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Posted to issues@hbase.apache.org by "Enis Soztutar (JIRA)" <ji...@apache.org> on 2013/01/30 03:41:14 UTC
[jira] [Updated] (HBASE-7716) Row Groups / Row Family / Entity
Groups in HBase
[ https://issues.apache.org/jira/browse/HBASE-7716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Enis Soztutar updated HBASE-7716:
---------------------------------
Attachment: Entity Groups in HBase.txt
I've collected some of my thoughts here. Would love to hear feedback, discuss feasibility, etc.
> Row Groups / Row Family / Entity Groups in HBase
> ------------------------------------------------
>
> Key: HBASE-7716
> URL: https://issues.apache.org/jira/browse/HBASE-7716
> Project: HBase
> Issue Type: New Feature
> Components: Client, regionserver
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: 0.98.0
>
> Attachments: Entity Groups in HBase.txt
>
>
> This issue is to discuss the possible addition to the HBase data model for "Row Groups".
> As we are nearing 1.0, discussing this for 0.98 seems the right time, especially given that we have custom region split policies, local transactions, and API overhaul around data types -> bytes.
> Row Groups are semantic groupings of rows in the Hbase data model. All rows within a given row group share the same row group key.
> Row groups are similar to column families in HBase or locality groups in BigTable, but transposed to rows instead of columns. All the rows within a row group physically belong together, and served by a single region. This means that region boundaries cannot split the row group.
> Row groups are not predefined, and are dynamic. There can be one row group per row.
> Row keys are fully optional, and backwards compatible.
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