I have a 15 node cluster, 5 in each of 3 dcs. One host just recently started hanging doing any `nodetool` requests. I’ve enabled remote JMX on all these hosts and it was working fine until this week. No other changes have been made. All the Cassandra-env.sh files are the same among the nodes, and only seeds and listen_address are different for Cassandra.yaml files.
Nothing in debug log about why the Connection timed out. This is what I get running nodetool from the same host: [root@host5 conf]# nodetool status nodetool: Failed to connect to 'xx.xx.xx.xx:7199' - ConnectException: 'Connection timed out (Connection timed out)'. Any thoughts or how to log nodetool’s actions? Or see why it’s not accepting the request? Telnet to the port from localhost as well as another node work fine. Thanks, James
