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https://issues.apache.org/jira/browse/CASSANDRA-1891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cliff Moon updated CASSANDRA-1891:
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Attachment: supercolumn.patch
> large supercolumn deserialization invokes CSLM worst case scenario
> ------------------------------------------------------------------
>
> Key: CASSANDRA-1891
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1891
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.3, 0.4, 0.5, 0.6, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.6.5,
> 0.6.6, 0.6.7, 0.6.8, 0.7 beta 1, 0.7 beta 2, 0.7 beta 3, 0.7.0 rc 1, 0.7.0 rc
> 2
> Reporter: Cliff Moon
> Priority: Minor
> Attachments: supercolumn.patch
>
>
> SuperColumn deserialization hits a worst case insert scenario for CSLM:
> inserting pre-sorted entries one at a time. Inside of CSLM this requires
> scanning to the end of the list and doing a comparison at every step for
> every item inserted. This patch supplies a SortedMap interface to the
> supercolumn deserialization. CSLM will do a bulk insert from a SortedMap
> interface supplied in the constructor.
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