drill-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From rchallapalli <...@git.apache.org>
Subject [GitHub] drill issue #822: DRILL-5457: Spill implementation for Hash Aggregate
Date Fri, 26 May 2017 16:36:16 GMT
Github user rchallapalli commented on the issue:

    And based on my initial testing, I observed that the hash-agg is only using half of the
memory allocated. Since the planner by default uses a 2-phase agg, the memory computation
logic divides the allocated memory between the 2 hash-agg operators in the plan. This is grossly
in-efficient. And every test written would need to be modified once this issue gets resolved.
Hence I would push for a fix sooner than later

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.

View raw message