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From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-3758) HTable.delete triggers pre/postScannerOpen upcalls of RegionObserver
Date Fri, 15 Apr 2011 23:06:06 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Helmling resolved HBASE-3758.
----------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

Committed to trunk.  Thanks Mingjie.

> 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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