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Posted to issues@hbase.apache.org by "binlijin (JIRA)" <ji...@apache.org> on 2016/07/12 05:25:11 UTC

[jira] [Commented] (HBASE-16213) A new HFileBlock structure for fast random get

    [ https://issues.apache.org/jira/browse/HBASE-16213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15372193#comment-15372193 ] 

binlijin commented on HBASE-16213:
----------------------------------

ROW_INDEX_V1 is the first version.
ROW_INDEX_V2 store column family only once.

> A new HFileBlock structure for fast random get
> ----------------------------------------------
>
>                 Key: HBASE-16213
>                 URL: https://issues.apache.org/jira/browse/HBASE-16213
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: binlijin
>         Attachments: HBASE-16213.patch
>
>
> HFileBlock store cells sequential, current when to get a row from the block, it scan from the first cell until the row's cell.
> The new structure store every row's start offset with data, so it can find the exact row with binarySearch.



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