Cassandra: How to get a list of processes?

Question

Hello Cassandra Experts,

How can I get a list of processes in Cassandra cluster (similiar to the show processlist command of MySQL)? Im puzzled as to why I cannot find any posts anywhere about this topic.

Thanks.

Czardas

Is there a particular problem you're trying to somve with this info? – Vital

I simple want to know what the database is doing, what types of reads, updates, loading, etc so that I can correlate this back to the apps/environment in order to troubleshoot any amiss situations. – Czardas

Hmm. I'm thinking about what this would look like on a cluster distributed over, say, a couple hundred nodes. Millions of queries taking a few millis each, and for each query communicating information about the query to some central point so that a tool can observe it. It seems like that could significantly impact performance. – Vital

I have 12 nodes. Is there any way to see the processlist? This is really a simple request in all other db platforms. – Czardas

It makes sense in other platforms. It might make sense for a distributed database, too, but the issues above make me wonder. – Vital

Distributed or not, DBAs/others need to know that the db is doing. – Czardas

Okay. How would you go about implementing it for a distributed database? – Vital