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During the initial testing process, the project originally used kingshard as the middleware, but during the testing process, we found that the join does not support different sub-tables, so we can only choose to give up and change to mycat to do the testing Download address is [root@gzsd-ks01-101110214 download]# wget http://dl.mycat.i ...

In a real project, Mycat services also need to consider high availability. If the server Mycat is on is down, or if the Mycat service fails, it needs a standby machine to provide services and the Mycat cluster needs to be considered.Highly available options:We can use HAProxy+Keepalived with two Mycats to build Mycat clusters for high availabi ...

Machine information Machine IP Installation services Exposed port 192.168.177.128 mycat service External exposure port 8066 192.168.177.131 mysql1 External exposure port 3306 192.168.177.132 mysql2 External exposure port 3306 1. Install mycat 1.1 download the installation package (it is r ...

1. MySQL Read-Write Separation Concept The principle of MYSQL read-write separation is to let Master database handle transactional add, delete, modify, update operations (create, insert, update, delete) and Slave database handle query operations (select). MySQL read-write separation is based on MySQL master-slave replication, which can guarant ...

In the local time mode, the policy ID automatically generated by ID= 64 bit binary (42 (MS) + 5 (machine ID) + 5 (business code) + 12 (repeated accumulation). The local time stamp mode is mycat's default, so when you configure it, you need to confirm whether the sequnceHandlerType configuration in your server.xml is 2. To realize the local ...

Previously, we have talked about how to judge the sql type by Mycat, and then handle it differently for different types of sql [Mycat principle analysis - SQL statement processing] , let's take a look at the DDL statement and how Mycat handles it. In combination with the code in ServerParse.java, let's take a look at t ...

I. MyCat Basic Concepts 1. What is MyCat A thoroughly open source, large database cluster for enterprise application developmentTransaction enabled, ACID enabled, enhanced database that can replace MySQLAn enterprise database that can be considered a MySQL cluster to replace the expensive Oracle clusterA new type of SQL Server which combines ...

Mycat currently does not fully support versions of MySQL 8 or above, which may cause problems such as incorrect passwords when Mycat connects to MySQL 8 because the new version does not encrypt the password the same way as the old version.There is also the time zone issue, and the new version of the connection requires additional time zone par ...

The master-slave configuration of mysql follows the configuration of the previous blog: https://www.cnblogs.com/MasterSword/p/9434169.html MYCAT download address: http://www.mycat.io/ Trial version: Mycat-server-1.6-release # cd /usr/local # mv ~/Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz /usr/local # tar -zxvf Mycat-server-1.6-RELEA ...

Echo editor, welcome to reprint, reprint please state the source of the article. Welcome to add echo wechat (wechat: t2421499075) for communication and learning Never lose in a hundred battles, never claim to win, never lose in a hundred defeats, and strive to move forward. ——This is really powerful!!! After the installation, we h ...