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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-16594) ROW_INDEX_V2 DBE
Date Wed, 05 Apr 2017 23:36:46 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Busbey updated HBASE-16594:
--------------------------------
    Fix Version/s:     (was: 1.4.0)
                   1.5.0

> ROW_INDEX_V2 DBE
> ----------------
>
>                 Key: HBASE-16594
>                 URL: https://issues.apache.org/jira/browse/HBASE-16594
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Performance
>            Reporter: binlijin
>            Assignee: binlijin
>             Fix For: 2.0.0, 1.5.0
>
>         Attachments: HBASE-16594-master_v1.patch, HBASE-16594-master_v2.patch
>
>
> See HBASE-16213, ROW_INDEX_V1 DataBlockEncoding.
> ROW_INDEX_V1 is the first version which have no storage optimization, 
> ROW_INDEX_V2 do storage optimization: store every row only once, store column family
only once in a HFileBlock.
> ROW_INDEX_V1 is : 
> /** 
>  * Store cells following every row's start offset, so we can binary search to a row's
cells. 
>  * 
>  * Format: 
>  * flat cells 
>  * integer: number of rows 
>  * integer: row0's offset 
>  * integer: row1's offset 
>  * .... 
>  * integer: dataSize 
>  * 
> */
> ROW_INDEX_V2 is :
>  * row1 qualifier timestamp type value tag
>  *          qualifier timestamp type value tag
>  *          qualifier timestamp type value tag
>  * row2 qualifier timestamp type value tag
>  * row3 qualifier timestamp type value tag
>  *          qualifier timestamp type value tag
>  * .... 
>  * integer: number of rows 
>  * integer: row0's offset 
>  * integer: row1's offset 
>  * .... 
>  * column family
>  * integer: dataSize 



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