从12月1日19:00（周二）到12月2日12:40（亚洲/首尔），网站反复显示错误页面。
下面是我们要了解的情况

Scaled Up at 20:32:27 on December 1st

01 Dec 2020 20:32:27.705158 <45>1 2020-12-01T11:32:24.494695+00:00 app api--Scaled to web@2:Performance-L by user metrics-team+apphs@heroku.com

H13 error occurs from 20:33:05 on December 1st
heroku router - - at=error code=H13 desc="Connection closed without response" method=HEAD dyno=web.2 connect=0ms service=25316ms status=503 bytes=0 protocol=http

我在没有源代码的情况下重新启动了dynos，现在可以正常工作了。
我们需要做些什么来防止这种情况发生吗？

<App Information>

Stack : heroku-16
Framework : Gradle (Spring)

<Log>

Dec 02, 2020 11:40:02 AM
sun.rmi.transport.tcp.TCPTransport$AcceptLoop executeAcceptLoop
WARNING: RMI TCP Accept-0: accept loop for ServerSocket[addr=0.0.0.0/0.0.0.0,localport=39378] throws
java.io.IOException: The server sockets created using the LocalRMIServerSocketFactory only accept connections from clients running on the host where the RMI remote objects have been exported.
at sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:114)
at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:405)
at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:377)

heroku router - - at=error code=H13 desc="Connection closed without response" method=HEAD dyno=web.2 connect=0ms service=25316ms status=503 bytes=0 protocol=http