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https://issues.apache.org/jira/browse/HBASE-9203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13897526#comment-13897526
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ramkrishna.s.vasudevan commented on HBASE-9203:
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>>The only part that Phoenix would need is the custom load balancer that keeps
>>two regions co-located. If that functionality was available
This is like 95% outside the hbase code. I think some small part we had a
dependency on the hbase code. Rajesh could clarify that as for the current
status.
We just wrote a custom balancer and all the logic of colocating the regions was
in that balancer. So should be easy for Phoenix too.
> Secondary index support through coprocessors
> --------------------------------------------
>
> Key: HBASE-9203
> URL: https://issues.apache.org/jira/browse/HBASE-9203
> Project: HBase
> Issue Type: New Feature
> Reporter: rajeshbabu
> Assignee: rajeshbabu
> Attachments: SecondaryIndex Design.pdf, SecondaryIndex
> Design_Updated.pdf, SecondaryIndex Design_Updated_2.pdf
>
>
> We have been working on implementing secondary index in HBase and open
> sourced on hbase 0.94.8 version.
> The project is available on github.
> https://github.com/Huawei-Hadoop/hindex
> This Jira is to support secondary index on trunk(0.98).
> Following features will be supported.
> - multiple indexes on table,
> - multi column index,
> - index based on part of a column value,
> - equals and range condition scans using index, and
> - bulk loading data to indexed table (Indexing done with bulk load)
> Most of the kernel changes needed for secondary index is available in trunk.
> Very minimal changes needed for it.
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