CODEWITHSUNDEEP
cassandra
Julias
Julias

Reputation: 5892

how to configure cassandra to listen to jmx port on real ip address and not 0.0.0.0?

I want to make cassandra to litsen to jmx on external ip and not 0.0.0.0 as it used in default. I've added the flag in cassandra-env but it still starts up on the 0.0.0.0 inteface

JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.host=172.16.40.60"

What else should I do?

Upvotes: 8

Views: 15339

Answers (2)

nickmbailey
nickmbailey

Reputation: 3684

Currently you can not configure jmx in cassandra to listen on just a single interface. This is due to it being quite hard to do in java applications in general. If you are attempting to do this for security reasons then the solution is often to block the jmx port for all interfaces except localhost and then use a tunnel to access jmx from the local node.

For the discussion on adding this feature to cassandra see:

https://issues.apache.org/jira/browse/CASSANDRA-2967

And a potential workaround:

https://blogs.oracle.com/jmxetc/entry/jmx_connecting_through_firewalls_using

Upvotes: 2

mh.
mh.

Reputation: 832

add this:

JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=172.16.40.60"

this line is from cassandra-env.sh in apache/cassandra, see here: cassandra-env.sh#L204

Upvotes: 6

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