open-falcon zookeeper 部署

本文主要是介绍open-falcon zookeeper 部署，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

目的

部署 zookeeper
提供 hadoop 使用

下载

zookeeper 官方下载地址

安装

服务器 3 台, （DNS 解析 略）

ns-yun-020022.133.com
ns-yun-020023.133.com
ns-yun-020024.133.com

提前准备

JDK 及环境变量 (略)

加压并准备

在每台服务器上解压二进制软件并创建目录

[root@myhostname svr]# mkdir /apps/svr -p ; cd /apps/svr
[root@myhostname svr]# tar xf /usr/src/falcon-src/zookeeper/apache-zookeeper-3.6.1-bin.tar.gz
[root@myhostname svr]# ln -s apache-zookeeper-3.6.1-bin zookeeper
[root@myhostname svr]# mkdir /apps/svr/zookeeper/data
[root@myhostname svr]# mkdir /apps/svr/zookeeper/logs

zookeepper 环境变量

/etc/profile

ZOOKEEPER_HOME=/apps/svr/zookeeper
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin:$ZOOKEEPER_HOME/bin
export  JAVA_HOME JRE_HOME CLASS_PATH  PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL ZOOKEEPER_HOME

配置 zookeeper

每台服务器上都需要具有下面配置
cat /apps/svr/zookeeper/conf/zoo.cfg

tickTime=2000
initLimit=10
syncLimit=5
dataDir=/apps/svr/zookeeper/data
clientPort=2181
dataLogDir=/apps/svr/zookeeper/logs/
server.1=ns-yun-020022.133.com:2888:3888
server.2=ns-yun-020023.133.com:2888:3888
server.3=myhostname.133.com:2888:3888

分别为每个服务器创建独立，唯一 ID

[root@ns-yun-020022 svr]#  echo 1 > /apps/svr/zookeeper/data/myid
[root@ns-yun-020023 svr]#  echo 2 > /apps/svr/zookeeper/data/myid
[root@ns-yun-020024 svr]#  echo 3 > /apps/svr/zookeeper/data/myid

启动

分别在每个服务器上执行命令启动

[root@ns-yun-020022 conf]# /apps/svr/zookeeper/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /apps/svr/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

验证

分别在每个服务器上验证其状态即可完成

[root@ns-yun-020023 svr]#  /apps/svr/zookeeper/bin/zkServer.sh  status
ZooKeeper JMX enabled by default
Using config: /apps/svr/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: leader                                               <- leader
[root@ns-yun-020022 zookeeper]# /apps/svr/zookeeper/bin/zkServer.sh  status
ZooKeeper JMX enabled by default
Using config: /apps/svr/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower                                             <- follower
[root@myhostname svr]#  /apps/svr/zookeeper/bin/zkServer.sh  status
ZooKeeper JMX enabled by default
Using config: /apps/svr/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower                                             <- follower 

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