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Posted to issues@spark.apache.org by "liuxian (JIRA)" <ji...@apache.org> on 2018/04/16 09:01:00 UTC
[jira] [Comment Edited] (SPARK-23989) When using
`SortShuffleWriter`, the data will be overwritten
[ https://issues.apache.org/jira/browse/SPARK-23989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16439148#comment-16439148 ]
liuxian edited comment on SPARK-23989 at 4/16/18 9:00 AM:
----------------------------------------------------------
[~joshrosen] [~cloud_fan]
was (Author: 10110346):
[~joshrosen]
> When using `SortShuffleWriter`, the data will be overwritten
> ------------------------------------------------------------
>
> Key: SPARK-23989
> URL: https://issues.apache.org/jira/browse/SPARK-23989
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: liuxian
> Priority: Critical
>
> {color:#333333}When using `SortShuffleWriter`, we only insert '{color}{color:#cc7832}AnyRef{color}{color:#333333}' into '{color}PartitionedAppendOnlyMap{color:#333333}' or '{color}PartitionedPairBuffer{color:#333333}'.{color}
> {color:#333333}For this function:{color}
> {color:#cc7832}override def {color}{color:#ffc66d}write{color}(records: {color:#4e807d}Iterator{color}[Product2[{color:#4e807d}K{color}{color:#cc7832}, {color}{color:#4e807d}V{color}]])
> the value of 'records' is `UnsafeRow`, so the value will be overwritten
> {color:#333333} {color}
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