Hi All, I have written a custom service and i am able to run it successfully using Ambari. But now want to understand about How do i go about upgrade it? Does Ambari provide some support to do this OR i have to write some custom command to do that OR i need to do it manually? Is the RPM package recommended practice for Ambari custom components in this case? Also in the source code i saw that there is a support for hooks. How do i implement hooks? How to get existing services configurations(e.g. HDFS, YARN), installation homes to define classpath? Do i have to use the REST services? Thanks & Regards, Abhijit ... View more