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https://issues.apache.org/jira/browse/YARN-6094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15830680#comment-15830680
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Sangjin Lee commented on YARN-6094:
-----------------------------------
I went over the latest patch, and noticed one thing (sorry should have seen
them earlier).
In {{TestHBaseTimelineStorageSchema}} I see the following line has been added:
{code}
conf.setInt("hfile.format.version", 3);
{code}
What does this signify? Why is this change needed?
> Update the coprocessor to be a dynamically loaded one
> -----------------------------------------------------
>
> Key: YARN-6094
> URL: https://issues.apache.org/jira/browse/YARN-6094
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Vrushali C
> Assignee: Vrushali C
> Labels: yarn-5355-merge-blocker
> Attachments: YARN-6094.001.patch, YARN-6094-YARN-5355.001.patch,
> YARN-6094-YARN-5355.002.patch, YARN-6094-YARN-5355.003.patch,
> YARN-6094-YARN-5355.004.patch
>
>
> The timeline service v2 code base on yarn now uses hbase 1.2.4 after
> YARN-5976.
> With this version of hbase, system classes (starting with org.apache.hadoop)
> can be loaded as table level coprocessors. Hence we should update the
> timeline service coprocessor to be a dynamically loaded one instead of static
> loading.
> This involves code changes as well as documentation updates for deployment.
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