The Apache HTTP Server, colloquially called Apache, is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0. Apache is developed and maintained by an open community of developers under the auspices of the Apache Software Foundation.
Whenever you're installing a new DataStaxApache Cassandra cluster, you need to remember to remove the user cassandra. We've seen this at a couple of customer installations now. If you do not change the user cassandra or at least alter the roles for the user cassandra....