Github user liancheng commented on the pull request:
https://github.com/apache/spark/pull/1686#issuecomment-50845495
Discussed with @chenghao-intel offline. In Shark, `SharkServer` does rely
on `SharkDriver`, but `SharkServer2` doesn't. In the case of Spark SQL, firstly
we don't have a service equivalent to `SharkServer`, and `HiveThriftServer2`,
which is equivalent to `SharkServer2` doesn't depend on `SparkSQLDriver`. And
`SparkSQLCLIService` doesn't crash in front of bad queries, as @scwf has
suggested.
Just added a comment related to error reporting. Otherwise LGTM. This one
is indeed cleaner than #1661. Thanks for working on this @chenghao-intel !
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