Riak Cluster Using Docker Compose

Riak is some hot stuff lately with the increasing need for clusterzitation in the world of NoSQL data stores .

Riak is a solution to big data problem, it was based on Amazon Dynamo design, to respond to request at a very large scale,

Basho introduced Riak as fault tolerant, simple, scalable, high availability friendly .

it’s fairly easy to create/add nodes with riak-admin to a riak cluster, but if this is combined with docker-compose capabilities it will give you the possibility to have an easily deployable/scalable cluster of riak nodes.

I created a docker-compose yaml to specify all the components of the cluster, basically a seed and a set of nodes

I used  Hectcastro Riak docker image, because :  that’s the beauty of containers, they are reusable !

$git clone https://github.com/mbenachour/riak-cluster-compose.git
$cd riak-cluster-compose

 

  • start compose as a daemon :
$docker-compose up -d
  • you will have one seed and one node running :

Screen Shot 2015-12-15 at 5.00.52 PM

  • list all running containers

Screen Shot 2015-12-15 at 5.02.33 PM

  • let’s create an “Artists” buckets and add an object using node1 (port : 32812)
$curl -i -d '{"name":"Bruce"}' -H "Content-Type: application/json" \
localhost:32812/riak/artists/Bruce
  • check the bucket was created :

Screen Shot 2015-12-15 at 5.30.05 PM

Scale time ! : 

  • to scale you cluster you can add 3 nodes
    $docker scale riak_node=4

Screen Shot 2015-12-15 at 5.32.32 PM

  •  let’s query node4 for the list of buckets (port: 32818)

Screen Shot 2015-12-15 at 5.36.08 PM

works !

if you are more interested to scale on multiple hosts, you can combine this with docker swarm.

 

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