From 124aa454fbd5bfb6610bcfd51e4ea59aba6889d0 Mon Sep 17 00:00:00 2001
From: Feng Lee <ery.lee@gmail.com>
Date: Thu, 23 Feb 2017 16:53:47 +0800
Subject: [PATCH] Add 'mqtt.conn.force_gc_count' config to tune GC of MQTT
 connection

---
 etc/emq.conf    | 7 +++++++
 priv/emq.schema | 9 +++++++++
 2 files changed, 16 insertions(+)

diff --git a/etc/emq.conf b/etc/emq.conf
index f042bd279..4c3ab73c9 100644
--- a/etc/emq.conf
+++ b/etc/emq.conf
@@ -106,6 +106,13 @@ mqtt.max_clientid_len = 1024
 ## Max Packet Size Allowed, 64K by default.
 mqtt.max_packet_size = 64KB
 
+##--------------------------------------------------------------------
+## MQTT Connection
+##--------------------------------------------------------------------
+
+## Force GC: pos_integer
+mqtt.conn.force_gc_count = 100
+
 ##--------------------------------------------------------------------
 ## MQTT Client
 ##--------------------------------------------------------------------
diff --git a/priv/emq.schema b/priv/emq.schema
index 1e3ba1778..92ca118d2 100644
--- a/priv/emq.schema
+++ b/priv/emq.schema
@@ -316,6 +316,15 @@ end}.
    {max_packet_size,  cuttlefish:conf_get("mqtt.max_packet_size", Conf)}]
 end}.
 
+%%--------------------------------------------------------------------
+%% MQTT Connection
+%%--------------------------------------------------------------------
+
+%% @doc Force the client to GC: integer
+{mapping, "mqtt.conn.force_gc_count", "emqttd.conn_force_gc_count", [
+  {datatype, integer}
+]}.
+
 %%--------------------------------------------------------------------
 %% MQTT Client
 %%--------------------------------------------------------------------