一、java环境安装
1.下载jdk
去jdk下载地址下载或者在服务器中用命令下载
- wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/otn-pub/java/jdk/8u191-b12/2787e4a523244c269598db4e85c51e0c/jdk-8u191-linux-x64.tar.gz
注意，以上jdk-8u191-linux-x64.tar.gz的地址是会变的，所以下载地址需要替换成自己的。
2.安装
创建目录
- cd /usr/local/
- mkdir java
- cd java
接着把安装包上传到java文件夹中,解压
- tar zxvf jdk-8u191-linux-x64.tar.gz
配置环境变量
vi /etc/profile
在文件的末尾输入
- export JAVA_HOME=/usr/local/java/jdk1.8.0_191
- export PATH=$PATH:$JAVA_HOME/bin
这里注意自己的是不是jdk1.8.0_191
使环境变量在当前bash中生效
source /etc/profile
二、zookeeper安装
1.下载
zookeeper下载地址下载安装包
或者命令下载
- cd /usr/local
- mkdir zookeeper
- cd zookeeper
- wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.13/zookeeper-3.4.13.tar.gz
tar zxvf zookeeper-3.4.13.tar.gz
2.配置
创建data文件夹，打开配置文件
- cd zookeeper-3.4.13
mkdir data
cd conf - mv zoo_sample.cfg zoo.cfg
- vi zoo.cfg
- # 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.
- # do not use /tmp for storage, /tmp here is just
- # example sakes.
- dataDir=/usr/local/zookeeper/zookeeper-1/data
- dataLogDir=/usr/local/zookeeper/zookeeper-1/log
- # the port at which the clients will connect
- clientPort=2181
- # the maximum number of client connections.
- # increase this if you need to handle more clients
- maxClientCnxns=60
- server.1=47.105.232.148:2888:3888
- server.2=47.105.232.148:2889:3889
- server.3=47.105.232.148:2890:3890
- #
- # Be sure to read the maintenance section of the
- # administrator guide before turning on autopurge.
- #
- # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
- #
- # The number of snapshots to retain in dataDir
- #autopurge.snapRetainCount=3
- # Purge task interval in hours
- # Set to "0" to disable auto purge feature
- #autopurge.purgeInterval=1
- quorumListenOnAllIPs=true
以上红色的需要注意，因为我用的是一台服务器，所以三个zookeeper这里配置应该不同，不然会冲突，黄色部分也要确保 server.1、server.2和server.3端口不冲突，如果是三台服务器的话就不需要了。
这里还需要注意的是，如果是在云服务器上部署的，需要配置quorumListenOnAllIPs=true，用以监听所有网卡，这个和云服务器的一些虚拟技术有关，否则的话会抛异常
- [myid:0] - ERROR [/47.94.204.115:3888:QuorumCnxManager$Listener@763] - Exception while listening
- java.net.BindException: 无法指定被请求的地址 (Bind failed)
- at java.net.PlainSocketImpl.socketBind(Native Method)
- at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
- at java.net.ServerSocket.bind(ServerSocket.java:375)
- at java.net.ServerSocket.bind(ServerSocket.java:329)
- at org.apache.zookeeper.server.quorum.QuorumCnxManager$Listener.run(QuorumCnxManager.java:742)
回到zookeeper目录下
- cp -r zookeeper-3.4.13/ zookeeper-1
- cp -r zookeeper-3.4.13/ zookeeper-2
- cp -r zookeeper-3.4.13/ zookeeper-3
接着依次修改配置文件中 dataDir dataLogDir clientPort
最后记得创建各自的myid
- echo "1" > zookeeper-1/data/myid
- echo "2" > zookeeper-2/data/myid
- echo "3" > zookeeper-4/data/myid
依次启动
- ./zookeeper-1/bin/zkServer.sh start
- ./zookeeper-2/bin/zkServer.sh start
- ./zookeeper-3/bin/zkServer.sh start
查看是否成功
这个是显示失败了，这里可能是配置文件出错或者有什么防火墙
我这里是因为云主机的安全组给挡住了
修改好之后先关闭
- ./zookeeper-1/bin/zkServer.sh stop
- ./zookeeper-2/bin/zkServer.sh stop
- ./zookeeper-3/bin/zkServer.sh stop
再次启动，成功
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