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https://issues.apache.org/jira/browse/HBASE-3758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13020532#comment-13020532
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Hudson commented on HBASE-3758:
-------------------------------
Integrated in HBase-TRUNK #1858 (See
[https://hudson.apache.org/hudson/job/HBase-TRUNK/1858/])
> HTable.delete triggers pre/postScannerOpen upcalls of RegionObserver
> --------------------------------------------------------------------
>
> Key: HBASE-3758
> URL: https://issues.apache.org/jira/browse/HBASE-3758
> Project: HBase
> Issue Type: Bug
> Components: coprocessors
> Reporter: Mingjie Lai
> Assignee: Mingjie Lai
> Fix For: 0.92.0
>
> Attachments: HBase3758-2.patch, HBase3758-4.patch
>
>
> Currently RegionObserver pre/postScannerOpen() upcalls are injected at
> HRegion.instantiateInternalScanner(). If someone uses scanner methods at
> HRegion, ScannerOpen upcalls can be triggered unexpectedly. HBase-3583 pulled
> scannerNext and scannerClose from HRegion to HRegionServer. We also need to
> pull scannerOpen to HRegionObserver to prevent unexpected triggers.
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