Hadoop 2.2.0 分布式集群搭建
来源:互联网 发布:linux uboot启动过程 编辑:程序博客网 时间:2024/06/04 18:58
本人安装的Hadoop2.2的系统是 64 bit CentOS 6.5,安装步骤如下。
1. 预备条件
* 安装了Java 6.0以上版本的JDK;
* 必备开发库,运行脚本
yum -y install lzo-devel zlib-devel gcc autoconf automake libtool cmake openssl-devel#--------------------------------- lzo-devel i686 2.03-3.1.el6 base 31 k openssl-devel i686 1.0.1e-16.el6_5.7 updates 1.2 M zlib-devel i686 1.2.3-29.el6 base 44 kInstalling for dependencies: keyutils-libs-devel i686 1.4-4.el6 base 28 k krb5-devel i686 1.10.3-15.el6_5.1 updates 493 k libcom_err-devel i686 1.41.12-18.el6 base 32 k libselinux-devel i686 2.0.94-5.3.el6_4.1 base 136 k libsepol-devel i686 2.0.41-4.el6 base 64 k lzo-minilzo
* Maven 3.0 or 之后的版本
* Findbugs 1.3.9 (可以忽略,官方文档说需要,我觉得没有用到)
* ProtocolBuffer 2.5.0
* CMake 2.6 or newer (第二点已经帮我们安装了)
* machine链接到互联网
2. 下载Hadoop 2.2 的源码,编译。如果是32bit系统,可以跳过此步骤。
原因是官方网站已经帮我们编译好了,可以直接下载来使用。
mvn clean package -Pdist,native -DskipTests -Dtar
3. 配置集群中的机器
编辑每台机的hosts文件
sudo vim /etc/hosts
#第一台是master机,其它是slave机192.168.177.172 hadoop-master hbase-master 192.168.177.158 machine-0 192.168.177.167 machine-1 192.168.177.168 machine-2
4. 设置SSH无密码链接
4.1 在每台机上运行:
ssh-keygen -t rsa
接着不断按Enter键,记住不能够设置密码。不然,不能无密码链接
4.2 进入到.ssh 目录中,运行:
cp id_rsa.pub authorized_keys
4.3 将本机的蜜月复制到其它机器上,命令:
#master machine ssh-copy-id -i ~/.ssh/id_rsa.pub machine-0 ssh-copy-id -i ~/.ssh/id_rsa.pub machine-1 ssh-copy-id -i ~/.ssh/id_rsa.pub machine-2 #slavemachine ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop-master
5. 配置Hadoop 文件(解压编译好的文件)
5.1 配置环境
$cd ~$vi .bashrc paste following to the end of the file #Hadoop variablesexport JAVA_HOME=/usr/lib/jvm/jdk/jdk1.6.0_43export HADOOP_INSTALL=/usr/local/hadoopexport PATH=$PATH:$HADOOP_INSTALL/binexport PATH=$PATH:$HADOOP_INSTALL/sbinexport HADOOP_MAPRED_HOME=$HADOOP_INSTALLexport HADOOP_COMMON_HOME=$HADOOP_INSTALLexport HADOOP_HDFS_HOME=$HADOOP_INSTALLexport YARN_HOME=$HADOOP_INSTALL###end of paste $source ~/.bashrc
5.2 配置hadoop-en.sh
export JAVA_HOME=/usr/lib/jvm/jdk/jdk1.6.0_43
5.3 配置core-site.xml
<configuration> <property> <name>fs.default.name</name> <value>hdfs://hadoop-master:9000/</value> </property> <property> <name>dfs.permissions</name> <value>false</value> </property> <property> <name>hadoop.tmp.dir</name> <value>/opt/hadoop/tmp</value> </property></configuration>
5.4 配置hdfs-site.xml
<configuration> <property> <name>dfs.data.dir</name> <value>/opt/hadoop/dfs/name/data</value> <final>true</final> </property> <property> <name>dfs.name.dir</name> <value>/opt/hadoop/dfs/name</value> <final>true</final> </property> <property> <name>dfs.replication</name> <value>3</value> </property></configuration>
5.5 配置mapred-site.xml
<configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property></configuration>
5.6 配置yarn-site.xml
<!-- Site specific YARN configuration properties --> <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> <property> <name>yarn.resourcemanager.resource-tracker.address</name> <value>hadoop-master:8025</value> </property> <property> <name>yarn.resourcemanager.scheduler.address</name> <value>hadoop-master:8030</value> </property> <property> <name>yarn.resourcemanager.address</name> <value>hadoop-master:8040</value> </property>
5.7 格式化namenode节点
hdfs namenode -format
5.8 将配置好的hadoop分发到各个机器上,比如:
scp -r /opt/hadoop machine-0:/opt/
5.9 配置master主机,在slave文件中添加:
machine-0
machine-1
machine-2
5.10 启动服务:
start-dfs.sh ..........
start-yarn.sh
...........
6. 测试Hadoop
向hdfs中上传文件,将文件abc.txt 添加到input目录下: hdfs dfs –put abc.txt /input
运行测试实例:
hadoop jar /op/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-
2.2
.
0
.jar pi
2
5
转载请附加处处,谢谢!
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