ubuntu下hadoop 2.3.0配置
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环境系统:ubuntu12.4
hadoop版本:2.3.0
一。下载hadoop-2.3.0-tar.gz解压
二修改配置文件,配置文件都在${hadoop-2.3.0}/etc/hadoop路径下
1、core-site.xml
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/usr/local/hadoop-2.3.0/tmp/hadoop-${user.name}</value>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:8020</value>
</property>
</configuration>
2、hdfs-site.xml
<configuration>
<property>
<name>dfs.namenode.name.dir</name>
<value>/usr/local/hadoop-2.3.0/tmp/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/usr/local/hadoop-2.3.0/tmp/dfs/data</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
3、mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
4、yarn-site.xml
<configuration>
<property>
<name>yarn.resourcemanager.hostname</name>
<value>localhost</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
</configuration>
三、命令启动
hadoop脚本命令在${hadoop-2.3.0}/bin和${hadoop-2.3.0}/sbin目录下,可以根据路径执行命令
也可以配置环境变量,简便命令书写
使用命令:sudo /etc/profile
export
HADOOP_HOME=
/usr/local/hadoop-2
.3.0
export
PATH=$PATH:$HADOOP_HOME
/bin
:$HADOOP_HOME
/sbin
export
HADOOP_MAPRED_HOME=$HADOOP_HOME
export
HADOOP_COMMON_HOME=$HADOOP_HOME
export
HADOOP_HDFS_HOME=$HADOOP_HOME
export
YARN_HOME=$HADOOP_HOME
export
HADOOP_CONF_DIR=$HADOOP_HOME
/etc/hadoop
export
YARN_CONF_DIR=$HADOOP_HOME
/etc/hadoop
hdfs namenode -format
四、启动和关闭hadoop
1. 启动脚本一:
sujx@ubuntu:~$ hadoop-daemon.sh start namenode
starting namenode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-namenode-ubuntu.out
sujx@ubuntu:~$ hadoop-daemon.sh start datanode
starting datanode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-datanode-ubuntu.out
sujx@ubuntu:~$ hadoop-daemon.sh start secondarynamenode
starting secondarynamenode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-secondarynamenode-ubuntu.out
sujx@ubuntu:~$ jps
9310 SecondaryNameNode
9345 Jps
9140 NameNode
9221 DataNode
sujx@ubuntu:~$ yarn-daemon.sh start resourcemanager
starting resourcemanager, logging to /opt/hadoop-2.2.0/logs/yarn-sujx-resourcemanager-ubuntu.out
sujx@ubuntu:~$ yarn-daemon.sh start nodemanager
starting nodemanager, logging to /opt/hadoop-2.2.0/logs/yarn-sujx-nodemanager-ubuntu.out
sujx@ubuntu:~$ jps
9310 SecondaryNameNode
9651 NodeManager
9413 ResourceManager
9140 NameNode
9709 Jps
9221 DataNode
sujx@ubuntu:~$
2. 启动脚本二:
sujx@ubuntu:~$ start-dfs.sh
Starting namenodes on [hd2-single]
hd2-single: starting namenode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-namenode-ubuntu.out
hd2-single: starting datanode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-datanode-ubuntu.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-secondarynamenode-ubuntu.out
sujx@ubuntu:~$ start-yarn.sh
starting yarn daemons
starting resourcemanager, logging to /opt/hadoop-2.2.0/logs/yarn-sujx-resourcemanager-ubuntu.out
hd2-single: starting nodemanager, logging to /opt/hadoop-2.2.0/logs/yarn-sujx-nodemanager-ubuntu.out
sujx@ubuntu:~$ jps
11414 SecondaryNameNode
10923 NameNode
11141 DataNode
12038 Jps
11586 ResourceManager
11811 NodeManager
sujx@ubuntu:~$
3. 启动脚本三:
sujx@ubuntu:~$ start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [hd2-single]
hd2-single: starting namenode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-namenode-ubuntu.out
hd2-single: starting datanode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-datanode-ubuntu.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /opt/hadoop-2.2.0/logs/hadoop-sujx-secondarynamenode-ubuntu.out
starting yarn daemons
starting resourcemanager, logging to /opt/hadoop-2.2.0/logs/yarn-sujx-resourcemanager-ubuntu.out
hd2-single: starting nodemanager, logging to /opt/hadoop-2.2.0/logs/yarn-sujx-nodemanager-ubuntu.out
sujx@ubuntu:~$ jps
14156 NodeManager
14445 Jps
13267 NameNode
13759 SecondaryNameNode
13485 DataNode
13927 ResourceManager
sujx@ubuntu:~$
其实这三种方式最终效果都是相同,他们内部也都是相互调用关系。对应的结束脚本也简单:
1. 结束脚本一:
sujx@ubuntu:~$ hadoop-daemon.sh stop nodemanager
sujx@ubuntu:~$ hadoop-daemon.sh stop resourcemanager
sujx@ubuntu:~$ hadoop-daemon.sh stop secondarynamenode
sujx@ubuntu:~$ hadoop-daemon.sh stop datanode
sujx@ubuntu:~$ hadoop-daemon.sh stop namenode
2. 结束脚本二:
sujx@ubuntu:~$ stop-yarn.sh
sujx@ubuntu:~$ stop-dfs.sh
3. 结束脚本三:
sujx@ubuntu:~$ stop-all.sh
查看hadoop namenode或hdfs的状态:http://localhost:50070/
查看job运行情况:http://localhost:8088/
至此,单机伪分布就已经部署完毕。
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