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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11339) HBase MOB
Date Thu, 19 Jun 2014 07:25:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14037065#comment-14037065
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Jingcheng Du commented on HBASE-11339:
--------------------------------------

Correct the typo.
bq. Usually by the requirements of customers, using the TTL to clean expired mob files are
very important, it's more efficient to clean the mob files than the sweep tool(mob files are
hardly updated, but have a fixed life time).
-> Usually by the requirements of customers, using the TTL to clean expired mob files are
very important, and it's more efficient to clean the expired mob files than the sweep tool
using MapReduce(mob files are hardly updated, but have a fixed life time).

> HBase MOB
> ---------
>
>                 Key: HBASE-11339
>                 URL: https://issues.apache.org/jira/browse/HBASE-11339
>             Project: HBase
>          Issue Type: New Feature
>          Components: regionserver, Scanners
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>         Attachments: HBase LOB Design.pdf
>
>
>   It's quite useful to save the medium binary data like images, documents into Apache
HBase. Unfortunately directly saving the binary MOB(medium object) to HBase leads to a worse
performance since the frequent split and compaction.
>   In this design, the MOB data are stored in an more efficient way, which keeps a high
write/read performance and guarantees the data consistency in Apache HBase.



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