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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: horizon
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1441688

Title:
  [data processing] Unable to run Spark jobs

Status in OpenStack Dashboard (Horizon):
  Fix Released

Bug description:
  *high prio in my opinion*

  It is currently not possible to run a Spark job via the data
  processing UI.

  On the launch form, there are 2 fields input/output data source which
  have their default values set to (None, "None") and they are hidden on
  that form since they are not pertinent to Spark.

  I think that the new django 1.7 validation scrapes the None value and
  treats it as empty, and therefore not present and generates an error
  for those fields saying that they are required and the form submission
  is rejected.  This is not evident to the user since those fields
  remain hidden.

  I think a simple fix would be to use another value to indicate that no
  data source is the choice (which is valid for some job types).

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