【Reprint】MyCat: Open Source Distributed Database Middleware

Original link: http://www.csdn.net/article/2015-07-16/2825228
1. MyCat is an open source distributed database middleware
2. The problem to be solved is: data bottleneck in the case of rapid growth of business storage and business planning The problem is to smoothly migrate the existing stand-alone database and applications to the "cloud" side at a low cost.
3. The technical principle of
"interception", which intercepts the SQL statement sent by the user, first performs some specific analysis on the SQL statement: fragmentation, routing, read-write separation, cache analysis, etc., and then sends the SQL to the real database on the backend , and handle the returned result appropriately, and finally return it to the user.