We bootstrapped a node with replace_address and noticed that the WriteCount for each CF stayed at 0 until the bootstrap was complete. After the bootstrap completed cfstats reported the expected values for WriteCount on each CF.
The node wrote gigs of data to various CFs during the bootstrap so it was clearly "writing" in some sense and it has the expected behavior after the bootstrap. Is cfstats correct when it reports that there were no writes during a bootstrap? Peter