Help Center/ Data Replication Service/ FAQs/ General Operations/ Constraints and Operation Suggestions on One-to-Many Scenario
Updated on 2024-09-25 GMT+08:00
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Constraints and Operation Suggestions on One-to-Many Scenario

DRS supports one-to-many scenarios during migration or synchronization to suit your service requirements.

Operation Suggestions

  • In the one-to-many scenario, multiple DRS tasks are required. The workload on the source database is multiplied. To prevent the pressure caused by multiple DRS tasks on the same source database from affecting services on the source database, you need to analyze the load of the source database in advance. If the source database is heavily loaded, you are advised to reduce the number of synchronization tasks.
  • You are advised to create tasks one by one in the one-to-many scenario.

One-to-Many Real-Time Synchronization at the Instance Level

You need to create multiple synchronization tasks to implement one-to-many real-time synchronization. For example, to synchronize data from instance A to instances B, C, and D, you need to create three synchronization tasks.

Flowchart

When creating a task, ensure that the second task is created after the first task has entered the full phase. For details, see Overview

Figure 1 Flowchart

Parent topic: General Operations