[ https://issues.apache.org/jira/browse/CASSANDRA-1470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-1470: -------------------------------------- Attachment: 1470-v2.txt v2 is rebased to 0.6 branch with some minor cleanup on the Java side. > use direct io for compaction > ---------------------------- > > Key: CASSANDRA-1470 > URL: https://issues.apache.org/jira/browse/CASSANDRA-1470 > Project: Cassandra > Issue Type: Improvement > Components: Core > Reporter: Jonathan Ellis > Fix For: 0.6.6 > > Attachments: 1470-v2.txt, 1470.txt > > > When compaction scans through a group of sstables, it forces the data in the > os buffer cache being used for hot reads, which can have a dramatic negative > effect on performance. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.