Modifying the Flow Control Mode

Constraints

• The flow control mode limits the maximum traffic speed in seconds. The actual statistical value may be lower than the flow rate because the statistical value may decrease due to network fluctuation.
• The flow control mode takes effect only in the full synchronization phase.
• After the traffic rate is modified in the incremental migration phase, the modification takes effect when the task enters the full migration phase again. For example, if the traffic rate is modified and a synchronization object is added to the task, the modification takes effect in the full synchronization phase of the task.

Prerequisites

• You have logged in to the DRS console.
• A synchronization task has been created.

Method 1

1. In the Flow Control Information area on the Basic Information tab, click Modify.
2. In the displayed dialog box, modify the settings.

Method 2

1. In the task list on the Data Synchronization Management page, locate the target task and choose More > Speed or Speed in the Operation column.
2. In the displayed dialog box, modify the settings.

Real-time Synchronization Scenarios That Support Flow Control

To the cloud

• MySQL->MySQL
• MySQL->PostgreSQL
• MySQL->GaussDB(DWS)
• DDM->MySQL
• Oracle -> GaussDB primary/standby
• Oracle -> GaussDB distributed
• Oracle->PostgreSQL
• PostgreSQL->PostgreSQL
• PostgreSQL->GaussDB(DWS)
• MariaDB->MariaDB

From the cloud

• MySQL->MySQL
• MySQL->CSS/ES
• MySQL->Kafka
• DDM->MySQL
• MariaDB->MariaDB

Self-built -> Self-built

• MySQL->CSS/ES
• Oracle -> GaussDB primary/standby
• Oracle -> GaussDB distributed