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https://issues.apache.org/jira/browse/HADOOP-13662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15525562#comment-15525562
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Steve Loughran commented on HADOOP-13662:
-----------------------------------------



Jackson is [one of the JARs we are most scared 
of|http://steveloughran.blogspot.co.uk/2016/05/fear-of-dependencies.html]. 
amazon-aws depends on jackson too, so a full hadoop-aws test run is going to 
have to be a (manual) part of the patch test.

The last update broke HBase —has this version update been discussed there? Is 
there a JIRA it can be linked to?

it may also needs collaboration with Spark, who are already on a 2.4.x version, 
and Flink.

* Also, see comments on HADOOP-13569 about field settings & links to 
HADOOP-9991 . 

...actually, looking at HADOOP-9991 there's already an open JIRA on upgrading 
Jackson; closing this as a duplicate & awaiting your patch there. As all 
dependency updates should be linked to that, it's the place to check to see if 
there are already outstanding JIRAs on a specific JAR.

> Upgrade jackson2 version
> ------------------------
>
>                 Key: HADOOP-13662
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13662
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Sean Mackrory
>            Assignee: Sean Mackrory
>         Attachments: HADOOP-13662.001.patch
>
>
> We're currently pulling in version 2.2.3 - I think we should upgrade to the 
> latest 2.8.3.



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