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https://issues.apache.org/jira/browse/SPARK-1898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14005374#comment-14005374
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Colin Patrick McCabe commented on SPARK-1898:
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I believe an incompatible change to the private YARN API may have already
happened, since when I try to run Spark on YARN (in cluster mode) against
cdh5.0.0 it succeeds, but against a pre-release of cdh5.1.0 it does not succeed
without this patch.
> In deploy.yarn.Client, use YarnClient rather than YarnClientImpl
> ----------------------------------------------------------------
>
> Key: SPARK-1898
> URL: https://issues.apache.org/jira/browse/SPARK-1898
> Project: Spark
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Colin Patrick McCabe
>
> In {{deploy.yarn.Client}}, we should use {{YarnClient}} rather than
> {{YarnClientImpl}}. The latter is annotated as {{Private}} and {{Unstable}}
> in Hadoop, which means it could change in an incompatible way at any time.
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