Github user shaneknapp commented on the issue: https://github.com/apache/spark/pull/21584 just wanted to briefly chime in: TL;DR: this build will fail until the PRB is running on our ubuntu build nodes. we are currently blocked from testing this stuff w/the current iteration of the PRB on our jenkins for a couple of reasons: 1) the current pull request builder runs only on our old, ancient and crufty centos 6.9 hosts 2) these hosts have old, ancient and crufty installations of R (3.1.1) and associated libraries 3) trying to re-create (2) on our shiny, new ubuntu 16.04 boxen has, so far, been an exercise in futility. :\ 4) this is why we currently have a limited number of ubuntu boxes, and also why things like testing for spark/k8s integration requires an addition build *on top* of the standard PRB build to make things work. i'm working now w/some folks at databricks (@weshsiao) to get this under control enough so that we can get things moving to the ubuntu hosts ASAP.
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