On Tue, Apr 6, 2010 at 8:17 AM, Jonathan Ellis <jbel...@gmail.com> wrote: > On Tue, Apr 6, 2010 at 2:13 AM, Ilya Maykov <ivmay...@gmail.com> wrote: >> That does sound similar. It's possible that the difference I'm seeing >> between ConsistencyLevel.ZERO and ConsistencyLevel.ALL is simply due >> to the fact that using ALL slows down the writers enough that the GC >> can keep up. > > No, it's mostly due to ZERO meaning "buffer this locally and write it > when it's convenient," and buffering takes memory. If you check your > tpstats you will see the pending ops through the roof on the node > handling the thrift connections. >
This sounds like a great FAQ entry? (apologies if it's already included) So that ideally users would only use this setting if they (think they) know what they are doing. :-) -+ Tatu +-
