diff --git a/example/redisfailover/custom-config.yaml b/example/redisfailover/custom-config.yaml
index 9ef42e5e9..b3b2f24aa 100644
--- a/example/redisfailover/custom-config.yaml
+++ b/example/redisfailover/custom-config.yaml
@@ -14,3 +14,7 @@ spec:
       - "maxclients 100"
       - "hz 50"
       - "timeout 60"
+      - "tcp-keepalive 60"
+      - "client-output-buffer-limit normal 0 0 0"
+      - "client-output-buffer-limit slave 1000000000 1000000000 0"
+      - "client-output-buffer-limit pubsub 33554432 8388608 60"