tree ebb0442ed3a2b5a8b230f2915ddd80f1bcc4ccc5
parent eb08d0404e91031c7cbcc20c39dfc07e12e3fb5a
author Paul Rogers <par0328@yahoo.com> 1585853112 -0700
committer Arina Ielchiieva <arina.yelchiyeva@gmail.com> 1586611738 +0300

DRILL-7675: Work around for partitions sender memory use

Adds an ad-hoc system/session option to limit partition sender
memory use. See DRILL-7686 for the underlying issue.

Also includes code cleanup and diagnostic tools.

closes #2047