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Jonathan Ellis commented on CASSANDRA-3974: ------------------------------------------- bq. Part of the code I changed was in CFMetaData's toThrift and fromThrift methods Let me back up. I can see two main approaches towards respecting the per-CF ttl: # Set the column TTL to the max(column, CF) ttl on insert; then the rest of the code doesn't have to know anything changed # Take max(column, CF) ttl during operations like compaction, and leave column ttl to specify *only* the column TTL The code in UpdateStatement led me to believe you're going with option 1. So what I meant by my comment was, you need to make a similar change for inserts done over Thrift RPC, as well. (to/from Thrift methods are used for telling Thrift clients about the schema, but are not used for insert/update operations.) Does that help? bq. Sorry, I'm not sure to which part of the code you're referring CFMetadata.getTimeToLive. Sounds like you addressed this anyway. > Per-CF TTL > ---------- > > Key: CASSANDRA-3974 > URL: https://issues.apache.org/jira/browse/CASSANDRA-3974 > Project: Cassandra > Issue Type: New Feature > Reporter: Jonathan Ellis > Assignee: Kirk True > Priority: Minor > Fix For: 1.2 > > Attachments: trunk-3974.txt > > > Per-CF TTL would allow compaction optimizations ("drop an entire sstable's > worth of expired data") that we can't do with per-column. -- 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