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https://issues.apache.org/jira/browse/FLINK-4113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347023#comment-15347023
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ASF GitHub Bot commented on FLINK-4113:
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GitHub user greghogan opened a pull request:
https://github.com/apache/flink/pull/2156
[FLINK-4113] [runtime] Always copy first value in ChainedAllReduceDriver
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/greghogan/flink
4113_always_copy_first_value_in_chainedallreducedriver
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2156.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2156
----
commit f5f162b591b38e890758dc65fee93749ac86a347
Author: Greg Hogan <c...@greghogan.com>
Date: 2016-06-23T16:37:37Z
[FLINK-4113] [runtime] Always copy first value in ChainedAllReduceDriver
----
> 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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