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From guowei2 <>
Subject [GitHub] spark pull request: [SPARK-2873] [SQL] using ExternalAppendOnlyMap...
Date Tue, 19 Aug 2014 06:14:02 GMT
GitHub user guowei2 opened a pull request:

    [SPARK-2873] [SQL] using ExternalAppendOnlyMap to resolve OOM when aggregating

    A new PR clone from PR 1822
    Fix numbers of problems
    Reuse the CompactBuffer from Spark Core to save memory and pointer dereferences as PR
    Hive UDAF not support external aggregate, for hive AggregationBuffer need  serializable
and hive GenericUDAFEvaluator has no method implement to merge two evaluators

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

    $ git pull sql-memory-patch

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

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2029
commit 5cbaaac088346077bcc27229073a5fd3de8eb3a3
Author: guowei2 <>
Date:   2014-08-19T02:51:29Z

    merge PR 1822


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