Github user rekhajoshm commented on the pull request:
https://github.com/apache/spark/pull/7602#issuecomment-129675694
Hi @srowen @andrewor14.This time also attaching the screenshot of manual
testing done for dotfile of DAG visualization on this branch.Also added a test
for dot file DAG representation.
Please review, hoping to get your approvals on merge. thanks!

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