This topic describes how the scalability feature of PolarDB-X 1.0 works.
Concurrency and storage capacity scalability
The essence of scalability lies in partitioning. PolarDB-X 1.0 computing resources distribute data to multiple ApsaraDB RDS for MySQL instances by using horizontal partitioning (database sharding and table sharding) and vertical partitioning. In this way, read/write requests are concurrent and storage capacity gets distributed.
Horizontal partitioning (database sharding and table sharding)
You can use specified computing or routing rules to distribute data to multiple ApsaraDB RDS for MySQL instances. PolarDB-X 1.0 has many algorithms to deal with various scenarios.
