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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5071) address HBase compatibility issues with trunk
Date Tue, 10 May 2016 20:07:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-5071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15278772#comment-15278772
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Sangjin Lee commented on YARN-5071:
-----------------------------------

There may be more incompatible changes coming along in the trunk in the future. The motivation
for this JIRA is to see what we can do to safeguard ourselves on our end, given the special
dependency on HBase.

Also, it would be GREAT if some of the changes you can do to make HBase work against the trunk
can be made into the 1.2.x line. Thanks!

> address HBase compatibility issues with trunk
> ---------------------------------------------
>
>                 Key: YARN-5071
>                 URL: https://issues.apache.org/jira/browse/YARN-5071
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>            Priority: Critical
>
> The trunk is now adding or planning to add more and more backward-incompatible changes.
Some examples include
> - remove v.1 metrics classes (HADOOP-12504)
> - update jersey version (HADOOP-9613)
> - target java 8 by default (HADOOP-11858)
> This poses big challenges for the timeline service v.2 as we have a dependency on hbase
which depends on an older version of hadoop.
> We need to find a way to solve/contain/manage these risks before it is too late.



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