PolarDB - Supports Global Consistency
Mar 03 2020PolarDB
Target customers: users of microservice architectures and Software-as-a-Service (SaaS) applications and users that require cross-session consistency. This feature is not suitable for high replication latency. Features released: you can set Consistency Level in Advanced Settings for cluster endpoints to modify the consistency level used in database queries. Consistency Level supports Eventual Consistency, Session Consistency, and Global Consistency. A higher consistency level results in lower service performance. By default, Session Consistency is selected in the Read and Write mode to achieve a balance between consistency and performance. We recommend that you use this default setting. In special scenarios, for example, if you require high consistency rather than high performance, you can select the Global Consistency option.