Github user liancheng commented on the pull request:
https://github.com/apache/spark/pull/11891#issuecomment-200600419
@tejasapatil Just saw your previous comment about debugging in IntelliJ.
When I have to resort to the debugger, I usually run tests using SBT and debug
with IntelliJ remote debugging feature. [This][1] is probably useful for you.
Under SBT, you may do this:
```
> project hive // or switch to any other project the target test case
belongs to
> set javaOptions in Test += <remote debugging options>
> test-only ...
...
> session clear // this clears the previously added options and disable
remote debugging
```
[1]:
https://mail-archives.apache.org/mod_mbox/spark-dev/201504.mbox/<[email protected]>
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