# Enable tell-based protocol between frontend (applications) and backend (shards). Using this protocol
# should avoid AskTimeoutExceptions seen under heavy load. Defaults to false (use ask-based protocol).
#use-tell-based-protocol=true
+
+# Tune the maximum number of entries a follower is allowed to lag behind the leader before it is
+# considered out-of-sync. This flag may require tuning in face of a large number of small transactions.
+#sync-index-threshold=10