Hi, I am trying to find out if the Yarn unmanaged AM can be used in a secure cluster (Kerberized). I stumbled upon a ticket from 2012 that points to the fact that there might not be a way for the tokens to be passed to unmanaged AM yet https://issues.apache.org/jira/browse/YARN-937. However, I am aware that Llama is using the unmanaged AM and they've been able to use it in a secure cluster. Maybe this ticket is no longer in sync with the current state of the project?
Can someone with deeper understanding of Yarn internals please clear up this issue for me? Thanks!