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https://issues.apache.org/jira/browse/HDFS-6267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13976331#comment-13976331
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Andrew Wang commented on HDFS-6267:
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Hey [~azuryy]! Thanks for putting in the work here, but unfortunately you've
stepped into a very touchy subject :)
If you look on common-dev, there was a big thread about updating for JDK7, and
Jetty is related to that. The consensus was that we can't do this in branch-2
at least because of compatibility concerns unless we shade our internal
dependencies. It'd be technically fine to do this in trunk for 3.0 (like this
JIRA's affects version indicates), but I personally am against divergence
between trunk and branch-2 until there's a clear plan for releasing a Hadoop
3.0. Other developers also feel this way.
This is also a change that would need a lot of testing, since Jetty is used in
a lot of places in Hadoop.
> Upgrade Jetty6 to Jetty9
> ------------------------
>
> Key: HDFS-6267
> URL: https://issues.apache.org/jira/browse/HDFS-6267
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode, namenode
> Affects Versions: 3.0.0
> Reporter: Fengdong Yu
> Assignee: Fengdong Yu
> Priority: Minor
> Attachments: HDFS-6267.patch
>
>
> Jetty stable version is 9.x, but it requires Java7, so I want to target 3.0
> for this upgrade.
> Jetty9 is incompatible with Jetty6, so the patch will be big.
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