[jira] [Commented] (HBASE-17319) Truncate table with preserve after split may cause truncation to fail

["huaxiang sun (JIRA)" <ji...@apache.org>]

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

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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