vmware安装hadoop集群(二)_linux,hadoop,hive相关配置

1、/etc/group文件包含所有组，/etc/shadow和/etc/passwd系统存在的所有用户名

su –
groupadd hadoop
useradd -s /bin/bash -m hadoop
passwd hadoop

 

2、

（1）输入visudo

（2）添加hadoop    ALL=(ALL:ALL) ALL，

（3）^X,退出，保存文件至/etc/sudoers

（4）相关知识如下：

visudo打开后，下面不是有文字说明的，^X,这种样子的。

^表示Ctrl

 

讲解：root    ALL=(ALL) ALL

root表示被授权的用户，这里是根用户；

第一个ALL表示所有计算机；

第二个ALL表示所有用户；

第三个ALL表示所有命令；

全句的意思是：授权根用户在所有计算机上以所有用户的身份运行所有文件。

%admin ALL=(ALL) ALL同上面一样，只不过被授权的成了admin这个组。

 

3、安装jdk,配置如下：

vim /etc/profile

追加

#set java hadoop hive
JAVA_HOME=/usr/local/jdk
JRE_HOME=/usr/local/jdk/jre
HADOOP_HOME=/usr/local/hadoop
HIVE_HOME=/usr/local/hive
CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
PATH=.:$JAVA_HOME/bin:$JRE_HOME/bin:$HADOOP_HOME/bin:$HIVE_HOME/bin:$PATH
export JAVA_HOME
export JRE_HOME
export HADOOP_HOME
export HIVE_HOME
export CLASSPATH
export PATH

 

source /etc/profile

 

 

4、配置hosts和hostname

vim /etc/hostname,改为namenode（datanode改为datanode的名字）

 

每一台机都需要配置这个

vim /etc/hosts
192.168.110.130 master
192.168.110.131 slave1
192.168.110.132 slave2

  

 

5、apt-get install openssh-server

namenode操作如下：

 

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
scp .ssh/authorized_keys slave1:~/.ssh/authorized_keys
scp .ssh/authorized_keys slave2:~/.ssh/authorized_keys

 

 

6、

chown -fR hadoop:hadoop /usr/local/hadoop-1.0.3
chown -fR hadoop:hadoop /usr/local/hadoop

vim hadoop-env.sh
export JAVA_HOME=/usr/local/jdk
export HADOOP_HOME=/usr/local/hadoop
export HADOOP_HOME_WARN_SUPPRESS=TRUE

vim core-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- 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>/home/hadoop/tmp</value>
    </property>
</configuration>

vim hdfs-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
    <property>
       <name>dfs.replication</name>
       <value>2</value>
    </property>
    <property>
       <name>dfs.permissions</name>
       <value>false</value>
    </property>
</configuration>

vim mapred-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
    <property>
       <name>mapred.job.tracker</name>
       <value>master:9001</value>
    </property>
</configuration>

vim masters
master

vim slaves
slave1
slave2

  

 

7、

hadoop namenode -format

start-all.sh

 

hadoop dfsadmin –report

http://master:50070

http://master:50030

 

8、hive

(1)apt-get install mysql-server-5.5

(2)创建 mysql 用户

 mysql> CREATE USER 'hive'@'localhost' IDENTIFIED BY '123456789'; 

 mysql> GRANT ALL PRIVILEGES ON *.* TO 'hive'@'localhost' WITH GRANT OPTION;

(3)将mysql jdbc driver jar放在 $HIVE_HOME/lib/ 下面

(4)vim hive-site.xml

<configuration>
    <property>
       <name>hive.exec.scratchdir</name>
       <value>/tmp/hive-${user.name}</value>
       <description>Scratch space for Hive jobs</description>
    </property>
    <property>
       <name>hive.metastore.warehouse.dir</name>
       <value>/user/hive/warehouse</value>
       <description>location of default database for the warehouse</description>
    </property>
    <property>    
       <name>hive.metastore.local</name>
       <value>true</value>
       <description>controls whether to connect to remove metastore server or open a new metastore server in Hive Client JVM</description>
    </property>
    <property>
       <name>javax.jdo.option.ConnectionURL</name>
       <value>jdbc:mysql://localhost:3306/hive?createDatabaseIfNotExist=true</value>
       <description>JDBC connect string for a JDBC metastore</description>
    </property>
    <property>
       <name>javax.jdo.option.ConnectionDriverName</name>
       <value>com.mysql.jdbc.Driver</value>
       <description>Driver class name for a JDBC metastore</description>
    </property>
    <property>
       <name>javax.jdo.option.ConnectionUserName</name>
       <value>hive</value>
       <description>username to use against metastore database</description>
    </property>
    <property>
       <name>javax.jdo.option.ConnectionPassword</name>
       <value>000</value>
       <description>password to use against metastore database</description>
    </property>
</configuration>