Help Center/ Distributed Database Middleware/ User Guide (Ally Region)/ Service Overview/ Use Constraints/ Data Nodes
Updated on 2026-01-26 GMT+08:00
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Data Nodes

Constraints on data nodes are as follows:

  • DDM can work with only RDS for MySQL 5.7 and 8.0 instances.
  • DDM does not support SSL for MySQL instances.
  • Do not enable case sensitivity support for MySQL instances.
    • Select Case insensitive for Table Name when you create an instance.
  • When you modify configurations of a MySQL instance associated with DDM, an exception may occur. After the modification, click Synchronize Data Node Information on the Data Nodes page to synchronize changes from the data node to DDM.
  • Do not use character set GBK for data nodes.
Parent topic: Use Constraints