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zookeeper集群及mycat配置搭建

第一部分 zookeeper环境


环境:3台机器


192.168.109.132-134

centos7.2


1 linux环境设置


#关闭防火墙
systemctl stop firewalld.service


systemctl disable firewalld.service



#关闭SELINUX

sed -i's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux


setenforce 0



#设置时间


timedatectl set-ntp no
timedatectl set-timezone Asia/Shanghai

#手动设置为当前时间

timedatectl set-time "2017-10-1713:52:16"
timedatectl set-local-rtc 1
timedatectl set-ntp yes

2 安装配置zookeeper


#安装/root/zookeeper-3.4.10.tar.gz
cd /usr/local
tar zxvf /root/zookeeper-3.4.10.tar.gz
mv zookeeper-3.4.10 zookeeper
cd zookeeper
mkdir -p data log
cd conf
cp zoo_sample.cfg zoo.cfg
vim zoo.cfg


# The number of milliseconds of each tick
# 心跳检查的时间 2秒
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
# 初始化时 连接到服务器端的间隔次数,总时间10*2=20秒
initLimit=10
# The number of ticks that can pass between
# sending a request and getting anacknowledgement
# ZK Leader 和follower 之间通讯的次数,总时间5*2=10秒
syncLimit=5
# the directory where the snapshot isstored.
# do not use /tmp for storage, /tmp here isjust
# example sakes.
# 存储内存中数据库快照的位置,如果不设置参数,更新事务日志将被存储到默认位置/tmp
dataDir=/usr/local/zookeeper/data
# 错误日志的存放位置
dataLogDir=/usr/local/zookeeper/log
# the port at which the clients willconnect
clientPort=2181
server.1=192.168.109.132:2888:3888
server.2=192.168.109.133:2888:3888
server.3=192.168.109.134:2888:3888

图示:

zookeeper集群及mycat配置搭建_linux

cd ../data
touch myid
vim myid


1


#写入1


图示:

zookeeper集群及mycat配置搭建_zookeeper_02


#复制到其他节点


scp -r /usr/local/zookeeper/root@192.168.109.133:/usr/local/zookeeper/
scp -r /usr/local/zookeeper/ root@192.168.109.134:/usr/local/zookeeper/


分别修改myid

vim /usr/local/zookeeper/data/myid

改为2和3,对应IP:192.168.109.133/134


启动:

cd /usr/local/zookeeper/bin
./zkServer.sh start
ZooKeeper JMX enabled by default
Using config:/usr/local/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

图示:

zookeeper集群及mycat配置搭建_linux_03



查看状态,3台机器,其中一个是leader,另外两个是follower


./zkServer.sh status
ZooKeeper JMX enabled by default
Using config:/usr/local/zookeeper/bin/../conf/zoo.cfg
Mode: leader

图示:

Leader节点

zookeeper集群及mycat配置搭建_初始化_04

Follower节点

zookeeper集群及mycat配置搭建_初始化_05

#至此,环境搭建成功


##############################################################




#如果是同一台机器,需要建3个目录
#配置文件
dataDir=/usr/local/server1/data
dataLogDir=/usr/local/server1/log
# the port at which the clients willconnect
clientPort=2181 #每个目录端口号不一样
server.1=192.168.109.132:2888:3888
server.2=192.168.109.133:2889:3889
server.3=192.168.109.134:2890:3890
#myid文件,修改同上
#复制到其他节点
cp -r /usr/local/server1//usr/local/server2/
cp -r /usr/local/server1//usr/local/server3/




#################################################################


第二部分 mycat配置为通过zookeeper进行配置


1 环境准备


mycat两个节点

IP 192.168.109.128/135

mycat1.6.5


2 配置使用zookeeper,两个节点都需要修改


vim /usr/local/mycat/conf/myid.properties




loadZk=true




zkURL=192.168.109.132:2181,192.168.109.133:2181,192.168.109.134:2181 #zookeeper集群节点,逗号分隔




clusterId=mycat-cluster-1 #mycat集群名字




myid=mycat_fz_01 #mycat节点名字,另一台是mycat_fz_02




clusterSize=2 #mycat集群规模




clusterNodes=mycat_fz_01,mycat_fz_02 #mycat集群节点成员,逗号分隔




#clusterSize=3




#clusterNodes=mycat_fz_01,mycat_fz_02,mycat_fz_04




#server booster ; booster install on db same server,will resetall minCon to 2




type=server




boosterDataHosts=dataHost1



图示:

zookeeper集群及mycat配置搭建_zookeeper_06


3 初始化zookeeper配置


#拷贝mycat初始配置,将配置好的conf目录的文件复制到同级目录zkconf下




cp /usr/local/mycat/conf/dnindex.properties/usr/local/mycat/conf/zkconf/




cp /usr/local/mycat/conf/server.xml/usr/local/mycat/conf/zkconf/




cp /usr/local/mycat/conf/schema.xml/usr/local/mycat/conf/zkconf/




cp /usr/local/mycat/conf/rule.xml/usr/local/mycat/conf/zkconf/




#主要是以上文件,也可以将其他公用的配置文件拷贝zkconf








#拷贝所有文件




cp /usr/local/mycat/conf/*.xml/usr/local/mycat/conf/zkconf/




cp /usr/local/mycat/conf/*.properties/usr/local/mycat/conf/zkconf/




cp /usr/local/mycat/conf/*.txt/usr/local/mycat/conf/zkconf/




cp /usr/local/mycat/conf/*.conf/usr/local/mycat/conf/zkconf/

图示:

zookeeper集群及mycat配置搭建_linux_07


#初始化zookeeper
/usr/local/mycat/bin/init_zk_data.sh

图示:

zookeeper集群及mycat配置搭建_linux_08

初始化zookeeper时,配置的zookeeper集群节点必须全部在线


#新加入的mycat不需要做初始化的动作了,直接修改myid.properties连接上zk就可以获取配置,

#mycat集群内的myid.properties需要保持一致
myid=mycat_fz_02 #mycat节点名字,另一台是mycat_fz_01
clusterSize=2 #mycat集群规模
clusterNodes=mycat_fz_01,mycat_fz_02

图示:

zookeeper集群及mycat配置搭建_初始化_09


4 修改zookeeper配置,更新mycat配置


#方法,使用工具ZooInspector或者自己开发程序


运行 E:\apps\ZooInspector\build\zookeeper-dev-ZooInspector.jar

图示:

zookeeper集群及mycat配置搭建_zookeeper_10


打开以后,点击最左侧按钮,填写连接信息


Connect String 192.168.109.132:2181    #连接zookeeper集群内任意节点即可




Session Timeout 5000 #默认




Data Encryption Managerorg.apache.zookeeper.inspector.encryption.BasicDataEncryptionManager


图示

zookeeper集群及mycat配置搭建_linux_11


然后可以在左侧目录下看到所有使用zookeeper的配置项

图示:

zookeeper集群及mycat配置搭建_初始化_12

 

注:在右侧可直接修改配置内容,修改后1分钟内所有mycat节点即可获取更新

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