hadoop-2.6.0-cdh5.14.0 StandAlone环境搭建

1.准备一台服务器

192.168.5.106

2.提前安装jdk

3.hadoop运行服务

NameNode            192.168.5.106

SecondaryNameNode   192.168.5.106

DataNode            192.168.5.106

ResourceManager     192.168.5.106

NodeManager         192.168.5.106

4.下载并解压hadoop

http://archive.apache.org/dist/hadoop/common/hadoop-2.7.5/hadoop-2.7.5.tar.gz

 mkdir -p /export/server/                hadoop解压到此目录下

5.修改配置文件

5.1  vim hadoop-2.7.5/etc/hadoop/core-site.xml

<configuration>

<property>
<name>fs.default.name</name>
<value>hdfs://192.168.5.106:8020</value>
</property>

<property>
<name>hadoop.tmp.dir</name>
<value>/export/servers/hadoop-2.7.5/hadoopDatas/tempDatas</value>
</property>

<!--  缓冲区大小，实际工作中根据服务器性能动态调整 -->
<property>
<name>io.file.buffer.size</name>
<value>4096</value>
</property>

<!--  开启hdfs的垃圾桶机制，删除掉的数据可以从垃圾桶中回收，单位分钟 -->
<property>
<name>fs.trash.interval</name>
<value>10080</value>
</property>

</configuration>

5.2  vim hadoop-2.7.5/etc/hadoop/hdfs-site.xml

<configuration>

<!-- NameNode存储元数据信息的路径，实际工作中，一般先确定磁盘的挂载目录，然后多个目录用，进行分割   -->
<!--   集群动态上下线
<property>
<name>dfs.hosts</name>
<value>/export/servers/hadoop-2.7.5/etc/hadoop/accept_host</value>
</property>
 
<property>
<name>dfs.hosts.exclude</name>
<value>/export/servers/hadoop-2.7.5/etc/hadoop/deny_host</value>
</property>
 -->

 <property>
<name>dfs.namenode.secondary.http-address</name>
<value>192.168.5.106:50090</value>
</property>

<property>
<name>dfs.namenode.http-address</name>
<value>192.168.5.106:50070</value>
</property>

<property>
<name>dfs.namenode.name.dir</name>
<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas,file:///export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas2</value>
</property>

<!--  定义dataNode数据存储的节点位置，实际工作中，一般先确定磁盘的挂载目录，然后多个目录用，进行分割  -->
<property>
<name>dfs.datanode.data.dir</name>
<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas,file:///export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas2</value>
</property>

<property>
<name>dfs.namenode.edits.dir</name>
<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/nn/edits</value>
</property>

<property>
<name>dfs.namenode.checkpoint.dir</name>
<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/snn/name</value>
</property>

<property>
<name>dfs.namenode.checkpoint.edits.dir</name>
<value>file:///export/servers/hadoop-2.7.5/hadoopDatas/dfs/snn/edits</value>
</property>

<property>
<name>dfs.replication</name>
<value>3</value>
</property>

<property>
<name>dfs.permissions</name>
<value>false</value>
</property>

<property>
<name>dfs.blocksize</name>
<value>134217728</value>
</property>

</configuration>

5.3 vim hadoop-2.7.5/etc/hadoop/hadoop-env.sh

export JAVA_HOME=jdk路径

5.4 vim hadoop-2.7.5/etc/hadoop/mapred-site.xml

<configuration>

<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>

<property>
<name>mapreduce.job.ubertask.enable</name>
<value>true</value>
</property>

<property>
<name>mapreduce.jobhistory.address</name>
<value>192.168.5.106:10020</value>
</property>

<property>
<name>mapreduce.jobhistory.webapp.address</name>
<value>192.168.5.106:19888</value>
</property>

</configuration>

5.5 vim hadoop-2.7.5/etc/hadoop/yarn-site.xml

<configuration>

<property>
<name>yarn.resourcemanager.hostname</name>
<value>192.168.5.106</value>
</property>

<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>

<property>
<name>yarn.log-aggregation-enable</name>
<value>true</value>
</property>

<property>
<name>yarn.log-aggregation.retain-seconds</name>
<value>604800</value>
</property>

</configuration>

5.6  vim hadoop-2.7.5/etc/hadoop/mapred-env.sh

export JAVA_HOME=jdk路径

5.7 vim hadoop-2.7.5/etc/hadoop/slaves

192.168.5.106

 

6.启动服务

创建数据存放文件夹:

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/tempDatas

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/namenodeDatas2

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/datanodeDatas2

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/nn/edits

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/snn/name

mkdir -p /export/servers/hadoop-2.7.5/hadoopDatas/dfs/snn/edits

 

配置hadoop环境变量：

vim /etc/profile

export HADOOP_HOME=/export/servers/hadoop-2.7.5/bin

export PATH=$PATH:$HADOOP_HOME

 

首次启动 HDFS 时，必须对其进行格式化操作：

bin/hdfs namenode -format

 

启动服务：

sbin/start-dfs.sh

sbin/start-yarn.sh

sbin/mr-jobhistory-daemon.sh start historyserver

 

关闭防火墙:

service iptables stop

chkconfig iptables off

 

查看是否启动成功：

[root@localhost hadoop-2.7.5]# jps
2547 DataNode
3397 Jps
3285 JobHistoryServer
2421 NameNode
2870 ResourceManager
2713 SecondaryNameNode
3148 NodeManager

 

 浏览查看启动页面:

hdfs :         http://192.168.5.106:50070

yarn :         http://192.168.5.106:8088

jobhistory:  http://192.168.5.106:19888