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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-883) Secondary Indexes
Date Thu, 25 Sep 2008 21:57:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12634648#action_12634648

stack commented on HBASE-883:

Hey Clint:

Highlevel, talk on the list has made mention of secondary indices done using lucene rather
than keeping a second table.  Because of this, one suggestion to consider -- non-binding,
just a suggestion -- is that you might include the type of your secondary index -- i.e. table
index -- when naming classes, etc.  For example, IndexedRegionServer should perhaps become
TableIndexedRegionServer (bit of a mouthful -- maybe you have a better name) or maybe better,
just change your package name -- use tableindexed or tindexed instead of indexed -- so its
clear how your secondary index is implemented.


+ Is this inclusion intentional: '+  public static final String ROW_KEY_COMPARATOR = "ROW_KEY_COMPARATOR";'?
 Is this leak from another patch?  Same for HSK.java.... and setRowKeyComparator in HTD, etc.
+ You have to copy '+  static private byte[] format(final int number) {' from PerformanceEvaluation
because its inaccessible?  I'd suggest change access on PE so you don't have to duplicate.

... more to follow

> Secondary Indexes
> -----------------
>                 Key: HBASE-883
>                 URL: https://issues.apache.org/jira/browse/HBASE-883
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: client, regionserver
>            Reporter: Clint Morgan
>            Assignee: Clint Morgan
>         Attachments: hbase-883.patch
> I'm working on a secondary index impl. The basic idea is to maintain a separate table
per index.

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