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From jacques-n <...@git.apache.org>
Subject [GitHub] drill pull request: DRILL-4142: Query/Node memory maximums
Date Mon, 30 Nov 2015 05:32:39 GMT
GitHub user jacques-n opened a pull request:

    https://github.com/apache/drill/pull/284

    DRILL-4142: Query/Node memory maximums

    Simple query allocator design. Can be enhanced via better workload management flow.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jacques-n/drill DRILL-4142

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/drill/pull/284.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 #284
    
----
commit 04da30cfd0c37f6289b4ef5a7517c43828845ef5
Author: Chris Westin <cwestin@yahoo.com>
Date:   2015-11-11T22:57:16Z

    DRILL-4144: Clean up close behaviors.

commit 881284281d1f22db994cde42b876a57882377144
Author: Chris Westin <cwestin@yahoo.com>
Date:   2015-11-11T22:57:47Z

    DRILL-4144: Add new allocator

commit 14f5b4dbb94a18b9c697560f37e2d2cb666d5f30
Author: Jacques Nadeau <jacques@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

commit 177cc9ed13d4c28e747caed1f7686ac759e68b1f
Author: Jacques Nadeau <jacques@apache.org>
Date:   2015-11-27T18:26:07Z

    Improve debug messaging.
    Fix issue where we were under reference-counting
    Update accountant to avoid reservation limit failure incorrect accounting.

commit 736a10d2a37903f7afcae23a962a94dac6e5f377
Author: Jacques Nadeau <jacques@apache.org>
Date:   2015-11-27T18:52:08Z

    Fix/revert sort changes

commit 265cbc55117c8bd98497ce5a5fdc0b46926a8d37
Author: Jacques Nadeau <jacques@apache.org>
Date:   2015-11-27T18:54:31Z

    Update DrillBuf check to avoid generating verbose string unless required.

commit 160cd963ce07b2633f93f07e39937f0a3c0fac55
Author: Jacques Nadeau <jacques@apache.org>
Date:   2015-11-30T05:29:50Z

    DRILL-4142: Implement basic query level memory maximums.
    
    - Add new AllocatorDecorator helper class.
    - Update BaseAllocator/BufferAllocator to support unwrap(Class<T>) functionality
    - Create a new QueryAllocator that survives as long as at least one fragment allocator
exists.
    - Expose synchronized QueryAllocator creation per node via the WorkEventBus
    - Expose a new SYSTEM-only option: "exec.memory.max.per_query_per_node.mb" with a default
of 1TB.

----


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