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 Kafka instance.
Restart Instance	Restarts a Kafka instance.
Modifying Kafka parameters	Modifies configuration parameters of Kafka. Enables/Disables automatic topic creation.
Change capacity threshold policy	Changes capacity threshold policies for a Kafka instance.
Enabling or disabling SSL	Switches between plaintext and ciphertext access.
Configure public network access	Enables/Disables public access.
Modify Specifications	Expands the storage space. Adds brokers. Increases the bandwidth. Increases the broker flavor.
Kafka partition reassignment	Reassigns partitions of a topic.
Configure topic permission	Grants permissions to users in a topic.

Procedure

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

Select the region where your Kafka instance is located.
Click Service List and choose Application > Distributed Message Service. The Kafka instance list is displayed.
Click a Kafka instance to go to the Basic Information page.
In the navigation pane, choose Background Tasks.
On the Background tasks or Scheduled tasks tab page, click the time drop-down box, specify time, enter keywords in the search box, and press Enter. Tasks started in the specified time will be displayed.
On the Background Tasks page, you can also perform the following operations:
- Click to refresh the task status.
- Click Delete. In the displayed Delete Task dialog box, click OK to clear the task information.
  You can delete a task only when it is in either of the following situations:
  
  The task is complete, which can be Successful or Failed.
  The task is Canceled.

Viewing Kafka Background Tasks

Procedure