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Mycat2 deploy master-slave MariaDB

2022-07-26 08:27:00 【csg103】

mycat Yes Mariadb Support is not perfect , It seems that the current test will not fail over . One master and one slave can be used . But it does not support comment line commands in a friendly way , You need to create your own configuration .

install mycat2

Download address

Index of /2.0/

Two files need to be downloaded

mycat2-install-template-1.21.zip

mycat2-1.22-release-jar-with-dependencies.jar

 install   hold JAR Move to... With compressed files lib Next   And give execute file permission

chmod -R 777 mycat wrapper-linux-x86-32 wrapper-linux-x86-64 wrapper-linux-ppc-64

  Modify the data source  vim /usr/local/mycat/conf/database/prototypeDs.datasource.json

{
        "dbType":"mysql",
        "idleTimeout":60000,
        "initSqls":[],
        "initSqlsGetConnection":true,
        "instanceType":"READ_WRITE",
        "maxCon":1000,
        "maxConnectTimeout":3000,
        "maxRetryCount":5,
        "minCon":1,
        "name":"prototypeDs",
        "password":"123456",
        "type":"JDBC",
        "url":"jdbc:mysql://192.168.10.30:3306/mycatdb?useUnicode=true&serverTimezone=Asia/Shanghai&characterEncoding=UTF-8",
        "user":"root",
        "weight":0
}

start-up

console The front-end start start Background start

Maintenance port 9006 Intranet access

The use of port 8006

One master and one slave deployment

1. Logical library file

link mycat8066 port , Create a logical library mydb1, Then the corresponding configuration file will be generated mydb1.schema.json, And create a table test Field id name Used for testing .

vi /usr/local/mycat/conf/schemas/mydb1.schema.json

{
        "customTables":{},
        "globalTables":{},
        "normalProcedures":{},
        "normalTables":{
                "test":{
                        "createTableSQL":"CREATE TABLE `mydb1`.`test` (\n\t`id` INT NOT NULL,\n\t`name` VARCHAR(45) NULL,\n\tPRIMARY KEY (`id`)\n)",
                        "locality":{
                                "schemaName":"mydb1",
                                "tableName":"test",
                                "targetName":"mycluse"
                        }
                }
        },
        "schemaName":"mydb1",
        "shardingTables":{},
        "targetName":"mycluse", // Here is the cluster name , In the cluster configuration file 
        "views":{}
}
~

2. Cluster files

Unable to execute due to annotation execution ,( May be Yes Mariadb Not compatible ？). So edit the configuration file directly .

vi /usr/local/mycat/conf/clusters/mycluse.cluster.json

{
        "clusterType":"MASTER_SLAVE",  // Choose master-slave mode here 
        "heartbeat":{
                "heartbeatTimeout":1000,
                "maxRetry":3,
                "minSwitchTimeInterval":300,
                "slaveThreshold":0
        },
        "masters":[
                "rwSepr"         Add main services , Fill in the database name 
        ],
        "replicas":["rwSepw"],   Add a copy of the , Fill in the database name 
        "maxCon":2000,
        "name":"mycluse",          The name is consistent with the name filled in the logic library 
        "readBalanceType":"BALANCE_ALL",  Random all readable 
        "switchType":"SWITCH"
}

3. Database instance file

The database cluster has been set up , Refer to the previous article .

vi /usr/local/mycat/conf/datasources/rwSepr.datasource.json

{
        "dbType":"mysql",
        "idleTimeout":60000,
        "initSqls":[],
        "initSqlsGetConnection":true,
        "instanceType":"READ_WRITE",     read   Write   Reading and writing 
        "maxCon":1000,
        "maxConnectTimeout":3000,
        "maxRetryCount":5,
        "minCon":1,
        "name":"rwSepr",                 name , Use in the above cluster 
        "password":"123456",
        "type":"JDBC",
        "url":"jdbc:mysql://192.168.10.30:3306/mydb1?useUnicode=true&serverTimezone=Asia/Shanghai&characterEncoding=UTF-8",
        "user":"root",
        "weight":0
}

vi /usr/local/mycat/conf/datasources/rwSepw.datasource.json

Same as above , Only the database is different

{
        "dbType":"mysql",
        "idleTimeout":60000,
        "initSqls":[],
        "initSqlsGetConnection":true,
        "instanceType":"READ_WRITE",
        "maxCon":1000,
        "maxConnectTimeout":3000,
        "maxRetryCount":5,
        "minCon":1,
        "name":"rwSepw",
        "password":"123456",
        "type":"JDBC",
        "url":"jdbc:mysql://192.168.10.204:3306/mydb1?useUnicode=true&serverTimezone=Asia/Shanghai&characterEncoding=UTF-8",
        "user":"root",
        "weight":0
}