Hi Roger, That's exactly what I need in my end, and actually internally created a new property called zkHost.name to publish a different host to zk. This is also needed for deploying Kafka into Azure.
I also created zkHost.port since the internal and external ports that's exposed might be different as well. Tim On Thu, Oct 17, 2013 at 3:13 PM, Roger Hoover <roger.hoo...@gmail.com>wrote: > Hi all, > > I'm getting started experimenting with Kafka and ran into a configuration > issue. > > Currently, in server.properties, you can configure host.name which gets > used for two purposes: 1) to bind the socket 2) to publish the broker > details to ZK for clients to use. > > There are times when these two settings need to be different. Here's an > example. I want to setup Kafka brokers on OpenStack virtual machines in a > private cloud but I need producers to connect from elsewhere on the > internal corporate network. With OpenStack, the virtual machines are only > exposed to DHCP addresses (typically RFC 1918 private addresses). You can > assign "floating ips" to a virtual machine but it's forwarded using Network > Address Translation and not exposed directly to the VM. Also, there's > typically no DNS to provide hostname lookup. Hosts have names like > "fubar.novalocal" that are not externally routable. > > Here's what I want. I want the broker to bind to the VM's private network > IP but I want it to publish it's floating IP to ZooKeeper so that producers > can publish to it. > > I propose a new optional parameter, "listen", which would allow you to > specify the socket address to listen on. If not set, the parameter would > default to host.name, which is the current behavior. > > #Publish the externally routable IP in ZK > host.name = <floating ip> > #Accept connections from any interface the VM knows about > listen = * > > I'm assuming others will eventually have the same requirement so I've added > a JIRA ticket. > > https://issues.apache.org/jira/browse/KAFKA-1092 > > Thanks for your consideration. > > Cheers, > > Roger >
