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From jacques-n <...@git.apache.org>
Subject [GitHub] drill pull request: DRILL-4246: Fix Allocator concurrency bug and ...
Date Thu, 14 Jan 2016 04:04:38 GMT
GitHub user jacques-n opened a pull request:

    https://github.com/apache/drill/pull/323

    DRILL-4246: Fix Allocator concurrency bug and improve error detection

    - Rename the internal DrillBuf field to udle to better express its purpose.
    - Rename AllocatorManager to AllocationManager to better express its purpose.
    - Address situation where dangling ledger could be transferred into while it was being
released released by protecting association and release inside the AllocationManager.
    - Add allocator assertions to ensure allocator operations are done while the allocator
is open.
    - Simplify AllocationManager locking model.
    - Exclude HDFS reference to netty-all
    - Improve debugging messages for allocators (and fix debug message bugs)
    
    Tests pending but evaluation shows previously frequently failing flatten tests to consistently
pass.

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

    $ git pull https://github.com/jacques-n/drill DRILL-4246

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

    https://github.com/apache/drill/pull/323.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 #323
    
----
commit 4b193d71a9f3e06aadf59c66832bcbcb4b060c92
Author: Jacques Nadeau <jacques@apache.org>
Date:   2016-01-11T04:08:03Z

    DRILL-4246: Fix Allocator concurrency bug and improve error detection
    
    - Rename the internal DrillBuf field to udle to better express its purpose.
    - Rename AllocatorManager to AllocationManager to better express its purpose.
    - Address situation where dangling ledger could be transferred into while it was being
released released by protecting association and release inside the AllocationManager.
    - Add allocator assertions to ensure allocator operations are done while the allocator
is open.
    - Simplify AllocationManager locking model.
    - Exclude HDFS reference to netty-all
    - Improve debugging messages for allocators (and fix debug message bugs)

----


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