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https://issues.apache.org/jira/browse/HBASE-17319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16310555#comment-16310555
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huaxiang sun commented on HBASE-17319:
--------------------------------------

I checked the master branch, it seems that the issue is there. After that, the 
new test failed for the master. Let me post the patch for the master.

> Truncate table with preserve after split may cause truncation to fail
> ---------------------------------------------------------------------
>
>                 Key: HBASE-17319
>                 URL: https://issues.apache.org/jira/browse/HBASE-17319
>             Project: HBase
>          Issue Type: Bug
>          Components: Admin
>    Affects Versions: 1.1.7, 1.2.4
>            Reporter: Allan Yang
>            Assignee: Allan Yang
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: 17319-branch-1.patch, 17319.stack, 
> HBASE-17319-branch-1.patch, HBASE-17319-branch-1.patch, HBASE-17319.patch, 
> TestTruncateTableProcedure-output.tar.gz
>
>
> In truncateTableProcedue , when getting tables regions  from meta to recreate 
> new regions, split parents are not excluded, so the new regions can end up 
> with the same start key, and the same region dir:
> {noformat}
> 2016-12-14 20:15:22,231 WARN  [RegionOpenAndInitThread-writetest-1] 
> regionserver.HRegionFileSystem: Trying to create a region that already exists 
> on disk: 
> hdfs://hbasedev1/zhengyan-hbase11-func2/.tmp/data/default/writetest/9b2c8d1539cd92661703ceb8a4d518a1
> {noformat} 
> The truncateTableProcedue will retry forever and never get success.
> A attached unit test shows everything.



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