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Date: Sat, 10 Jun 2017 05:37:19 +0000 (UTC)
From: "Sean Busbey (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-14284) Shade Guava everywhere
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archived-at: Sat, 10 Jun 2017 05:37:28 -0000


    [ https://issues.apache.org/jira/browse/HADOOP-14284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045402#comment-16045402 ] 

Sean Busbey commented on HADOOP-14284:
--------------------------------------

One gap that I'm not certain has a jira is that there isn't an IT that runs a MR job on the YARN minicluster provided by the shaded version of the minicluster jar.

> Shade Guava everywhere
> ----------------------
>
>                 Key: HADOOP-14284
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14284
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 3.0.0-alpha4
>            Reporter: Andrew Wang
>            Assignee: Tsuyoshi Ozawa
>            Priority: Blocker
>         Attachments: HADOOP-14238.pre001.patch, HADOOP-14284.002.patch, HADOOP-14284.004.patch, HADOOP-14284.007.patch, HADOOP-14284.010.patch, HADOOP-14284.012.patch
>
>
> HADOOP-10101 upgraded the guava version for 3.x to 21.
> Guava is broadly used by Java projects that consume our artifacts. Unfortunately, these projects also consume our private artifacts like {{hadoop-hdfs}}. They also are unlikely on the new shaded client introduced by HADOOP-11804, currently only available in 3.0.0-alpha2.
> We should shade Guava everywhere to proactively avoid breaking downstreams. This isn't a requirement for all dependency upgrades, but it's necessary for known-bad dependencies like Guava.


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