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https://issues.apache.org/jira/browse/HBASE-11339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348357#comment-14348357
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Wilm Schumacher commented on HBASE-11339:
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love that feature! But I have two newbie feature requests:
1.) When I run my hbase with the mob feature everything works fine. Except that
I get
java.lang.illegalargumentexception key value size too large
when the data i load up gets to large. One solution would be to set the limit
to 0, but I think that the limitation is kind of a usefull feature. Perhaps it
would be a nice feature to ignore the limit for the families which have the
is_mob => 'true'.
2.) in the documentation there is "MOB" and "LOB" defined. However, in the
corpus of the text only MOBs are discussed. By the design explaination I cannot
see why LOBs would be more problematic (except the client upload) to save than
MOBs. Are there any reasons to avoid "LOBs" (up to several hundreds of MBs)
from the database site of view?
> 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: hbase-11339
>
> Attachments: HBase MOB Design-v2.pdf, HBase MOB Design-v3.pdf, HBase
> MOB Design-v4.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-in-dev.patch, merge-150212.patch,
> merge.150212b.patch, merge.150212c.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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