment
export JAVA_HOME=/usr/lib/jvm/jdk1.
7.0_76
export JRE_HOME=
${JAVA_HOME}/jre
export CLASSPATH=.:
${JAVA_HOME}/lib:
${JRE_HOME}/lib
export PATH=
${JAVA_HOME}/bin:/home/hadoop/hadoop-
2.7.
1/bin:/home/hadoop/hadoop-
2.7.
1/sbin:/home/hadoop/hbase-
1.2.
4/bin:
$PATH
(3)配置三台主机的Hadoop文件，内容如下。
conf/Hadoop-env.sh:
/home/master/hadoop-2.7.1/etc/hadoop
首先如何找到这个文件呢，使用Ubuntu的搜索工具如图所示：
配置如下：
# The java implementation to use.
export JAVA_HOME=/usr/lib/jvm/jdk1.
7.0_76
export HADOOP_HOME=/home/master/hadoop-
2.7.
1
export PATH=
$PATH:/home/master/hadoop-
2.7.
1/bin
conf/core-site.xml
/home/master/hadoop-2.7.1/etc/hadoop
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://www.linuxidc.com/configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.default.name
</name>
<value>hdfs://master:9000
</value>
</property>
<property>
<name>hadoop.tmp.dir
</name>
<value>/tmp
</value>
</property>
</configuration>
conf/hdfs-site.xml
/home/master/hadoop-2.7.1/etc/hadoop
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://www.linuxidc.com/configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>dfs.replication
</name>
<value>2
</value>
</property>
</configuration>
conf/mapred-site.xml
/home/master/hadoop-2.7.1/etc/hadoop
搜索发现没有这个文件需要复制mapred-site.xml.template这个文件的内容到mapred-site.xml
cp mapred-site
.xml.template mapred-site
.xml
配置如下：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="https://www.linuxidc.com/configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>mapred.job.tracker
</name>
<value>master:9001
</value>
</property>
</configuration>
conf/masters
/home/master/hadoop-2.7.1/etc/hadoop
没有手动添加一个master文件
配置如下：
master
conf/slaves:
slave1
slave2
