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Posted to commits@cassandra.apache.org by "Rick Branson (JIRA)" <ji...@apache.org> on 2013/09/01 02:12:51 UTC

[jira] [Created] (CASSANDRA-5966) Average name query performance much worse for wide rows

Rick Branson created CASSANDRA-5966:
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             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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