Github user vanzin commented on the pull request:
https://github.com/apache/spark/pull/1801#issuecomment-51545117
This change broke backwards compatibility with existing spark-submit
commands. e.g., this used to work fine and doesn't anymore:
spark-submit myapp.jar --master yarn-client --class my.App
You have to change it to:
spark-submit --master yarn-client myapp.jar
I don't think that's acceptable. Lot's of users will be tripped by that,
especially since the error message is less than helpful.
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