An application is a program identifier. Multiple applications can access data in the same stream. Checkpoints generated for each application are used to record the consumed data in the stream by each application.
You can create applications and view details about existing application on the DIS console.
On the Applications page, click Create App and enter an application name.
You can view the names, IDs, and creation time of the applications that access the stream.
After you click Remove All Checkpoints, all checkpoints of the application will be deleted.
When an application consumes data, the latest SN of the consumed data is recorded as a checkpoint. When the data is reconsumed, the consumption can be continued based on this checkpoint.