[
https://issues.apache.org/jira/browse/ARROW-2594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated ARROW-2594:
----------------------------------
Labels: pull-request-available (was: )
> Vector reallocation does not properly clear reused buffers
> ----------------------------------------------------------
>
> Key: ARROW-2594
> URL: https://issues.apache.org/jira/browse/ARROW-2594
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java - Vectors
> Reporter: Bryan Cutler
> Assignee: Bryan Cutler
> Priority: Critical
> Labels: pull-request-available
>
> When reallocating a vector buffer, it assumes that the first half of the new
> buffer was clean or populated from the previous and only zeros out the second
> half. This is not the case if the vector has released the buffer and the
> current capacity is 0 (empty). If the new buffer has values set, then they
> will cause bogus values when used in the vector.
> I came across this when looking into SPARK-23030, due to the comment here
> https://github.com/apache/spark/pull/21312#issuecomment-389035697
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
