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https://issues.apache.org/jira/browse/HBASE-5304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13197537#comment-13197537
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Zhihong Yu commented on HBASE-5304:
-----------------------------------

Since there is a chance that SplitKeyPolicy may decide not to split, I think 
the following code should be prepared:
{code}
+      SplitTransaction st = new SplitTransaction(parent, parent
+          .getSplitKeyPolicy().getSplitKey(parent, midKey));
{code}
Meaning, we should check whether a SplitTransaction is needed.
                
> Pluggable split key policy
> --------------------------
>
>                 Key: HBASE-5304
>                 URL: https://issues.apache.org/jira/browse/HBASE-5304
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.94.0
>
>         Attachments: 5304.txt
>
>
> We need a way to specify custom policies to determine split keys.

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