Updated on 2025-09-10 GMT+08:00
Single Node
Huawei Cloud has discontinued the sale of DDS single node instances since July 15, 2023.
A single node instance, as its name suggests, contains only one node and that node can be accessed directly.
As a supplement to the cluster and replica set architectures, the single-node architecture is useful for R&D, SQL commissioning, and lab project testing. While not as robust as replica sets, single node architecture can be a less expensive way to visualize O&M and provide elastic scaling.
Figure 1 Single node architecture
Parent topic: System Architecture
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