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Jason Rutherglen updated CASSANDRA-4324: ---------------------------------------- Attachment: CASSANDRA-4324.patch Reran with sorting the keys: Reran FST: 3,564,246 IndexSummary: 4,399,624 The FST is 19% smaller, if the IndexSummary mem calculation is correct. > Implement Lucene FST in for key index > ------------------------------------- > > Key: CASSANDRA-4324 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4324 > Project: Cassandra > Issue Type: Improvement > Reporter: Jason Rutherglen > Assignee: Jason Rutherglen > Priority: Minor > Fix For: 1.2 > > Attachments: CASSANDRA-4324.patch, CASSANDRA-4324.patch, > CASSANDRA-4324.patch, lucene-core-4.0-SNAPSHOT.jar > > > The Lucene FST data structure offers a compact and fast system for indexing > Cassandra keys. More keys may be loaded which in turn should seeks faster. > * Update the IndexSummary class to make use of the Lucene FST, overriding the > serialization mechanism. > * Alter SSTableReader to make use of the FST seek mechanism -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira