I am using Cassandra 4 and have enabled SSL.

To connect to JMX, I added the following options in the cassandra-env.sh and started Cassandra

JVM_OPTS=”$JVM_OPTS -Dcom.sun.management.jmxremote.ssl=true”

JVM_OPTS=”$JVM_OPTS -Dcom.sun.management.jmxremote.registry.ssl=true

“JVM_OPTS=”$JVM_OPTS -Dcom.sun.management.jmxremote.ssl.need.client.auth=false”

JVM_OPTS=”$JVM_OPTS -Djavax.net.ssl.keyStore=/home/murali/cassandra/cassandra4.0.13/conf/certs/keystore.cass4″

JVM_OPTS=”$JVM_OPTS -Djavax.net.ssl.keyStorePassword=cassandra”

JVM_OPTS=”$JVM_OPTS -Djavax.net.ssl.trustStore=/home/murali/cassandra/cassandra4.0.13/conf/certs/cassandra4.client.truststore.jks”

JVM_OPTS=”$JVM_OPTS -Djavax.net.ssl.trustStorePassword=cassandra”

#JVM_OPTS=”$JVM_OPTS -Dcom.sun.management.jmxremote.ssl.enabled.protocols=TLSv1.2″

#JVM_OPTS=”$JVM_OPTS -Dcom.sun.management.jmxremote.ssl.enabled.cipher.suites=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256″

fi

Tried connecting with JConsole as below,

jconsole -J-Djavax.net.ssl.keyStore=certs/keystore.cass4 -J-Djavax.net.ssl.keyStorePassword=cassandra -J-Djavax.net.ssl.trustStore=certs/cassandra4.client.truststore.jks -J-Djavax.net.ssl.trustStorePassword=cassandra

But it was failed to connect with JMX SSL.

And tried to connect with java code using javax.rmi package, and it was thrown below error.

java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.NoSuchObjectException: no such object in table]

Note: used jdk 8 and 11 for jConsole and java, but error was same.

Please let us know your suggestions for successfully connecting to JMX and viewing Cassandra metrics.