Edward Capriolo created CASSANDRA-4565: ------------------------------------------
Summary: TTL columns with older then gcgrace do not need to flush Key: CASSANDRA-4565 URL: https://issues.apache.org/jira/browse/CASSANDRA-4565 Project: Cassandra Issue Type: Improvement Reporter: Edward Capriolo Assignee: Edward Capriolo With memcache many people are willing to sacrifice durability for performance. Cassandra has a TimeToLive feature that can be used in caching scenarios with low values for gc_grace_seconds. However from a code dive it seems that cassandra will always write TTL to disk, even those that are beyond gc_grace_seconds. If a user very large memtables,small ttl, and low gc_grace it is possible that writing memtables can be skipped entirely in some scenarios. -- 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