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https://issues.apache.org/jira/browse/YARN-5667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15549768#comment-15549768
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Vrushali C commented on YARN-5667:
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Thanks [~haibochen], I took a quick look and it seems to be good. It does not
look like you have updated the hbase version in this patch, right? Since you
had mentioned you wanted to build with hbase 2.0. Am I correct in thinking you
tested this with hbase 1.1.3?
Also, there are a lot of files moved around, so wanted to confirm, the classes
being moved are the ones primarily under
hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/.
If possible, could you share a listing of what remains in the
hadoop-yarn-server-timelineservice/src/main?
Also, did you enable the coprocessor on your pseudo cluster during your checks?
Did you recollect the counters aggregated to the flow level?
> Move HBase backend code in ATS v2 into its separate module
> -----------------------------------------------------------
>
> Key: YARN-5667
> URL: https://issues.apache.org/jira/browse/YARN-5667
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Attachments: part1.yarn5667.prelim.patch,
> part2.yarn5667.prelim.patch, part3.yarn5667.prelim.patch,
> part4.yarn5667.prelim.patch, part5.yarn5667.prelim.patch
>
>
> The HBase backend code currently lives along with the core ATS v2 code in
> hadoop-yarn-server-timelineservice module. Because Resource Manager depends
> on hadoop-yarn-server-timelineservice, an unnecessary dependency of the RM
> module on HBase modules is introduced (HBase backend is pluggable, so we do
> not need to directly pull in HBase jars).
> In our internal effort to try ATS v2 with HBase 2.0 which depends on Hadoop
> 3, we encountered a circular dependency during our builds between HBase2.0
> and Hadoop3 artifacts.
> {code}
> hadoop-mapreduce-client-common, hadoop-yarn-client,
> hadoop-yarn-server-resourcemanager, hadoop-yarn-server-timelineservice,
> hbase-server, hbase-prefix-tree, hbase-hadoop2-compat,
> hadoop-mapreduce-client-jobclient, hadoop-mapreduce-client-common]
> {code}
> This jira proposes we move all HBase-backend-related code from
> hadoop-yarn-server-timelineservice into its own module (possible name is
> yarn-server-timelineservice-storage) so that core RM modules do not depend on
> HBase modules any more.
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