GitHub user jacques-n opened a pull request:
https://github.com/apache/drill/pull/283
DRILL-4144: Allocator updates
Includes the updates provided by the original DRILL-1942 patch along with a
number of improvements to better clarify ownership and transfer semantics as
well as to avoid contention issues.
A doc is included (in addition to extension javadocs). You can see the doc
here:
https://github.com/jacques-n/drill/blob/DRILL-4144/exec/memory/base/src/main/java/org/apache/drill/exec/memory/README.md
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jacques-n/drill DRILL-4144
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/283.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #283
----
commit 04da30cfd0c37f6289b4ef5a7517c43828845ef5
Author: Chris Westin <cwes...@yahoo.com>
Date: 2015-11-11T22:57:16Z
DRILL-4144: Clean up close behaviors.
commit 881284281d1f22db994cde42b876a57882377144
Author: Chris Westin <cwes...@yahoo.com>
Date: 2015-11-11T22:57:47Z
DRILL-4144: Add new allocator
commit 14f5b4dbb94a18b9c697560f37e2d2cb666d5f30
Author: Jacques Nadeau <jacq...@apache.org>
Date: 2015-11-16T01:26:02Z
DRILL-4144: Allocator Improvements
- make Allocator mostly lockless
- change BaseAllocator maps to direct references
- add documentation around memory management model
- move transfer and ownership methods to DrillBuf
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