大数据（四）-----zookeeper安装

1.安装规划

  见大数据（一）-----HADOOP安装

2.zookeeper安装

• 下载并解压ZooKeeper-3.4.6.tar.gz，安装目录为：/home/hadoop/zookeeper-3.3.6，zookeeper集群安装需为奇数台（重要）

tar -zxvf zookeeper-3.4.6.tar.gz

• 配置环境变量

vi /etc/profile
export ZOOKEEPER_HOME=/home/hadoop/zookeeper-3.4.6
source /etc/profil

 

• 在conf目录下修改zoo.cfg，配置好dataDir和dataLogDir两个目录

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# the port at which the clients will connect
clientPort=2181
dataDir=/home/hadoop/zookeeper-3.3.6/dataDir
dataLogDir=/home/hadoop/zookeeper-3.3.6/logs
server.1=10.112.171.49:2888:3888
server.2=10.112.171.50:2888:3888
server.3=10.112.171.51:2888:3888

•  将安装好的zookeeper拷贝到集群其他机器的同样目录下，配置相同的环境变量
• 在三台机器的dataDir目录下，分别新建文件myid，在10.112.171.49写入1，10.112.171.50写入2，10.112.171.51写入3，标识三台机器
• 在每台机器上启动zookeeper，并检查状态

./zkServer.sh start
./zkServer.sh status
./zkServer.sh stop