[ https://issues.apache.org/jira/browse/CASSANDRA-4885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507573#comment-13507573 ]
Jonathan Ellis commented on CASSANDRA-4885: ------------------------------------------- What if we use our knowledge of the cql3 schema to only generate BF for wide rows? > Remove or rework per-row bloom filters > -------------------------------------- > > Key: CASSANDRA-4885 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4885 > Project: Cassandra > Issue Type: Improvement > Components: Core > Reporter: Jonathan Ellis > Assignee: Jason Brown > Fix For: 1.3 > > Attachments: 0001-CASSANRDA-4885-Remove-per-row-bloom-filter.patch, > 0002-CASSANRDA-4885-update-test.patch > > > Per-row bloom filters may be a misfeature. > On small rows we don't create them. > On large rows we essentially only do slice queries that can't take advantage > of it. > And on very large rows if we ever did deserialize it, the performance hit of > doing so would outweigh the benefit of skipping the actual read. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira