Sometimes it helps just to test with something real. The Twitter importer lets you quickly test your new Crate instance with real data. Press the button, and watch your cluster quickly fill up in real time with live Tweets. You can always delete them later.

After authentication Twitter allows you to consume a small fraction of their public stream, hence the slow import. In a production environment you can index hundreds of thousands of records per second.

Note on yellow warning state: By default Crate tries to create a replica of your data on another machine. You might want to start a second node in the same network to see how a replica is being created automatically.