hi, I have few question around the area how Cassandra use record's timestamp to determine which one to return from its replicated nodes ...
- A record's timestamp is determined by the Cassandra server node's system timestamp when the request arrive the server and NOT by the client timestamp who make the request(unlike timeuuid)?? - so clock synchronization between nodes is very important , clock drifting however is still possible even if one use NTP? I wonder what are the common practices in Cassandra community do to minimize clock drifting? - is there a recommend maximum drifting allowed in a cluster before things can get very ugly? - how to determine if two nodes in a cluster have out of sync clock? (as monitor or alert so appropriate action can be taken) Thanks
