Github user jkbradley commented on the pull request:
https://github.com/apache/spark/pull/886#issuecomment-49104473
@manishamde Apparently MIMA is a bit fragile currently, but is being
worked on: [https://issues.apache.org/jira/browse/SPARK-2069] I added a
subtask for this specific instance to
[https://issues.apache.org/jira/browse/SPARK-2497|this JIRA] since Patrick says
it's likely the source of the bug. Will update...
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