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From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-1267) Improve performance of cached row slices
Date Sun, 11 Jul 2010 15:59:49 GMT
Improve performance of cached row slices
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                 Key: CASSANDRA-1267
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1267
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: T Jake Luciani
            Priority: Minor
             Fix For: 0.7


In Lucandra, I have a use case to pull all columns for a given row.  

I've noticed that for rows with large numbers of columns this takes much longer than I would
think since row caching is enabled.

After looking into this I see that the cached row is rebuilt and pruned even though I want
all columns.  
This patch skips this use case and in my case has improved performance significantly.

>From ~400ms to ~50ms



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