Viewing Background Tasks of a RocketMQ Instance

After you initiate certain instance operations listed in Table 1, a background task will start for each operation. On the console, you can view the background task status and clear task information by deleting task records.

**Table 1** Backend task list
Task Name	Description
Creating an Instance	Creates a RocketMQ instance.
Restart Instance	Restarts a RocketMQ instance.
Changing SSL setting	Changes the SSL configuration.
Enable public access	Enables Public Access.
Disable public access	Disable Public Access.
Modify Specifications	Expands the storage space. Adds brokers. Increases the broker flavor. Increases the instance flavor.
Deleting ConsumerGroup in Batches	Deletes multiple consumer groups in batches.
Deleting Topics in Batches	Deletes multiple topics in batches.
Restart Broker	Restarts brokers.
Metadata Migration	Migrates metadata.

Prerequisite

A RocketMQ instance has been purchased.

Procedure

Log in to the console.
Click in the upper left corner to select a region.

DMS for RocketMQ instances in different regions cannot communicate with each other over an intranet. Select a nearest location for low latency and fast access.
Click and choose Middleware > Distributed Message Service for RocketMQ to open the console of DMS for RocketMQ.
Click a RocketMQ instance to go to the instance details page.
In the navigation pane, choose Instance > Background Tasks.
On the Current Tasks or Scheduled Tasks tab page, specify a time range in the upper left corner. The task information in that time range will be displayed.
On the Background Tasks page, you can also do as follows:
- Query specific RocketMQ instances by filtering. Current filters include the task name, username, status, and other information.
- Click to refresh the task status.
- Click Delete. In the displayed Delete Task dialog box, click OK to clear the task information.
  Select tasks and click Delete in the upper right corner to delete them in batches.
  
  The deletion is allowed when the task is in the Successful, Canceled, or Failed state.