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https://issues.apache.org/jira/browse/CRUNCH-235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White updated CRUNCH-235:
-----------------------------
Attachment: CRUNCH-235.patch
This patch deprecates and provides alternatives for public methods that expose
Counter.
> Avoid exposing incompatible Hadoop classes in Crunch API
> --------------------------------------------------------
>
> Key: CRUNCH-235
> URL: https://issues.apache.org/jira/browse/CRUNCH-235
> Project: Crunch
> Issue Type: Improvement
> Components: Core
> Reporter: Tom White
> Assignee: Tom White
> Attachments: CRUNCH-235.patch
>
>
> Between Hadoop 1 and 2, org.apache.hadoop.mapreduce.Counter changed from a
> class to an interface. Therefore, exposing Counter in Crunch's API means that
> Crunch programs may need to be recompiled when moving from a Hadoop 1 to a
> Hadoop 2 cluster. It would be nice to avoid the need to recompile.
> Note that Crunch itself has two artifacts - one for each major version of
> Hadoop - and the change proposed here would not alter that, it would just
> mean that the same Crunch program binary could be used with either Crunch
> artifact.
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