Re: Coordination of expired TTLs compared to tombstones

2015-05-29 Thread Tyler Hobbs
On Fri, May 29, 2015 at 1:31 PM, Robert Wille wrote: > > I was wondering how that compares to cells with expired TTLs. Does the > node get to skip sending data back to the coordinator for an expired TTL? No, it has to send expired cells. > > Suppose you wrote a cell with no TTL, and then upda

Coordination of expired TTLs compared to tombstones

2015-05-29 Thread Robert Wille
I was wondering something about Cassandra’s internals. Suppose I have CL > 1 and I read a partition with a bunch of tombstones. Those tombstones have to be sent to the coordinator for consistency reasons so that if another replica produces non-tombstone data that is older than the tombstone, it