Thanks for explanation, this helps. On Mon, Mar 30, 2020 at 12:15 PM J.B. Langston <jblangs...@datastax.com> wrote:
> Each nodetool subcommand is defined here. > https://github.com/apache/cassandra/tree/trunk/src/java/org/apache/cassandra/tools/nodetool > > Each command will call back into the NodeProbe object (sometimes > indirectly), which makes the actual JMX calls: > https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/tools/NodeProbe.java > > Often times one nodetool command may call multiple JMX methods or read > multiple JMX properties. My general approach is to start from the command > ad follow all the method calls until I find the name of an MBean (using an > IDE can be helpful for this). > > In the case of status, it is getting the DC info from > org.apache.cassandra.db:type=EndpointSnitchInfo, which is accessed from > NodeProbe.getEndpointSnitchInfoProxy(). > > In the case of gossipinfo, it's from org.apache.cassandra.net: > type=FailureDetector. > > On Mon, Mar 30, 2020 at 1:55 PM Jai Bheemsen Rao Dhanwada < > jaibheem...@gmail.com> wrote: > >> Hello All, >> >> I am trying to find the mBean that gives information for "node tool >> gossipinfo" or "nodetool status". >> Back ground: I am trying find the available Datacenters in my Cassandra >> cluster using the JMX mBeans. >> >> Thanks in advance. >> >
