Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/1253#issuecomment-49536672
Hey @sryza - I did a straw poll offline discussing this with a few other
contributors. The consensus was that it might be better to have a `--conf` flag
with an `=` sign instead of representing spark conf properties directly as
flags.
I.e. `--conf spark.app.name=blah`
On admittedly bad thing about this approach is that if users have arguments
with spaces in them, they will have to quote the entire thing:
```
./bin/spark-submit --conf "spark.app.name=My app"
```
Which might not be intuitive, so it would be good to document that
(provided you are generally okay with this proposed syntax).
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