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From "Bryan Duxbury (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-430) Performance: Scanners and getRow return maps with duplicate data
Date Sat, 09 Feb 2008 01:06:07 GMT
Performance: Scanners and getRow return maps with duplicate data
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                 Key: HBASE-430
                 URL: https://issues.apache.org/jira/browse/HBASE-430
             Project: Hadoop HBase
          Issue Type: Improvement
            Reporter: Bryan Duxbury
            Priority: Minor


Right now, whenever we get back multiple cells worth of data at a time, we do so in a map
of HStoreKey->byte[]. This means that there is a duplicated Text row and long timestamp
at the very least between every cell. This is quite a bit wasted. It also means we have to
do a lot of translation every time. 

We could create a new Writable that contains just one row, one timestamp, and a map of Text->byte[].

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