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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11339) HBase LOB
Date Tue, 17 Jun 2014 08:02:03 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14033537#comment-14033537
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Jingcheng Du commented on HBASE-11339:
--------------------------------------

bq. The above would be a useful enhancement, not just for LOB feature. This would simplify
decision making w.r.t. flushing
HI, [~yuzhihong@gmail.com]. You mean to write the WAL by stores? If we use the HLog as the
Lob files directly, is it efficient to seek a KV in it? I don't think so.

> HBase LOB
> ---------
>
>                 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 massive binary data like images, documents into Apache
HBase. Unfortunately directly saving the binary LOB(large object) to HBase leads to a worse
performance since the frequent split and compaction.
>   In this design, the LOB 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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