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https://issues.apache.org/jira/browse/HBASE-24309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17468299#comment-17468299
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Giuseppe Valente commented on HBASE-24309:
------------------------------------------

Looks like this change removed the possibility to use a profile to specify the 
Hadoop version, introduced here:

https://issues.apache.org/jira/browse/HBASE-18942

What's the current way to specify a version of Hadoop? I end up with Hadoop 
2.10.0 no matter what I do.

> Avoid introducing log4j and slf4j-log4j dependencies for modules other than 
> hbase-assembly
> ------------------------------------------------------------------------------------------
>
>                 Key: HBASE-24309
>                 URL: https://issues.apache.org/jira/browse/HBASE-24309
>             Project: HBase
>          Issue Type: Sub-task
>          Components: logging, pom
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.3.0
>
>
> In general, a library should not force the down stream users to use a 
> specific logging framework, and this is why there is a slf4j library.
> For HBase, since we also publish the testing-util module which almost depends 
> on all other sub modules, we should not introduce logging dependencies other 
> than slf4j-api in these modules. We should only add log4j dependencies in 
> hbase-assembly and ship it with our binary distribution.
> This is also important for switching to log4j2.



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