Thanks for the response, it's good to know what's causing the problems with messages and that it's being worked on. I'll try to contact support next time I have voice issues with my group.
We love Cassandra, and hate it at the same time.
Check out this nasty bug we got. https://issues.apache.org/jira/browse/CASSANDRA-13004
It is by far the best at doing what it does
It has plenty of room for improvement
And thank you again with helping us with that bug :) we really appreciate it.
And most importantly:
It actually works at scale. Huge scale. Thousand node cluster and hundreds of thousands of instances scales.
Because a good chunk of the active maintainers actually run this shit in prod.