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https://issues.apache.org/jira/browse/HBASE-5723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13249927#comment-13249927
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Todd Lipcon commented on HBASE-5723:
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This seems to give even fewer guarantees than HBASE-3340 (which as I understood
it used the WAL to ensure reasonably timely consistency of the index table).
I'm still of the opinion that these things should start as separate projects,
rather than inside HBase core, and only if we see a high demand for them and
good maintenance, we should pull it in. I don't think there is much demand for
non-consistent indexes.
> Simple Design of Secondary Index
> --------------------------------
>
> Key: HBASE-5723
> URL: https://issues.apache.org/jira/browse/HBASE-5723
> Project: HBase
> Issue Type: New Feature
> Components: coprocessors
> Reporter: ShiXing
> Priority: Minor
> Attachments: Simple Design of HBase SecondaryIndex.pdf
>
>
> Use coprocessor to create index. And primary tables' compaction to purge the
> stale data.
> Attach file is the Design of the Seconday Index.
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