[anonymouse01]

Consul is a totally different thing to Cassandra. Consul could be built on top of Cassandra, but it would not provide any advantages. Why would you want to maintain a separate datastore?

Consul is a single static binary that uses around 11MB of RAM. Cassandra is a complex distributed datastore that requires the JVM and uses many gigabytes of RAM.

[opendais]

Why would you want to maintain a separate service discovery cluster?

[anonymouse01]

Cassandra is not a service discovery cluster...

I think you're missing the point here. I don't know what else can be explained better.