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Does the cluster expect a "yarn" service user?

Question asked by reedv on May 16, 2018
Latest reply on May 21, 2018 by reedv

Going through the Cask documentation for installing CDAP for MapR and notice that part of the instructions involves creating a user directory for what appears to be a service user named "yarn" (Installation for MapR). Nowhere in the preceding docs for the installation is there mention of creating such a user (in fact, doing a quick google search I could only find a reference to it here: Managing queue access with ACLs - Hadoop Dev), so my question is: is this a user that should already exist across the cluster regardless of CDAP (because that is not the case for the cluster I am working on (v6.0))? If not, should I just create one and is there some special value for its uid and gid I should be aware of? Thank you.