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https://issues.apache.org/jira/browse/SPARK-3445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14207691#comment-14207691
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Sean Owen commented on SPARK-3445:
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I know it's a different question, but, what is holding back dropping Hadoop 1.x
support too? sounds like Yahoo is on 2.x. That too would allow some nice
simplification of shim code and API support.
> Deprecate and later remove YARN alpha support
> ---------------------------------------------
>
> Key: SPARK-3445
> URL: https://issues.apache.org/jira/browse/SPARK-3445
> Project: Spark
> Issue Type: Improvement
> Components: YARN
> Reporter: Patrick Wendell
>
> This will depend a bit on both user demand and the commitment level of
> maintainers, but I'd like to propose the following timeline for yarn-alpha
> support.
> Spark 1.2: Deprecate YARN-alpha
> Spark 1.3: Remove YARN-alpha (i.e. require YARN-stable)
> Since YARN-alpha is clearly identified as an alpha API, it seems reasonable
> to drop support for it in a minor release. However, it does depend a bit
> whether anyone uses this outside of Yahoo!, and that I'm not sure of. In the
> past this API has been used and maintained by Yahoo, but they'll be migrating
> soon to the stable API's.
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