I'm trying to install Zeppelin using this guide - https://community.hortonworks.com/articles/34424/apache-zeppelin-on-hdp-242.html. However, when I try to add the Zeppelin service using the Ambari dashboard Ambari tries to install the service on one of my slaves, instead of the node where Spark-client is installed. How can I make Ambari install Zeppelin on the client node? ... View more

I have an HDP cluster, and I am trying to scale down some of it's nodes using cloudbreak. The specific group in question was created with 1 node, scaled up to 4 nodes, and now when I try to scale down I manage to scale the group down to 3 nodes but anything smaller than that gives me the following error - `7/25/2016 1:35:07 PM horton-cluster-multi-roles - update failed: New node(s) could not be removed to the cluster. Reason There is not enough node to downscale. Check the replication factor and the ApplicationMaster occupation.` The group host contains only the following components - node_manager, metrics_monitor. So I don't understand how replication factor is a consideration for these nodes. ... View more

I used Cloudbreak to scale up one of our node groups, which contained the know_gateway component. When I tried to scale it back down, the action failed because knox_gateway was running on these nodes. Why is it possible to upscale these nodes, but not downscale them? Is there a way around this issue? ... View more

Wanted to know if there might be a way to launch a cloudbreak cluster with several aws instance types instead of just a single one. Is there anyway to achieve this? ... View more