Hi Jaikiran,
maybe this would help. I use Kafka inside VirtualBox, with no DNS and
potentially changing IP when guest is started.
So, in my Kafka startup script that runs on boot, I just replace the
advertised.host.name with the current external IP (it runs after network is
up):
sed -i "/^advertised.host.name/c\advertised.host.name=`hostname -I`"
$KAFKA_HOME/config/server.properties
nohup kafka-server-start.sh $KAFKA_HOME/config/server.properties
>/dev/null
Does that work for you?
Ofir Manor
Co-Founder & CTO | Equalum
Mobile: +972-54-7801286 | Email: ofir.ma...@equalum.io
On Wed, Jan 20, 2016 at 3:20 PM, Jaikiran Pai <jai.forums2...@gmail.com>
wrote:
> We are using Kafka 0.9.0 on our dev setups. We see that the Kafka
> configurations currently expose a way to configure the host.name and/or
> advertised.host.name which state:
>
> # Hostname the broker will bind to. If not set, the server will bind to
> all interfaces
> #host.name=
>
> # Hostname the broker will advertise to producers and consumers. If not
> set, it uses the
> # value for "host.name" if configured. Otherwise, it will use the value
> returned from
> # java.net.InetAddress.getCanonicalHostName().
> #advertised.host.name=<hostname routable by clients>
>
> The problem for us is that for our system where we use Kafka, we don't use
> a DNS server and the IP allocation/assignment to the machine is via DHCP.
> As a result we don't have a set DNS name nor know the IP address before
> hand. However, we do know the network interface name to which we want the
> Kafka server to be using. Would it be possible add a feature where the
> config property could expose something like a advertised.host.interface
> which takes the name of the network interface which the Kafka server will
> use? Internally the implementation could then use any of the IP addresses
> returned by
> http://docs.oracle.com/javase/7/docs/api/java/net/NetworkInterface.html#getInterfaceAddresses%28%29
> after looking up the NetworkInterface by name
> http://docs.oracle.com/javase/7/docs/api/java/net/NetworkInterface.html#getByName%28java.lang.String%29
>
>
>
> Is this something that could be added as an enhancement?
>
> -Jaikiran
>
>
