I think that JMX needs additional ports to function correctly. Try to disable all firewalls between the client and the server so that client can connect to any port in the server and try again.
- Juho Mäkinen On Mon, Aug 30, 2010 at 7:07 PM, Allan Carroll <alla...@gmail.com> wrote: > Hi, > > I'm trying to manage my cassandra cluster from a remote box and having issues > getting nodetool to connect. All the machines I'm using are running on AWS. > > Here's what happens when I try: > > /opt/apache-cassandra-0.6.4/bin/nodetool -h xxx.xxx.xxx.143 -p 10036 ring > Error connecting to remote JMX agent! > java.rmi.ConnectException: Connection refused to host: xxx.xxx.xxx.143; > nested exception is: > java.net.ConnectException: Connection timed out > > > When I'm local to a box (Ubuntu 10.04) running Cassandra, I can connect fine > via both 127.0.0.1 and external ip (xxx.xxx.xxx.143). I can telnet into the > jmx port from an external machine fine: > > telnet xxx.xxx.xxx.143 10036 > Trying xxx.xxx.xxx.143... > Connected to xxx.xxx.xxx.143. > Escape character is '^]'. > > I already added the -Djava.rmi.server.hostname parameter to the java runtime, > but it didn't seem to affect anything. > > /usr/bin/jsvc -home /usr/lib/jvm/java-6-openjdk/jre -pidfile > /var/run/cassandra.pid -errfile &1 -outfile /var/log/cassandra/output.log -cp > /usr/share/cassandra/antlr-3.1.3.jar:/usr/share/cassandra/apache-cassandra-0.6.3.jar:/usr/share/cassandra/avro-1.2.0-dev.jar:/usr/share/cassandra/clhm-production.jar:/usr/share/cassandra/commons-cli-1.1.jar:/usr/share/cassandra/commons-codec-1.2.jar:/usr/share/cassandra/commons-collections-3.2.1.jar:/usr/share/cassandra/commons-lang-2.4.jar:/usr/share/cassandra/google-collections-1.0.jar:/usr/share/cassandra/hadoop-core-0.20.1.jar:/usr/share/cassandra/high-scale-lib.jar:/usr/share/cassandra/ivy-2.1.0.jar:/usr/share/cassandra/jackson-core-asl-1.4.0.jar:/usr/share/cassandra/jackson-mapper-asl-1.4.0.jar:/usr/share/cassandra/jline-0.9.94.jar:/usr/share/cassandra/json-simple-1.1.jar:/usr/share/cassandra/libthrift-r917130.jar:/usr/share/cassandra/log4j-1.2.14.jar:/usr/share/cassandra/slf4j-api-1.5.8.jar:/usr/share/cassandra/slf4j-log4j12-1.5.8.jar:/etc/cassandra:/usr/share/java/commons-daemon.jar > -Xmx4G -Xms128M -Djava.rmi.server.hostname=xxx.xxx.xxx.143 -Dcassandra > -Dstorage-config=/etc/cassandra -Dcom.sun.management.jmxremote.port=10036 > -Dcom.sun.management.jmxremote.ssl=false > -Dcom.sun.management.jmxremote.authenticate=false > org.apache.cassandra.thrift.CassandraDaemon > > > netstat shows that I'm still bound to IP6 > > netstat -nap|grep 10036 > tcp6 0 0 :::10036 :::* LISTEN > 29277/jsvc > > > And, now I'm at an impasse. Any help would be greatly appreciated. > > Thanks > -Allan > >
