.B concurrency <integer>
Specify a desired level of concurrency. Provided to the underlying
thread system as a hint. The default is not to provide any hint.
+.TP
+.B conn_max_pending <integer>
+Specify the maximum number of pending requests for an anonymous session.
+If requests are submitted faster than the server can process them, they
+will be queued up to this limit. If the limit is exceeded, the session
+is closed. The default is 100.
+.TP
+.B conn_max_pending_auth <integer>
+Specify the maximum number of pending requests for an authenticated session.
+The default is 1000.
.\".TP
.\".B debug <subsys> <level>
.\"Specify a logging level for a particular subsystem. The subsystems include