Consuming messages from test1
Consumed record with key alice and value {"count":0}, and updated total count 0
Consumed record with key alice and value {"count":1}, and updated total count 1
Consumed record with key alice and value {"count":2}, and updated total count 3
Consumed record with key alice and value {"count":3}, and updated total count 6
Consumed record with key alice and value {"count":4}, and updated total count 10
Consumed record with key alice and value {"count":5}, and updated total count 15
Consumed record with key alice and value {"count":6}, and updated total count 21
Consumed record with key alice and value {"count":7}, and updated total count 28
Consumed record with key alice and value {"count":8}, and updated total count 36
Consumed record with key alice and value {"count":9}, and updated total count 45
...