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https://issues.apache.org/jira/browse/HBASE-11811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-11811:
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Attachment: 11811-wip.txt
Fixes TestHFileBlock. Possible improvements:
* build index as we go to avoid building the complete index when only a single
Cell is read from a block
* persist the index. At write time we can pretty much get the offsets without
extra cost
* make this configurable...? We're adding 4 bytes per Cell of heap usage.
> 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: 11811-wip.txt, 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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