add restart mqtt

coworker/restart_mqtt_service.sh

@@ -0,0 +1,8 @@
+# 重開
+
+# 0. kill pid
+kill -9 `cat mqtt_service_pid.txt`
+
+# 1. start
+/usr/bin/php /home/bigbang/apps/coworker/mqtt_service.php > /tmp/mqtt_service.log 2>&1&
+echo $! > mqtt_service_pid.txt