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https://issues.apache.org/jira/browse/HBASE-9203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13741521#comment-13741521
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Ted Yu commented on HBASE-9203:
-------------------------------
The trunk patch would put new classes for secondaryindex in a new module, I
assume.
On page 15 of Anoop's presentation, one index table was created, right ?
If the number of index tables increases, what would the put performance be like
?
{code}
// TODO check some implementations here. Seems buggy!!
public class IndexHalfStoreFileReader extends StoreFile.Reader {
{code}
What potential bug may exist in IndexHalfStoreFileReader ?
For TestIndexRegionObserver, what does testHDP2938 cover ?
> Secondary index support through coprocessors
> --------------------------------------------
>
> Key: HBASE-9203
> URL: https://issues.apache.org/jira/browse/HBASE-9203
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 0.98.0
> Reporter: rajeshbabu
> Assignee: rajeshbabu
>
> 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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