RTC: Support circuit breaker. 4.0.103

trunk/conf/full.conf

@@ -111,6 +111,37 @@ auto_reload_for_docker on;
 # default: 0.8
 tcmalloc_release_rate 0.8;
 
+# For system circuit breaker.
+circuit_breaker {
+    # Whether enable the circuit breaker.
+    # Default: on
+    enabled on;
+    # The CPU percent(0, 100) ever 1s, as system high water-level, which enable the circuit-break
+    # mechanism, for example, NACK will be disabled if high water-level.
+    # Default: 90
+    high_threshold 90;
+    # Reset the high water-level, if number of pulse under high_threshold.
+    # @remark 0 to disable the high water-level.
+    # Default: 2
+    high_pulse 2;
+    # The CPU percent(0, 100) ever 1s, as system critical water-level, which enable the circuit-break
+    # mechanism, for example, TWCC will be disabled if high water-level.
+    # @note All circuit-break mechanism of high-water-level scope are enabled in critical.
+    # Default: 95
+    critical_threshold 95;
+    # Reset the critical water-level, if number of pulse under critical_threshold.
+    # @remark 0 to disable the critical water-level.
+    # Default: 1
+    critical_pulse 1;
+    # If dying, also drop packets for players.
+    # Default: 99
+    dying_threshold 99;
+    # If CPU exceed the dying_pulse times, enter dying.
+    # @remark 0 to disable the dying water-level.
+    # Default: 5
+    dying_pulse 5;
+}
+
 #############################################################################################
 # heartbeat/stats sections
 #############################################################################################