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https://issues.apache.org/jira/browse/HBASE-5699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268055#comment-13268055
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Zhihong Yu commented on HBASE-5699:
-----------------------------------

Using trunk has the drawback that performance numbers (without this feature) 
gathered on day N may be obsolete by day N + 5, considering the amount of 
changes going into trunk.

I would suggest tackling replication as first priority. Dictionary WAL 
compression brought unexpected complexities w.r.t. replication. We shouldn't 
make replication any harder.

w.r.t. refactoring HLog into an interface, I tend to think that the interface 
should make different implementations possible.
If we only have one implementation, it is not easy to evaluate the 
effectiveness of the refactoring.
                
> Run with > 1 WAL in HRegionServer
> ---------------------------------
>
>                 Key: HBASE-5699
>                 URL: https://issues.apache.org/jira/browse/HBASE-5699
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: binlijin
>            Assignee: Li Pi
>


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