Ambari 2.5.0.3 complains about openblas-Rblas x86_64 0.2.19-4.el7 installed when installing HDP 2.6. This was in the checks done during service installation. What version of R is HDP happy with? If we remove openblasRblas, it will also remove R 3.3.3 and we want to replace it with the correct version. ... View more

In Ambari 2.5.0.3 I noticed the following options under "Misc" when I want to specify an custom service account name: Skip group modifications Have Ambari manage UIDs Whether to skip creating users and groups in a sysprepped cluster Previously I only remember seeing "Skip group modifications", but may be the UID option was there. The last option definitely seems new to me. Anyway, is there documentation or an HCC article explaining exactly what these do and when I would want them? I can take a guess based on the names, but it would be nice to have a clear understanding. Our present need is to have service accounts and groups pre-created in AD/Centrify and I assume not defined on the local OS at all. In this case it seems like checking all three options would be safe, but option 3 seems like it might imply options 1 and 2 are selected. I would like advice on how to proceed with my current scenario, but any additional insight into what these actually do is appreciated. Thanks. Incidentally, for those that care - you can set these three options above in blueprints. See my previous question: https://community.hortonworks.com/questions/103647/how-to-use-blueprints-with-pre-created-accounts-fo.html ... View more

Is there a way to use blueprints assuming we have pre-created service accounts (created in AD/Centrify), and if so, which I could use some help. I assume that in the blueprints I could add properties something like this: "spark_user" : "svcspark", "spark_group" : "svcspark" Part 1 of this question -- Will that cause Spark to run as svcspark? Also, related to this, I noticed there are now 3 options (checkboxes) in Ambari 2.5.0.3 which may relate to pre-created accounts. These are found under Misc when adding a service: Skip group modifications Have Ambari manage UIDs Whether to skip creating users and groups in a sysprepped cluster Part 2 of this question -- Can these be set in blueprints and if so, how? Our plan is to use blueprints but we need to create all service accounts in AD/Centrify before Ambari or services are installed. Thanks ... View more