Hello, To control the layout of components on the cluster, you would contribute your logic to the stack_advisor.py script in the stack-version which contains your service. For example NameNode placement wrt ResourceManager etc. can be seen at https://github.com/apache/ambari/blob/trunk/ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py#L1392
Depending on the type of component (Master, Slave, Client) and its cardinality, the component gets distributed in the layout by the stack-advisor. Regards, Srimanth ________________________________________ From: Mauro Cortellazzi <mauro.cortella...@radicalbit.io> Sent: Wednesday, March 09, 2016 4:12 AM To: user@ambari.apache.org Subject: disable installation of different conponents of the same service on the same node Hi all, I'm developing a custom service for Ambari. Is there a way to disable the installation of different components of the same service on the same node? For example prevent a slave component installation if a master component of the same service is already configured on a single node of the cluster? Thank you for your support. Bests. Mauro
