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From "Chesnay Schepler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4113) Always copy first value in ChainedAllReduceDriver
Date Fri, 24 Jun 2016 14:26:16 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348342#comment-15348342
] 

Chesnay Schepler commented on FLINK-4113:
-----------------------------------------

under which circumstances can this occur and why is it a problem?

> Always copy first value in ChainedAllReduceDriver
> -------------------------------------------------
>
>                 Key: FLINK-4113
>                 URL: https://issues.apache.org/jira/browse/FLINK-4113
>             Project: Flink
>          Issue Type: Bug
>          Components: Local Runtime
>    Affects Versions: 1.1.0, 1.0.4
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
>            Priority: Critical
>             Fix For: 1.1.0, 1.0.4
>
>
> {{ChainedAllReduceDriver.collect}} must copy the first record even when object reuse
is enabled or {{base}} may later point to the same object as {{record}}.



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