[jira] [Updated] (HBASE-9204) An Offline SplitParent Region can be assigned breaking split references

["Matteo Bertozzi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-9204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matteo Bertozzi updated HBASE-9204:
-----------------------------------

    Attachment: HBASE-9294-0.94-v0.patch

attached a simple patch that prevents the splitParent to be opened. This seems to do the trick, but I think the assignment manager should prevent a splitParent to be assigned.
                
> An Offline SplitParent Region can be assigned breaking split references
> -----------------------------------------------------------------------
>
>                 Key: HBASE-9204
>                 URL: https://issues.apache.org/jira/browse/HBASE-9204
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>    Affects Versions: 0.98.0, 0.95.1, 0.94.10
>            Reporter: Matteo Bertozzi
>            Priority: Blocker
>         Attachments: HBASE-9294-0.94-v0.patch
>
>
> An offline split parent region can be assigned by using 'assign' from shell.
> This may trigger a compaction on the split parent region that should be offline, breaking the references of the two daughters.
> The easy way to test this is:
>  * disable compactions
>  * create a table and insert some row
>  * split
>  * shutdown the master (otherwise there's a state checked inside the AssignmentManager)
>  * start the master
>  * assign the region marked as OFFLINE => true, SPLIT => true (the compaction on region startup will probably break the reference of the two  daughters)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira