zookeeper注册中心安装(linux)
2016-07-22 15:21
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1.下载zookeeper-3.4.6
2.解压zookeeper安装包
$tar -zxvf zookeeper-3.4.6.tar.gz
3.在/home/admin/zookeeper-3.4.6目录下创建目录
$cd /home/admin/zookeeper-3.4.6
$mkdir data
$mkdir logs
4.将zookeeper-3.4.6/conf目录下的zoo_sample.cfg文件拷贝一份,命名为zoo.cfg
$cp zoo_sample.cfg zoo.cfg
5.修改zoo.cfg配置文件
$vim 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=/tmp/zookeeper
# the port at which the clients will connect
clientPort=2181
# 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 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=/home/admin/zookeeper-3.4.6/data
dataLogDir=/home/admin/zookeeper-3.4.6/logs
# the port at which the clients will connect
clientPort=2181
#2888,3888 are election port
server.1=192.168.141.101:2888:3888
# 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
其中,
2888端口号是zookeeper服务之间通信的端口,3888是zookeeper与其他应用程序通信的端口。
initLimit:这个配置项是用来配置Zookeeper接受客户端(这里所说的客户端不是用户连接Zookeeper服务器的客户端,而是Zookeeper服务器集群中连接到Leader的Follower服务器)初始化连接时最长能忍受多少个心跳时间间隔数。当已经超过10个心跳的时间(也就是tickTime)长度后Zookeeper服务器还没有收到客户端的返回信息,那么表明这个客户端连接失败。总的时间长度就是10*2000=20秒。
syncLimit:这个配置项标识Leader与Follower之间发送消息,请求和应答时间长度,最长不能超过多少个tickTime的时间长度,总的时间长度就是5*2000=10秒。
server.A=B:C:D:其中A是一个数字,表示这个是第几号服务器;B是这个服务器的IP地址或/etc/hosts文件中映射的IP的主机名;C表示的是这个服务器与集群中的Leader服务器交换信息的端口;D表示的是万一集群中的Leader服务器挂了,需要一个新的端口来重新进行选举,选出一个新的Leader,而这个端口就是用来执行选举时服务器相互通信的端口。如果是伪集群的配置方式,由于B都是一样,所以不同的Zookeeper实例通信端口号不能一样,所以要给他们分配不同的端口号。
6.在dataDir=/home/admin/zookeeper-3.4.6/data下创建myid文件
编辑myid文件,并在对应的IP的机器上输入对应的编号。如在server.1上,myid文件内容就是1。
7.admin用户下修改vim /home/admin/.bash_profile,增加zookeeper配置
# zookeeper env
export ZOOKEEPER_HOME=/home/admin/zookeeper-3.4.6
export PATH=$ZOOKEEPER_HOME/bin:$PATH
使配置文件生效
$source /home/admin/.bash_profile
8.在防火墙中打开要用到的端口2181/2888/3888,切换到root用户,执行以下命令
#chkconfig iptables on
#service iptables start
#vim /etc/sysconfig/iptables
增加以下3行
-A INPUT -m state --state NEW -m tcp -p tcp --dport 2181 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 2888 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3888 -j ACCEPT
重启防火墙
#service iptables restart
查看防火墙端口状态
#service iptables status
表格:filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
2 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:3306
7 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:9000
8 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2181
9 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2888
10 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:3888
11 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
9.启动并测试zookeeper(要用admin用户启动,不要用root)
1)进入/home/admin/zookeeper-3.4.6/bin目录
$zkServer.sh start
2)输入jps命令查看进程
$jps
1456 QuorumPeerMain
1475 Jps
其中,QuorumPeerMain是zookeeper进程,启动正常
3)查看状态
$zkServer.sh status
4)查看zookeeper服务输出信息
由于服务信息输出文件为/home/admin/zookeeper-3.4.6/bin/zookeeper.out
$tail -500f zookeeper.out
10.停止zookeeper进程
$zkServer.sh stop
11.配置zookeeper开机使用admin用户启动
编辑/etc/rc.local文件,加入:
su - admin -c '/home/admin/zookeeper-3.4.6/bin/zkServer.sh start'
2.解压zookeeper安装包
$tar -zxvf zookeeper-3.4.6.tar.gz
3.在/home/admin/zookeeper-3.4.6目录下创建目录
$cd /home/admin/zookeeper-3.4.6
$mkdir data
$mkdir logs
4.将zookeeper-3.4.6/conf目录下的zoo_sample.cfg文件拷贝一份,命名为zoo.cfg
$cp zoo_sample.cfg zoo.cfg
5.修改zoo.cfg配置文件
$vim 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=/tmp/zookeeper
# the port at which the clients will connect
clientPort=2181
# 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 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=/home/admin/zookeeper-3.4.6/data
dataLogDir=/home/admin/zookeeper-3.4.6/logs
# the port at which the clients will connect
clientPort=2181
#2888,3888 are election port
server.1=192.168.141.101:2888:3888
# 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
其中,
2888端口号是zookeeper服务之间通信的端口,3888是zookeeper与其他应用程序通信的端口。
initLimit:这个配置项是用来配置Zookeeper接受客户端(这里所说的客户端不是用户连接Zookeeper服务器的客户端,而是Zookeeper服务器集群中连接到Leader的Follower服务器)初始化连接时最长能忍受多少个心跳时间间隔数。当已经超过10个心跳的时间(也就是tickTime)长度后Zookeeper服务器还没有收到客户端的返回信息,那么表明这个客户端连接失败。总的时间长度就是10*2000=20秒。
syncLimit:这个配置项标识Leader与Follower之间发送消息,请求和应答时间长度,最长不能超过多少个tickTime的时间长度,总的时间长度就是5*2000=10秒。
server.A=B:C:D:其中A是一个数字,表示这个是第几号服务器;B是这个服务器的IP地址或/etc/hosts文件中映射的IP的主机名;C表示的是这个服务器与集群中的Leader服务器交换信息的端口;D表示的是万一集群中的Leader服务器挂了,需要一个新的端口来重新进行选举,选出一个新的Leader,而这个端口就是用来执行选举时服务器相互通信的端口。如果是伪集群的配置方式,由于B都是一样,所以不同的Zookeeper实例通信端口号不能一样,所以要给他们分配不同的端口号。
6.在dataDir=/home/admin/zookeeper-3.4.6/data下创建myid文件
编辑myid文件,并在对应的IP的机器上输入对应的编号。如在server.1上,myid文件内容就是1。
7.admin用户下修改vim /home/admin/.bash_profile,增加zookeeper配置
# zookeeper env
export ZOOKEEPER_HOME=/home/admin/zookeeper-3.4.6
export PATH=$ZOOKEEPER_HOME/bin:$PATH
使配置文件生效
$source /home/admin/.bash_profile
8.在防火墙中打开要用到的端口2181/2888/3888,切换到root用户,执行以下命令
#chkconfig iptables on
#service iptables start
#vim /etc/sysconfig/iptables
增加以下3行
-A INPUT -m state --state NEW -m tcp -p tcp --dport 2181 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 2888 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3888 -j ACCEPT
重启防火墙
#service iptables restart
查看防火墙端口状态
#service iptables status
表格:filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
2 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:3306
7 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:9000
8 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2181
9 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2888
10 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:3888
11 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
9.启动并测试zookeeper(要用admin用户启动,不要用root)
1)进入/home/admin/zookeeper-3.4.6/bin目录
$zkServer.sh start
2)输入jps命令查看进程
$jps
1456 QuorumPeerMain
1475 Jps
其中,QuorumPeerMain是zookeeper进程,启动正常
3)查看状态
$zkServer.sh status
4)查看zookeeper服务输出信息
由于服务信息输出文件为/home/admin/zookeeper-3.4.6/bin/zookeeper.out
$tail -500f zookeeper.out
10.停止zookeeper进程
$zkServer.sh stop
11.配置zookeeper开机使用admin用户启动
编辑/etc/rc.local文件,加入:
su - admin -c '/home/admin/zookeeper-3.4.6/bin/zkServer.sh start'
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