[jira] [Commented] (CASSANDRA-4182) multithreaded compaction very slow with large single data file and a few tiny data files

[ https://issues.apache.org/jira/browse/CASSANDRA-4182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263407#comment-13263407 ] MaHaiyang commented on CASSANDRA-4182: -- 273m58.740s (multihtreaded disabled) for

[jira] [Commented] (CASSANDRA-4180) Remove 2-phase compaction

[ https://issues.apache.org/jira/browse/CASSANDRA-4180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13258813#comment-13258813 ] MaHaiyang commented on CASSANDRA-4180: -- About a years ago ,I tried to do this ,bu