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https://issues.apache.org/jira/browse/HBASE-11811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107905#comment-14107905
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Lars Hofhansl commented on HBASE-11811:
---------------------------------------

And lastly, this obviously does not work when any block encoding is used as 
there is no offset for a Cell, so the code is only for ScannerVx and not 
EncodedScannerVx.


> Use binary search for seeking into a block
> ------------------------------------------
>
>                 Key: HBASE-11811
>                 URL: https://issues.apache.org/jira/browse/HBASE-11811
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: Lars Hofhansl
>         Attachments: block_index-v2.txt
>
>
> Currently upon every seek (including Gets) we need to linearly look through 
> the block from the beginning until we find the Cell we are looking for.
> It should be possible to build a simple cache of offsets of Cells for each 
> block as it is loaded and then use binary search to find the Cell in question.



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