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

When trying to create a new cluster using cloudbreak I receive the following error - /cbreak_cloudbreak_1 | 2016-07-19 09:13:12,892 [reactorDispatcher-76] accept:38 INFO c.s.c.s.e.CloudbreakEventHandler - [owner:undefined] [type:CLOUDBREAKEVENTDATA] [id:undefined] [name:undefined] Sending notification with data: CloudbreakEvent{id=58, eventType='CREATE_FAILED', eventTimestamp=Tue Jul 19 09:13:12 UTC 2016, eventMessage='Ambari cluster could not be created. Reason: Ambari Blueprint could not be added: The component 'ZEPPELIN_MASTER' in host group 'host_group_master_2' is not valid for the specified stack', owner='1edf665b-681b-479d-8cb7-fcf21246846b', account='seq1234567', cloud='AWS', region='us-east-1', blueprintName='hdp-spark-cluster', instanceGroup='null', blueprintId=6', stackId=4', clusterId=4', clusterName=horton-cluster} If I delete Zeppelin from the blueprint the cluster launches just fine. Is there any way to resolve this? ... View more

We have launched a cluster using cloudbreak on AWS, using one of the default templates that come with cloudbreak (minviable-aws) My question is - After the cluster was launched, is there anyway to vertically scale the nodes running on the server? Let's say the template is configured to run m3.large instances, and now I want to add m4.xlarge instances to the cluster (using cloudbreak), is that possible in any way? ... View more