[jira] [Commented] (HBASE-22614) Master should provide the ability to delete a specified region

["Wellington Chevreuil (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-22614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16870078#comment-16870078 ] 

Wellington Chevreuil commented on HBASE-22614:
----------------------------------------------

There's already fixHdfsOverlaps in hbck1, and it's also possible to merge overlapping regions with hbase shell merge command.

> Master should provide the ability to delete a specified region
> --------------------------------------------------------------
>
>                 Key: HBASE-22614
>                 URL: https://issues.apache.org/jira/browse/HBASE-22614
>             Project: HBase
>          Issue Type: Improvement
>          Components: hbck
>    Affects Versions: 1.3.1, 2.1.0
>            Reporter: Bo Cui
>            Priority: Major
>
> If there is a overlap in hbase, it can not be fixed completely with hbck, because there is old regioninfo in master regionStates.
> Key reproducible steps:
> 1.Constructing a overlap scenario（region1 and region2 have the same startKey,region1 is opend on the regionserver1,region2 is opend on the regionserver2）
> 2.use hbck repair
> 3.regionserver1 or regionserver2 aborted
> 4.region1 or region2 is reopened
>  
> Master should provide the ability to remove a specified region, and hbck uses the ability.
> {code:java}
> public deleteSpecifiedRegion(regionName){
> if(MetaTableAccessor.getRegionResult(regionName)==null){
> RegionStates.removeRegion(regionName)
> }
> }
> {code}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)