Metrics are exposed via JMX. You can use something like jmxtrans or collectd with the jmx plugin to capture metrics per-node and route them to whatever you use to aggregate metrics.
From: Fred Habash <fmhab...@gmail.com> Reply-To: "user@cassandra.apache.org" <user@cassandra.apache.org> Date: Thursday, December 12, 2019 at 9:38 AM To: "user@cassandra.apache.org" <user@cassandra.apache.org> Subject: Measuring Cassandra Metrics at a Sessions/Connection Levels Message from External Sender Hi all ... We are facing a scenario where we have to measure for some metrics on a per connection or client basis. For example. count of read/write request by client IP/host/user/program. We want to know the source of C* requests for budgeting, capacity planing, or charge-backs. We are running 2.2.8. I did some research and I just wanted to verify my findings ... 1. C* 4+ has two instruments 'nodetool clientstats' & system_view.clinets 2. Earlier release have no native instruments to collect these metrics Is there any other way to measure such metrics? ---------------------------------------- Thank you
