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https://issues.apache.org/jira/browse/HBASE-11339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14118682#comment-14118682
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Anoop Sam John commented on HBASE-11339:
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bq.HBase has never required MapReduce before and we should really think hard
before introducing such a change. Are we sure the desired objectives cannot be
met with a pluggable compaction policy?
It would be possible for a compaction on MOB files with out needing MR. Subtask
HBASE-11861 aims for this.
> HBase MOB
> ---------
>
> Key: HBASE-11339
> URL: https://issues.apache.org/jira/browse/HBASE-11339
> Project: HBase
> Issue Type: Umbrella
> Components: regionserver, Scanners
> Reporter: Jingcheng Du
> Assignee: Jingcheng Du
> 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, hbase-11339-in-dev.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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