- kclient: retry alloc on ENOMEM when reading from connection?
filestore
-- need to check per-object state for conflicting reads and unapplied writes
-- use want_delayed(), want_rmw() to toggle delayed/rmw mode? or just for rmw->delayed transition?
+- throttling
+- flush objects onto primary during recovery
- audit queue_transaction calls for dependencies
- convert apply_transaction calls in handle_map to queue?
- need an osdmap cache layer?