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Posted to issues@spark.apache.org by "Ankur Dave (JIRA)" <ji...@apache.org> on 2014/09/24 02:16:34 UTC

[jira] [Created] (SPARK-3671) Batch multiput updates within partitions

Ankur Dave created SPARK-3671:
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             Summary: Batch multiput updates within partitions
                 Key: SPARK-3671
                 URL: https://issues.apache.org/jira/browse/SPARK-3671
             Project: Spark
          Issue Type: Sub-task
          Components: Spark Core
            Reporter: Ankur Dave
            Assignee: Ankur Dave


Multiputs that touch the same 32-element leaf node multiple times will currently allocate and throw away a 32-element array per updated element. Instead, we should batch together all updates to the same leaf node and apply them in one step.



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