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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11339) HBase MOB
Date Wed, 22 Jul 2015 20:16:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jonathan Hsieh updated HBASE-11339:
    Release Note: 
The Moderate Object Storage (MOB) feature (HBASE-11339[1]) is modified I/O and compaction
path that allows individual moderately sized values (100KB-10MB) to be stored in a way that
write amplification is reduced when compared to the normal I/O path. MOB is defined in the
column family and it is almost isolated with other components, the features and performance
cannot be effected in normal columns.

For more details on how to use the feature please consult the HBase Reference Guide

> HBase MOB
> ---------
>                 Key: HBASE-11339
>                 URL: https://issues.apache.org/jira/browse/HBASE-11339
>             Project: HBase
>          Issue Type: Umbrella
>          Components: regionserver, Scanners
>    Affects Versions: 2.0.0
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>             Fix For: 2.0.0, hbase-11339
>         Attachments: 11339-master-v10.patch, 11339-master-v3.txt, 11339-master-v4.txt,
11339-master-v5.txt, 11339-master-v6.txt, 11339-master-v7.txt, 11339-master-v8.patch, 11339-master-v9.patch,
HBase MOB Design-v2.pdf, HBase MOB Design-v3.pdf, HBase MOB Design-v4.pdf, HBase MOB Design-v5.pdf,
HBase MOB Design.pdf, MOB user guide.docx, MOB user guide_v2.docx, MOB user guide_v3.docx,
MOB user guide_v4.docx, MOB user guide_v5.docx, hbase-11339-150519.patch, hbase-11339-in-dev.patch,
hbase-11339.150417.patch, merge-150212.patch, merge.150212b.patch, merge.150212c.patch, merge.150710.patch
>   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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