[jira] [Commented] (HBASE-21084) The split parent region becomes online after cloning a snapshot

["Toshihiro Suzuki (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-21084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16587372#comment-16587372 ] 

Toshihiro Suzuki commented on HBASE-21084:
------------------------------------------

It seems like TransitRegionStateProcedure opens even split parent regions. I added the check not to open a region if it's a split parent region in the patch. Could you please take a look at the patch? [~Apache9]

> The split parent region becomes online after cloning a snapshot
> ---------------------------------------------------------------
>
>                 Key: HBASE-21084
>                 URL: https://issues.apache.org/jira/browse/HBASE-21084
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Toshihiro Suzuki
>            Assignee: Toshihiro Suzuki
>            Priority: Major
>         Attachments: HBASE-21084.master.001.patch
>
>
> Investigating HBASE-21015, I found another issue. It seems like after HBASE-20881, the split parent region becomes online after cloning a snapshot.
> Steps to reproduce are as follows, which is the same as the steps in HBASE-21015:
> 1. Create a table
> {code}
> create "test", "cf"
> {code}
> 2. Put some data into the table
> {code}
> (0...2000).each{|i| put "test", "row#{i}", "cf:col", "val"}
> {code}
> 3. Split the table
> {code}
> split "test"
> {code}
> 4. Take a snapshot of the table before CatalogJanitor cleans up the split parent region
> {code}
> snapshot "test", "snap"
> {code}
> 5. Clone the snapshot
> {code}
> clone_snapshot "snap", "cloned_table"
> {code}
> After following the above steps, the split parent region becomes online.



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