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From "Neil Ferguson (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10311) Add Scan object to preScannerNext and postScannerNext methods on RegionObserver
Date Fri, 10 Jan 2014 16:23:51 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Neil Ferguson updated HBASE-10311:
----------------------------------

    Attachment: HBASE-10311.patch

Patch attached

> Add Scan object to preScannerNext and postScannerNext methods on RegionObserver
> -------------------------------------------------------------------------------
>
>                 Key: HBASE-10311
>                 URL: https://issues.apache.org/jira/browse/HBASE-10311
>             Project: HBase
>          Issue Type: New Feature
>          Components: Coprocessors
>    Affects Versions: 0.96.1.1
>            Reporter: Neil Ferguson
>         Attachments: HBASE-10311.patch
>
>
> I'd like to be able to access the org.apache.hadoop.hbase.client.Scan that was used to
create a scanner in the RegionObserver.preScannerNext and RegionObserver.postScannerNext methods.
> The Scan object is available in the preScannerOpen method, but not in the preScannerNext
or postScannerNext methods.
> The reason is that I'd like to access the attributes of the Scan object. I want to do
some resource management in the coprocessor based on some attributes of the Scan object (like,
who created it).
> Alternatively, does anybody know of another way to get hold of the Scan object in these
methods without modifying things?



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