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https://issues.apache.org/jira/browse/HBASE-17319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753122#comment-15753122
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Allan Yang commented on HBASE-17319:
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Just conformed the the master branch may have the same problem, this patch can
apply to master branch too.
> 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: 1.4.0
>
> Attachments: HBASE-17319-branch-1.patch
>
>
> 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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