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https://issues.apache.org/jira/browse/YARN-1931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13966742#comment-13966742
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Zhijie Shen commented on YARN-1931:
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Right, we saw the same problem recently.
bq. I'm also a bit confused by this api marking. Its marked as private but it
claims to be utilities for applications.
It seems to be better to mark Apps as \@Public. MR, as an application
framework, has used it. Spark is using it, and I think there should be other
applications as well.
> YARN-1824 in 2.4 broke compatibility with previous releases
> -----------------------------------------------------------
>
> Key: YARN-1931
> URL: https://issues.apache.org/jira/browse/YARN-1931
> Project: Hadoop YARN
> Issue Type: Bug
> Components: applications
> Affects Versions: 2.4.0
> Reporter: Thomas Graves
> Priority: Blocker
>
> YARN-1824 broke compatibility with previous 2.x releases by changes the API's
> in org.apache.hadoop.yarn.util.Apps.{setEnvFromInputString,addToEnvironment}
> The old api should be added back in.
> This affects any ApplicationMasters who were using this api. It also breaks
> previously built MapReduce libraries from working with the new Yarn release
> as MR uses this api.
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