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https://issues.apache.org/jira/browse/HBASE-14549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-14549:
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Description:
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.
was:
Looking at the code, I find that the logic is unnecessarily complex.
We indicate in updateReaders that the scanner stack needs to be reset. Than
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.
> 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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