large supercolumn deserialization invokes CSLM worst case scenario
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Key: CASSANDRA-1891
URL: https://issues.apache.org/jira/browse/CASSANDRA-1891
Project: Cassandra
Issue Type: Improvement
Components: Core
Affects Versions: 0.7.0 rc 2, 0.7.0 rc 1, 0.7 beta 3, 0.7 beta 2, 0.7 beta
1, 0.6.8, 0.6.7, 0.6.6, 0.6.5, 0.6.4, 0.6.3, 0.6.2, 0.6.1, 0.6, 0.5, 0.4, 0.3
Reporter: Cliff Moon
Priority: Minor
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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