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https://issues.apache.org/jira/browse/HADOOP-10026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13789067#comment-13789067
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Steve Loughran commented on HADOOP-10026:
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I agree we don't want to stick with things forever, and as changes go this is
somewhere between the "no code changes needed" upgrade (e.g. a Junit increment)
and a "rework lots" (which we need to do for JetS3t). What I do slightly worry
about is things downstream that are using the Hadoop-supplied jackson on their
classpath -and what happens if that is moved to 2.x. If there's still a
backwards compatible mode then its less of an issue, I'd just like to get the
openstack on branch-1 work out the way first
> Upgrade to Jackson 2
> --------------------
>
> Key: HADOOP-10026
> URL: https://issues.apache.org/jira/browse/HADOOP-10026
> Project: Hadoop Common
> Issue Type: Task
> Reporter: Ben McCann
> Attachments: hadoop-tools-openstack-jackson.patch
>
>
> I'd like to see Hadoop upgrade to Jackson 2. This is a change that should be
> able to be made to each Hadoop project one at a time, so I've attached a
> patch for the first and will follow up with others if this one is committed.
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