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https://issues.apache.org/jira/browse/HBASE-3922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041021#comment-13041021
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mingjian commented on HBASE-3922:
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Thanks for stack's comments.
I added a simple unit test and fix some bugs.
This patch only support [0-9,A-Z,a-z] by the variable "sascii". Is it necessary
to add some other charactors? Or allows users to customize?
> pre sharding in ascii
> ---------------------
>
> Key: HBASE-3922
> URL: https://issues.apache.org/jira/browse/HBASE-3922
> Project: HBase
> Issue Type: New Feature
> Components: client, scripts, util
> Affects Versions: 0.90.2
> Reporter: mingjian
> Priority: Minor
> Attachments: RegionSplit-v2.patch, RegionSplit.patch
>
>
> Some times we need pre-sharding some tables. With the default MD5StringSplit,
> it can only split with BigInteger. Maybe we need split with ascii, especially
> with [0-9,a-z,A-Z].
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