Github user kkhatua commented on the issue:
https://github.com/apache/drill/pull/1086
I think folks running unit tests can continue with the existing limits of
4GB heap+4GB Direct. The idea is to get Drill up and running for minimal use
cases, and you are expected to bump up memory to higher limits if queries get
OOM errors. Unit tests, if carrying any tests that require much more memory,
would qualify under this.
I've launched a
[fork](https://github.com/kkhatua/drill/commits/LowerMemUnitTest) of this
branch with reduced memory settings for the unit tests as well and letting
TravisCI test it out:
https://travis-ci.org/kkhatua/drill/builds/328250155
If it passes, we can either reduce those settings in the POM files as well,
or leave it intact to ensure developers doing unit tests are able to run the
tests in a reasonable amount of time.
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