diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 957fcdff55..3593c832da 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -490,13 +490,6 @@ rtc_server {
     # Whether enable the perf stat at http://localhost:1985/api/v1/perf
     # default: on
     perf_stat       on;
-    # The queue length, in number of mmsghdr, in messages.
-    # For example, 30 means we will cache 30K messages at most.
-    # If exceed, we will drop messages.
-    # @remark Each reuseport use a dedicated queue, if queue is 2000, reuseport is 4,
-    #       then system queue is 2000*4 = 8k, user can incrase reuseport to incrase the queue.
-    # default: 2000
-    queue_length    2000;
     # For RTP packet and its payload cache.
     rtp_cache {
         # Whether enable the RTP packet cache.