Mycat 集群配置同步

Posted 2021-04-28 lvlvstart

使用zookeeper统一存储分发配置

版本信息

名称	版本号	备注
mysql	5.7	数据库
mycat	1.6.5	mycat server 中间件
zookeeper	3.4.14	提供mycat集群全局配置

部署情况

主机名	IP	角色
node1	192.168.114.129	Mycat ，Zookeeper， MySql
node2	192.168.114.133	Zookeeper,Mysql
node3	192.168.114.136	Zookeeper,Mysql
node4	192.168.114.137	Mycat,Mysql

zookeeper 集群安装

zookeepr 依赖 java环境，所以机器上必须提取安装jdk

#node1
wget https://mirror.bit.edu.cn/apache/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz
scp zookeeper-3.4.14.tar.gz root@192.168.114.133:/www/soft
scp zookeeper-3.4.14.tar.gz root@192.168.114.136:/www/soft
#node1 node2 node3
tar -zxvf zookeeper-3.4.14.tar.gz
mv zookeeper-3.4.14 /usr/local
mv zookeeper-3.4.14 zookeeper
cd conf
cp zoo_sample.cfg zoo.cfg

cd /usr/local/zookeeper
mkdir data

#node1 > 0 node2 >1 node3 > 2
echo 0 > ./data/myid #每个zk配置一个id
echo 1 > ./data/myid
echo 2 > ./data/myid

#node1 node2 node3
vim conf/zoo.cfg
	dataDir=/usr/local/zookeeper/data
	server.0=192.168.114.129:2888:3888
	server.1=192.168.114.133:2888:3888
	server.2=192.168.114.136:2888:3888
	
#启动
./bin/skServer.sh start

#dataDir 设置zk目录
#server 设置集群目录

配置mycat 从 zookeeper获取配置

#node1
vim /usr/local/mycat/conf/myid.properties
	loadZk=true
	zkURL=192.168.114.129:2181,192.168.114.133:2181,192.168.114.133:2181
	clusterId=mycat-cluster-1
	myid=mycat_01
	clusterSize=2
	clusterNodes=mycat_01,mycat_02
	#server  booster  ;   booster install on db same server,will reset all minCon to 2
	type=server
	boosterDataHosts=dataHost1
#node4

	

初始mycat配置到zookeeper

cd /usr/local/mycat/conf
cp schema.xml server.xml rule.xml sequence_db_conf.properties zkconf
cd ..
./bin/init_zk_data.sh

进入到zk中查看是否同步成功

./bin/zkCli.sh
ls /mycat/mycat-cluster-1
...
get /mycat/mycat-cluster-1/schema/dataHost

启动mycat 验证配置是否同步成功

#node1 node4
mycat stop
mycat start