The DDS product provides different configuration change services for products of different specifications, such as changing storage space configuration and backup space configuration. For details, see the following table.
Category | Single-node specification | Sharded cluster specification | Replica set specification |
Expanding storage space | Support | Support | Support |
Expanding backup space | Support | Support | Support |
Expanding node specification | Support | Support | Support |
Scale out | Not supported | Support (max. 7 nodes) | Support |
Expanding read-only slave node | Not supported | Not supported | Not supported |
Increasing the number of Mongos | Not supported | Not supported | Support (max. 16 nodes) |
Increasing the number of Shards | Not supported | Not supported | Support (max. 16 nodes) |