http://www.datastax.com/support-forums/topic/opscenter-cannot-listen-to-public-ip Software, Support, and Training for Apache Cassandra en-US Sat, 18 May 2013 17:57:05 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/opscenter-cannot-listen-to-public-ip#post-7541 Fri, 16 Nov 2012 23:10:26 +0000 thobbs 7541@http://www.datastax.com/support-forums/ <p>You will need to use the bindable (private) IP in <code>opscenterd.conf</code> and configure each agent to try to contact the public IP address. To do that, on each node, edit <code>address.yaml</code> (located at <code>/var/lib/opscenter-agent/conf/address.yaml</code> if installed through the OpsCenter UI or from a package) and set the following:</p> <p><code>stomp_interface: &lt;opscenterd_public_ip&gt;</code></p> <p>where <code>&lt;opscenter_public_ip&gt;</code> is the public IP address.</p> <p>I'm assuming your agents will also need to bind to a private IP address and have opscenterd contact them at a public IP address. To do that, add the following to <code>address.yaml</code>:</p> <p><code>agent_rpc_interface: &lt;private_ip_address&gt;</code><br /> <code>agent_rpc_broadcast_address: &lt;public_ip_address&gt;</code></p> <p>Hopefully that helps! Let me know if you hit any problems. </p> http://www.datastax.com/support-forums/topic/opscenter-cannot-listen-to-public-ip#post-7389 Sun, 04 Nov 2012 05:42:13 +0000 txie 7389@http://www.datastax.com/support-forums/ <p>I set up a multi-DC cassandra nodes in HP Cloud. I have 4 nodes in AZ2, 4 nodes in AZ3, and set up a opscenter in AZ2. As one thread says, the interface in /etc/opscenter/opscenterd.conf should be reachable by other nodes, since I have nodes in another DC (AZ3), I set the public IP. I saw the error in opscenter.log. Apparently, it's not a successful bind.</p> <p> twisted.internet.error.CannotListenError: Couldn't listen on 15.185.178.188:8888: [Errno 99] Cannot assign requested address.</p> <p>I also tried private IP. No agents on cassandra nodes are able to talk to it, even in the same DC. opscenter shows 0 of 8 agents found. I tried to install agents from opscenter, no luck either. </p>