8081 is your mx4j port, isn't it? You need to connect jconsole to JMX_PORT specified in cassandra-env.sh.
maki From iPhone On 2011/04/16, at 13:56, tinhuty he <tinh...@hotmail.com> wrote: > Maki, thanks for your reply. for the second question, I wasn't using the > loopback address, I was using the actually IP address for that server. I am > able to telnet to that IP on port 8081, but using jconsole failed. > > -----Original Message----- From: Maki Watanabe > Sent: Friday, April 15, 2011 9:43 PM > To: user@cassandra.apache.org > Cc: tinhuty he > Subject: Re: cluster IP question and Jconsole? > > 127.0.0.2 to 127.0.0.5 are valid IP addresses. Those are just alias > addresses for your loopback interface. > Verify: > % ifconfig -a > > 127.0.0.0/8 is for loopback, so you can't connect this address from > remote machines. > You may be able configure SSH port forwarding from your monitroing > host to cassandra node though I haven't try. > > maki > > 2011/4/16 tinhuty he <tinh...@hotmail.com>: >> I have followed the description here >> http://www.edwardcapriolo.com/roller/edwardcapriolo/entry/lauching_5_node_cassandra_clusters >> to created 5 instances of cassandra in one CentOS 5.5 machine. using >> nodetool shows the 5 nodes are all running fine. >> >> Note the 5 nodes are using IP 127.0.0.1 to 127.0.0.5. I understand 127.0.0.1 >> is pointing to local server, but how about 127.0.0.2 to 127.0.0.5? looks to >> me that they are not valid IP? how come all 5 nodes are working ok? >> >> Another question. I have installed MX4J in instance 127.0.0.1 on port 8081. >> I am able to connect to http://server:8081/ from the browser. However how do >> I connect using Jconsole that was installed in another windows >> machines?(since my CentOS5.5 doesn't have X installed, only SSH allowed). >> >> Thanks. >
