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JBoss Fuse - How to setup cluster of servers in Fabric

Staying in Beijing for a technical enablement, one question I have been ask a lot is how to setup a Fabric in a cluster of servers with JBoss Fuse?

I am going to setup 2 Fuse on 2 different servers, and then join them together to form a fabric cluster.
BUT!!!! In the real world please make it at least 3 servers, as zookeeper needs more then 3 to successfully setup it's ensembles! 


First we need to create a fabric, so unzip the JBoss Fuse zip file in Server1, setup password by editing etc/user.properties.

And please do the same thing to server2. If you are testing, and tries to setup on the same machine, please remember to go to "org.apache.karaf.management.cfg" under etc/ and change the RMI related port.



also there are a few more port you need to adjust,

org.apache.karaf.shell.cfg, change the

  • sshPort

and last inside system.properties

  • org.osgi.service.http.port
  • activemq.port
  • activemq.jmx.url


Now, getting back to setting the cluster of fabric, start up JBoss Fuse by going into bin/ and execute fuse on server one. After it starts up, create a fabric by entering the following command:

fabric:create --wait-for-provisioning

This spins up a fabric on a container call root, now, start up JBoss Fuse on server2 by going to bin/ and execute fuse on server two. And instead of creating a fabric, we are going to join, by entering following command, as fabric:join [options] zookeeperUrl [containerName] .

fabric:join --zookeeper-password admin 192.168.0.1:2181 root1

To find out what the zookeeper URL, go to your fuse command line console in Server1 and type
config:edit io.fabric8.zookeeper
config:proplist

this will give you your zookeeper details

                       JBossFuse:karaf@root> config:proplist
            service.pid = io.fabric8.zookeeper
            zookeeper.password = ZKENC=YWRtaW4=
            zookeeper.url = 192.168.0.1:2181
            fabric.zookeeper.pid = io.fabric8.zookeeper

And now we have successfully created a fabric on 2 servers. If you type in container-list in the command line, you should be able to see we now have 2 working server.

JBossFuse:karaf@root> container-list 
[id]                           [version] [connected] [profiles]                                         [provision status]
root*                          1.0       true        fabric, fabric-ensemble-0000-1, jboss-fuse-full    success
root1                          1.0       true        fabric                            

And if you login to Fuse management console, under Runtime-> Containers you will see the 2 root containers on both servers


To add a new container, click on +Create on top right hand corner of the page, select the parent container so it will run on the server base on the parent container. Then choose the profile you need to install on the container.

And we are done!




Comments

Hi Christina!
Supposing my server1 (root container) goes down, what happens to the profile that I published in it?

Thanks
...or is it a good practice to publish profile on both containers?
Christina Lin said…
Actually, the profile is published to the fabric, not on a single container. so the fabric servers in the ensembles will duplicate these profiles within. So if any of them goes down, the other one will still work.
Hello , First i want to thank you for all the efforts you have done.
I followed all the steps you did on this tutorial.
i'm going to describe what i did exctely , i created a fabric on server1 after i have joined two containers (fabric:join as you did) (once at the same machine , the second from a remote pc at the same lan)
but when i executed the command "fabric:ensemble-add " to add the two containers already created to the ensemble , i had this error message "connection refused to host 192.168.56.1"
but i don't have any device runing with that ip knowing that my ip on lan have this structure 192.168.3.?
i don't why fuse had created a virtual network with that ip adress?
Christina Lin said…
When creating you fabric, try use "--manual-ip" to force setting your desire ip, so zookeeper wont go all over the place to get the IP. See if that works?
Mahran MJ said…
This comment has been removed by the author.
Mahran MJ said…
Hi Christina , Thank you for the tutorials you made , they helped me so much to learn Fuse ,
i Have a question about this tutorial , i did exactly what you did and i successfully created my Fabric Ensemble that contains 3 Fabric Server (that 2 fabric seervers at the same machine and the 3rd at a remote machine at the same lan ), until now i have no problem :)
My question is : if i want to link a profile (contains an application fuse Project web-Service) to a fabric, on which container should i link it? should i link it to one container on each fabric servers ? and what ip address should be called to invoke that webservice? what to do if one of this server goes down ?
i hope that you understand my question,Thanks

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