zookeeper安装

 

linux下安装zookeeper

环境:

OS:Rad Hat Linux As5

zookeeper-3.4.6

1.安装步骤

 

1.1 下载安装介质

下载安装介质,下载地址为:

根据情况选择下载的版本,我这里下载的版本是zookeeper-3.4.6.tar.gz

 

1.2 解压并安装

使用hadoop登陆

[hadoop1@node1 ~]$ echo $HADOOP_HOME

/usr1/hadoop

将安装介质拷贝到如下的目录

[root@node1 hbase]# cp zookeeper-3.4.6.tar.gz /usr1

解压

[root@node1 usr1]# tar -zxvf zookeeper-3.4.6.tar.gz

目录改名

[root@node1 usr1]# ls

hadoop  hbase  hbase-0.99.1-bin.tar.gz  hive  zookeeper-3.4.6  zookeeper-3.4.6.tar.gz

[root@node1 usr1]# mv zookeeper-3.4.6 zookeeper

将zookeeper目录权限赋予hadoop用户

[root@node1 usr1]# chown -R hadoop1:hadoop1 ./ zookeeper

 

1.3 添加环境变量

ZOOKEEPER_HOME= /usr1/zookeeper

修改后的红色标识

[hadoop1@node1 ~]$ more .bash_profile

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

        . ~/.bashrc

fi

# User specific environment and startup programs

export JAVA_HOME=/usr/java/jdk1.8.0_05

export JRE_HOME=/usr/java/jdk1.8.0_05/jre

export CLASSPATH=$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

export CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib:$JRE_HOME/lib

export HADOOP_HOME=/usr1/hadoop

HIVE_HOME=/usr1/hive

ZOOKEEPER_HOME=/usr1/zookeeper

export PATH=$HADOOP_HOME/bin:$HIVE_HOME/bin:$ZOOKEEPER_HOME/bin:$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

PATH=$PATH:$HOME/bin

export PATH

在其他所有的节点上做同样的配置

 

1.4 修改zoo.cfg配置文件

将zookeeper-3.4.3/conf目录下的zoo_sample.cfg文件拷贝一份,命名为为zoo.cfg

[hadoop1@node1 conf]$ cp zoo_sample.cfg zoo.cfg

编辑该文件，在最后面添加如下参数

server.1=192.168.56.101:2888:3888

server.2=192.168.56.102:2888:3888

server.3=192.168.56.103:2888:3888

server.4=192.168.56.104:2888:3888

dataDir=/home/hadoop1/zookeeperdir/zookeeper-data

dataLogDir=/home/hadoop1/zookeeperdir/logs

 

1.5 创建myid文件

在zoo.cfg文件中定义的server机器上都创建dataDir和dataLogDir定义的目录，目录属主是hadoop,同时在dataDi目录下创建myid文件，该文件的内容根据server定义的不同而不同，如server.1 该文件的内容是1，server.2 该文件内容是 2，以此类推.

创建目录:

mkdir -p /home/hadoop1/zookeeperdir/zookeeper-data

mkdir -p /home/hadoop1/zookeeperdir/logs

节点1

echo "1">myid

节点2

echo "2">myid

节点3

echo "3">myid

节点4

echo "4">myid

 

1.6 拷贝主节点上的zookeeper到其他的节点

主节点将zookeeper压缩

[hadoop1@node1 usr1]$ tar -cvf zookeeper.tar ./zookeeper

上传到其他的节点

scp zookeeper.tar root@192.168.56.102:/usr1

scp zookeeper.tar root@192.168.56.103:/usr1

scp zookeeper.tar root@192.168.56.104:/usr1

分别到其他节点上做加压缩，并修改权限

[root@node2 usr1]# tar -xvf zookeeper.tar

[root@node2 usr1]# chown -R hadoop1:hadoop1 ./zookeeper

 

1.7 启动zookeeper

在每个节点上执行(hadoop用户下执行)

进入/usr1/zookeeper/bin目录

$cd /usr1/zookeeper/bin

启动

[hadoop1@node1 bin]$ ./zkServer.sh start

JMX enabled by default

Using config: /usr1/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

 

1.8 验证

[hadoop1@node4 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /usr1/zookeeper/bin/../conf/zoo.cfg

Mode: leader

[hadoop1@node1 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /usr1/zookeeper/bin/../conf/zoo.cfg

Mode: follower

[hadoop1@node2 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /usr1/zookeeper/bin/../conf/zoo.cfg

Mode: follower

[hadoop1@node3 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /usr1/zookeeper/bin/../conf/zoo.cfg

Mode: follower

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