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Posted to issues@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2016/07/18 09:19:20 UTC

[jira] [Updated] (HBASE-14549) Simplify scanner stack reset logic

     [ https://issues.apache.org/jira/browse/HBASE-14549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated HBASE-14549:
----------------------------------
    Resolution: Won't Fix
        Status: Resolved  (was: Patch Available)

> Simplify scanner stack reset logic
> ----------------------------------
>
>                 Key: HBASE-14549
>                 URL: https://issues.apache.org/jira/browse/HBASE-14549
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>         Attachments: 14549-0.98.txt
>
>
> Looking at the code, I find that the logic is unnecessarily complex.
> We indicate in updateReaders that the scanner stack needs to be reset. Then almost all store scanner (and derived classes) methods need to check and actually reset the scanner stack.
> Compaction are rare, we should reset the scanner stack in update readers, and hence avoid needing to check in all methods.
> Patch forthcoming.



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