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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-20537) OffHeapColumnVector reallocation may not copy existing data
Date Sun, 30 Apr 2017 10:33:04 GMT

     [ https://issues.apache.org/jira/browse/SPARK-20537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-20537:
------------------------------------

    Assignee:     (was: Apache Spark)

> OffHeapColumnVector reallocation may not copy existing data
> -----------------------------------------------------------
>
>                 Key: SPARK-20537
>                 URL: https://issues.apache.org/jira/browse/SPARK-20537
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.1.0
>            Reporter: Kazuaki Ishizaki
>
> As SPARK-20474 revealed, reallocation in {{OnHeapColumnVector}} may copy a part of the
original storage.
> {{OffHeapColumnVector}} reallocation also copies to the new storage data up to {{elementsAppended}}.
This variable is only updated when using the ColumnVector.appendX API, while ColumnVector.putX
is more commonly used.



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