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https://issues.apache.org/jira/browse/CRUNCH-475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14169279#comment-14169279
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Lee Dongjin commented on CRUNCH-475:
------------------------------------

I almost completed the patch, but get stuck on one problem: KeyValue -> Cell 
conversion requires modification on serialization / deserialization logic, 
which is implemented in org.apache.crunch.io.hbase.HBaseTypes. However, dislike 
to KeyValue, there is no concrete state to be serialized / deserialized. I 
don't know how to replace HBaseTypes#bytesToKeyValue and 
HBaseTypes#keyValueToBytes.

May I assume that the Cell object in WritableType<Cell> is actually KeyValue 
object?

> Compilation problem caused by KeyValue -> Cell conversion
> ---------------------------------------------------------
>
>                 Key: CRUNCH-475
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-475
>             Project: Crunch
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.12.0
>            Reporter: Lee Dongjin
>            Assignee: Josh Wills
>            Priority: Minor
>
> From hbase 0.99, Using KeyValue class for hbase I/O is deprecated and in many 
> APIs it was replaced with Cell interface[^1][^2][^3]. This change causes 
> compilation error with hbase 0.99, which is the first hbase version that 
> supports hadoop 2 only.
> For this change will be permanent from hbase 1.0 and on, it would be better 
> to be fixed.
> [^1]: https://issues.apache.org/jira/browse/HBASE-11805
> [^2]: https://issues.apache.org/jira/browse/HBASE-9359
> [^3]: https://issues.apache.org/jira/browse/HBASE-10526



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