Rename from the UI
1. Click the Settings button next to the app.
2. Edit the application name
Note that this just changes the 'label' for the application in the DripStat UI.
In you Config File, you will still need to continue using whatever name you were using before.
Rename from Config File
This is usually used when you when you want to discard old data.
Since DripStat considers the name in your Config File as an id, changing it in the Config file would create a new Application in DripStat.
If there are multiple JVMs in a cluster that are reporting data to the same application, you will have to edit the Config file of each JVM with the new name.