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From "Rick Branson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-5966) Average name query performance much worse for wide rows
Date Sun, 01 Sep 2013 00:12:51 GMT
Rick Branson created CASSANDRA-5966:
---------------------------------------

             Summary: Average name query performance much worse for wide rows
                 Key: CASSANDRA-5966
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5966
             Project: Cassandra
          Issue Type: Bug
            Reporter: Rick Branson
            Assignee: Rick Branson


The average performance for by-name queries degrades heavily on wide rows. This is because
in the wide row case SSTableNamesIterator deserializes every column in the entire row chunk
(64KB by default), where-as in the narrow row case, it stops deserializing as soon as it's
found the columns it's looking for.

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