Haibo Chen commented on YARN-5667:

Please leave out part 8 of the patch when you review. I will go over the 
dependency again to do the cleanup. Thinking of going over the dependency 
listed in maven dependency:analyze, and checking if the dependency is indeed 
used in source code (not rely on mvn, or compilation). Any suggestion? 

> 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: New module structure.png, part1.yarn5667.prelim.patch, 
> part2.yarn5667.prelim.patch, part3.yarn5667.prelim.patch, 
> part4.yarn5667.prelim.patch, part5.yarn5667.prelim.patch, 
> pt1.yarn5667.001.patch, pt2.yarn5667.001.patch, pt3.yarn5667.001.patch, 
> pt4.yarn5667.001.patch, pt5.yarn5667.001.patch, pt6.yarn5667.001.patch, 
> pt9.yarn5667.001.patch, yarn5667-001.tar.gz
> 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.

This message was sent by Atlassian JIRA

To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org

Reply via email to