关闭防火墙
//关闭防火墙 systemctl stop firewalld.service //禁止防火墙开机启动 systemctl disable firewalld.service
安装
wget -c https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz tar -zxvf zookeeper-3.4.11.tar.gz mkdir -p /usr/local/server/zookeeper-3.4.11 mv zookeeper-3.4.11 /usr/local/server/zookeeper-3.4.11 cd /usr/local/server/zookeeper-3.4.11 mkdir data_1 mkdir logs cd conf cp zoo_sample.cfg zoo.cfg vi zoo.cfg
编辑zoo.cfg，添加data_1和log目录，如下：
# 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/server/zookeeper-3.4.11/data_1 dataLogDir=/usr/local/server/zookeeper-3.4.11/logs # the port at which the clients will connect clientPort=2181 server.1=192.168.133.129:2888:3888 # the maximum number of client connections. # increase this if you need to handle more clients #maxClientCnxns=60 # # 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
在zoo.cfg中的dataDir指定的目录下，新建myid文件。
例如：/usr/local/server/zookeeper-3.4.11/data_1下，新建myid。在myid文件中输入1。表示为server.1。 如果为data_2，则myid文件中的内容为 2。
此配置不成功，启动zookeeper不成功
[root@bogon bin]# ./zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/server/zookeeper/bin/../conf/zoo.cfg Error contacting service. It is probably not running.
zookeeper.out 会打印以下错误
2018-02-08 00:12:29,850 [myid:] - ERROR [main:QuorumPeerConfig@347] - Invalid configuration, only one server specified (ignoring)
启动zookeeper
[root@bogon zookeeper]# cd .. [root@bogon zookeeper]# cd bin [root@bogon bin]# ls README.txt zkCli.cmd zkEnv.cmd zkServer.cmd zookeeper.out zkCleanup.sh zkCli.sh zkEnv.sh zkServer.sh [root@bogon bin]# ./zkServer.sh start ZooKeeper JMX enabled by default Using config: /usr/local/server/zookeeper/bin/../conf/zoo.cfg Starting zookeeper ... STARTED
查看zookeeper状态
[root@bogon bin]# ./zkServer.sh status ZooKeeper JMX enabled by default Using config: /usr/local/server/zookeeper/bin/../conf/zoo.cfg Mode: standalone
看到Mode: standalone 表示启动成功
查看zookeeper输出文件
tail zookeeper.out
链接zookeepe客户端
[root@bogon bin]# ./zkCli.sh -server 192.168.133.129:2181 Connecting to 192.168.133.129:2181 2018-02-09 00:14:32,045 [myid:] - INFO [main:Environment@100] - Client environment:zookeeper.version=3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0, built on 11/01/2017 18:06 GMT 2018-02-09 00:14:32,051 [myid:] - INFO [main:Environment@100] - Client environment:host.name=bogon 2018-02-09 00:14:32,052 [myid:] - INFO [main:Environment@100] - Client environment:java.version=1.8.0_151 2018-02-09 00:14:32,060 [myid:] - INFO [main:Environment@100] - Client environment:java.vendor=Oracle Corporation 2018-02-09 00:14:32,060 [myid:] - INFO [main:Environment@100] - Client environment:java.home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.el7_4.x86_64/jre 2018-02-09 00:14:32,061 [myid:] - INFO [main:Environment@100] - Client environment:java.class.path=/usr/local/server/zookeeper3/bin/../build/classes:/usr/local/server/zookeeper3/bin/../build/lib/*.jar:/usr/local/server/zookeeper3/bin/../lib/slf4j-log4j12-1.6.1.jar:/usr/local/server/zookeeper3/bin/../lib/slf4j-api-1.6.1.jar:/usr/local/server/zookeeper3/bin/../lib/netty-3.10.5.Final.jar:/usr/local/server/zookeeper3/bin/../lib/log4j-1.2.16.jar:/usr/local/server/zookeeper3/bin/../lib/jline-0.9.94.jar:/usr/local/server/zookeeper3/bin/../lib/audience-annotations-0.5.0.jar:/usr/local/server/zookeeper3/bin/../zookeeper-3.4.11.jar:/usr/local/server/zookeeper3/bin/../src/java/lib/*.jar:/usr/local/server/zookeeper3/bin/../conf: 2018-02-09 00:14:32,061 [myid:] - INFO [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib 2018-02-09 00:14:32,061 [myid:] - INFO [main:Environment@100] - Client environment:java.io.tmpdir=/tmp 2018-02-09 00:14:32,061 [myid:] - INFO [main:Environment@100] - Client environment:java.compiler=<NA> 2018-02-09 00:14:32,061 [myid:] - INFO [main:Environment@100] - Client environment:os.name=Linux 2018-02-09 00:14:32,061 [myid:] - INFO [main:Environment@100] - Client environment:os.arch=amd64 2018-02-09 00:14:32,062 [myid:] - INFO [main:Environment@100] - Client environment:os.version=3.10.0-693.5.2.el7.x86_64 2018-02-09 00:14:32,062 [myid:] - INFO [main:Environment@100] - Client environment:user.name=root 2018-02-09 00:14:32,062 [myid:] - INFO [main:Environment@100] - Client environment:user.home=/root 2018-02-09 00:14:32,062 [myid:] - INFO [main:Environment@100] - Client environment:user.dir=/usr/local/server/zookeeper3/bin 2018-02-09 00:14:32,064 [myid:] - INFO [main:ZooKeeper@441] - Initiating client connection, connectString=192.168.133.129:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@3eb07fd3 2018-02-09 00:14:32,123 [myid:] - INFO [main-SendThread(192.168.133.129:2181):ClientCnxn$SendThread@1035] - Opening socket connection to server 192.168.133.129/192.168.133.129:2181. Will not attempt to authenticate using SASL (unknown error) Welcome to ZooKeeper! JLine support is enabled 2018-02-09 00:14:32,240 [myid:] - INFO [main-SendThread(192.168.133.129:2181):ClientCnxn$SendThread@877] - Socket connection established to 192.168.133.129/192.168.133.129:2181, initiating session 2018-02-09 00:14:32,249 [myid:] - INFO [main-SendThread(192.168.133.129:2181):ClientCnxn$SendThread@1302] - Session establishment complete on server 192.168.133.129/192.168.133.129:2181, sessionid = 0x100005b37d20001, negotiated timeout = 30000 WATCHER:: WatchedEvent state:SyncConnected type:None path:null
停止zookeeper
[root@bogon bin]# ./zkServer.sh stop ZooKeeper JMX enabled by default Using config: /usr/local/server/zookeeper/bin/../conf/zoo.cfg Stopping zookeeper ... STOPPED
防火墙开放端口
在防火墙中打开要用到的端口，一般默认是开放了22端口，所以我们才能使用远程工具使用22进行连接，现在配置2181 2888 3888端口
chkconfig iptables on设置开机启动
service iptables start 启动防火墙
[root@bogon server]# chkconfig iptables on error reading information on service iptables: No such file or directory [root@bogon server]# service iptables start Redirecting to /bin/systemctl start iptables.service Failed to start iptables.service: Unit not found.
报以上的错误，则需要 执行yum install iptables-services下载安装插件
[root@bogon server]# yum install iptables-services Loaded plugins: fastestmirror, langpacks ........ Installed size: 25 k Is this ok [y/d/N]: y Downloading packages: ...... Complete!
完成后,再次执行chkconfig iptables on，service iptables start命令
[root@bogon server]# chkconfig iptables on Note: Forwarding request to 'systemctl enable iptables.service'. Created symlink from /etc/systemd/system/basic.target.wants/iptables.service to /usr/lib/systemd/system/iptables.service. [root@bogon server]# service iptables start Redirecting to /bin/systemctl start iptables.service
开放防火墙端口
[root@bogon server]# vi /etc/sysconfig/iptables
添加zookeeper要开放的端口 2181 2888 3888
# sample configuration for iptables service # you can edit this manually or use system-config-firewall # please do not ask us to add additional ports/services to this default configuration *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT #zookeeper -A INPUT -p tcp -m state --state NEW -m tcp --dport 2181 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 2888 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 3888 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT
重启防火墙
[root@bogon server]# service iptables restart
Redirecting to /bin/systemctl restart iptables.service
测试是否开通
[root@bogon server]# telnet 192.168.133.129 2181 Trying 192.168.133.129... Connected to 192.168.133.129. Escape character is '^]'.
这样就表明开通了防火墙