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https://issues.apache.org/jira/browse/HBASE-3082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923317#action_12923317
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HBase Review Board commented on HBASE-3082:
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Message from: "Ryan Rawson" <ryano...@gmail.com>
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src/main/java/org/apache/hadoop/hbase/regionserver/InternalScan.java
<http://review.cloudera.org/r/1053/#comment5396>
Why not put these into the base class? Why create an entirely new class
just to hold these?
src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java
<http://review.cloudera.org/r/1053/#comment5397>
Would this code be cleaner if we didnt have to use instanceof?
- Ryan
> For ICV gets, first look in MemStore before reading StoreFiles
> --------------------------------------------------------------
>
> Key: HBASE-3082
> URL: https://issues.apache.org/jira/browse/HBASE-3082
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Jonathan Gray
> Assignee: Prakash Khemani
>
> For incrementColumnValue operations, it is possible to check MemStore for the
> column being incremented without sacrificing correctness. If the column is
> not found in MemStore, we would then have to do a normal Get that
> opens/checks all StoreFiles for the given Store.
> In practice, this makes increment operations significantly faster for
> recently/frequently incremented columns.
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