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https://issues.apache.org/jira/browse/HBASE-16245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ankit Singhal updated HBASE-16245:
----------------------------------
    Attachment: HBASE-16245_v1.patch

[~ted_yu], ooh, sorry for hbase-site.xml changes , it was there locally 
already. Fixed the patch with review comments.
[~allan163], not sure, may be multiple threads accessing the same scanner 
calling close/nextinternal independently. 
Is it possible that region scanner is made closed during the split?

> RegionScannerImpl#nextInternal() may produce null pointer exception if 
> scanner is closed in between
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-16245
>                 URL: https://issues.apache.org/jira/browse/HBASE-16245
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ankit Singhal
>         Attachments: HBASE-16245.patch, HBASE-16245_v1.patch
>
>
> This issue is similar to HBASE-12274, FYI [[email protected]]
> If I follow the discussion on HBASE-12274 and synchronization is not the 
> option.
> then the attached patch handles null pointer exception in a same way as 
> HBASE-12274



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