jmx does this fun thing where the node you're connecting to, connects back to jconsole over a random port: http://blogs.sun.com/jmxetc/entry/connecting_through_firewall_using_jmx
On Wed, Jun 16, 2010 at 7:34 AM, <j...@javajet.com> wrote: > I am trying to set up replication among three cassandra nodes. I believe it > is because I am not setting the correct seed hostnames in storage-conf.xml. > How can I set up node communication through the NAT on firewall. > > Two nodes will be on my network with private ip 192.168.15.86 and > 192.168.15.88. Port forwarding from my router's public ip to ONE internal > node ip: 192.168.15.86. I have port forwarding to 192.168.15.86 set up for > JMX port 8088 and cassandra port 9160. > > I am using the hosts file to define the ip numbers for the cassandra nodes: > 192.168.15.86 node1_rocinante > 192.168.15.88 node2_spork > <<not shown>> node3_rackspace > > I can not seem to communicate from my internal node to the cassandra node at > rackspace over port 8088 using "nodetool" or jmx gui, although I can telnet > to both 8088 and cassandra port 9160 from shell. Here are JMX JAVA OPTS for > cassandra on my node: > -Dcom.sun.management.jmxremote.port=8088 > -Dcom.sun.management.jmxremote.ssl=false > -Dcom.sun.management.jmxremote.authenticate=false > -Djava.rmi.server.hostname=node1_rocinante > > > > Here is the netstat output showing the private ip rackspace cassandra node > 192.168.100.50 trying to handshake but failing because the nodes are > assigned my private ip numbers 192.168.15.88, 192.168.15.86. For review, > rackspace > > > tcp 0 1 192.168.100.50:39671 192.168.15.88:7000 > SYN_SENT 26725/java > tcp 0 1 192.168.100.50:39670 192.168.15.86:7000 > SYN_SENT 26725/java > > > Here are what I think are pertinent example settings in the storage-conf.xml > for an internal node: > : > > ... > <Seeds> > <Seed>node1_rocinante</Seed> > <Seed>node2_spork</Seed> > <Seed>node3_rackspace</Seed> > </Seeds> > ... > <ListenAddress>node1_rocinante</ListenAddress> > <!-- internal communications port --> > <StoragePort>7000</StoragePort> > ... > > > > > > Jeffrey Griffin, Developer > JavaJet Consulting LLC > o: 1.717.533.5557 > m: 1.717.419.2869 > skype: javajet.coder -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
