How to Enable Prometheus Mode in Apache Cassandra This article explains how to configure Apache Cassandra to expose metrics in Prometheus format using JMX Exporter. Once configured, Applications Manager can collect Cassandra metrics using Prometheus ...
Reason: It is because, by default, 'Discover all nodes in the cluster' option is enabled. If you want to monitor only particular instance, disable that option and add the monitor.
Solution: Applications Manager connects to Apache Cassandra via JMX. The "Unable to connect" error typically indicates that the Cassandra JMX port (default: 7199) is unreachable from the Applications Manager server, is bound incorrectly, or requires ...