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https://issues.apache.org/jira/browse/GIRAPH-1180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16681653#comment-16681653
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Dionysios Logothetis commented on GIRAPH-1180:
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Some profiles were removed in https://github.com/apache/giraph/pull/92.
> Remove support for Hadoop 1 and older
> -------------------------------------
>
> Key: GIRAPH-1180
> URL: https://issues.apache.org/jira/browse/GIRAPH-1180
> Project: Giraph
> Issue Type: Improvement
> Components: mapreduce
> Affects Versions: 1.3.0
> Reporter: Adam Kennedy
> Priority: Major
>
> Due to all the munge logic and support for nearly 10 year old APIs, Giraph
> feels much harder to maintain than it should be.
> The majority of projects in this large scale Hadoop based compute space
> maintain a much shorter compatibility window. I'm not sure if anyone is still
> running installations of Hadoop 0.20 but it doesn't seem reasonable to
> continue to support them if it adds a maintenance burden.
> Removing support for, at minimum, Hadoop versions before 1.0 would start to
> reduce the amount of munging that is needed and likely make it easier to
> maintain and contribute to the project.
> Removing support for Hadoop 1.X versions and support for legacy MapReduce 1
> might remove even more complexity.
> If there is concern about users of ancient Hadoop releases who are currently
> building from trunk and don't have the option of a production release, we
> could do this following a 1.3.0 release which could be declared as the last
> release to support Hadoop releases prior to 2.0.
>
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