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https://issues.apache.org/jira/browse/HBASE-13346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16174783#comment-16174783
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Hadoop QA commented on HBASE-13346:
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  
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| {color:red}-1{color} | {color:red} docker {color} | {color:red}499m 
54s{color} | {color:red} Docker failed to build yetus/hbase:5d60123. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HBASE-13346 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12888211/HBASE-13346.master.003.patch
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| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/8722/console |
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> Clean up Filter package for post 1.0 s/KeyValue/Cell/g
> ------------------------------------------------------
>
>                 Key: HBASE-13346
>                 URL: https://issues.apache.org/jira/browse/HBASE-13346
>             Project: HBase
>          Issue Type: Bug
>          Components: API, Filters
>    Affects Versions: 2.0.0
>            Reporter: Lars George
>            Assignee: Tamas Penzes
>            Priority: Critical
>             Fix For: 2.0.0-alpha-4
>
>         Attachments: HBASE-13346.master.001.patch, 
> HBASE-13346.master.002.patch, HBASE-13346.master.003.patch, 
> HBASE-13346.master.003.patch
>
>
> Since we have a bit of a messy Filter API with KeyValue vs Cell reference 
> mixed up all over the place, I recommend cleaning this up once and for all. 
> There should be no {{KeyValue}} (or {{kv}}, {{kvs}} etc.) in any method or 
> parameter name.
> This includes deprecating and renaming filters too, for example 
> {{FirstKeyOnlyFilter}}, which really should be named {{FirstKeyValueFilter}} 
> as it does _not_ just return the key, but the entire cell. It should be 
> deprecated and renamed to {{FirstCellFilter}} (or {{FirstColumnFilter}} if 
> you prefer).
> In general we should clarify and settle on {{KeyValue}} vs {{Cell}} vs 
> {{Column}} in our naming. The latter two are the only ones going forward with 
> the public API, and are used synonymous. We should carefully check which is 
> better suited (is it really a specific cell, or the newest cell, aka the 
> newest column value) and settle on a naming schema.



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