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https://issues.apache.org/jira/browse/HADOOP-10104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14149773#comment-14149773
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Andrew Wang commented on HADOOP-10104:
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As an update, this apparently broke something in HBase: HBASE-12099. Our
internal integration testing also show issues with Hive and Crunch, not sure if
there are JIRAs for those yet.
I think this can be worked around, but this just reminds us that we need to be
*very* careful about updating our dependencies. Honestly I'm wary of any
classpath updates at all until we fix classpath isolation.
> Update jackson to 1.9.13
> ------------------------
>
> Key: HADOOP-10104
> URL: https://issues.apache.org/jira/browse/HADOOP-10104
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: build
> Affects Versions: 2.2.0, 2.3.0, 2.4.0
> Reporter: Steve Loughran
> Assignee: Akira AJISAKA
> Priority: Minor
> Fix For: 2.5.0
>
> Attachments: HADOOP-10104-003.patch, HADOOP-10104.2.patch,
> HADOOP-10104.4.patch, HADOOP-10104.patch
>
>
> Jackson is now at 1.9.13,
> [apparently|http://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-asl],
> hadoop 2.2 at 1.8.8.
> jackson isn't used that much in the code so risk from an update *should* be
> low
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