The kafka consumer group is used in reporting. For example, see consumer group lag grafana dashboard. The current random group that we use makes it difficult to know what the consumer really is. We should replace it by something more explicit.
Customize query in gerrit
We still have to ensure in some way that it is distinct from others. We could however add hostname prefix or maybe make it somehow more clear to improve logging. Maybe use hostname + timestamp + random would make it better?