请求偶尔会报这个错误 Cannot read property 'send' of undefined
[2021-07-23 16:35:19.137] [cfork:master:28480] worker:23272 exit (code: null, exitedAfterDisconnect: true, state: dead, isDead: true, isExpected: true, worker.disableRefork: false)
[2021-07-23 16:35:19.754] [cfork:master:28480] master uncaughtException: TypeError: Cannot read property 'send' of undefined
    at Server.<anonymous> (D:\A-EGG\node_modules\_egg-cluster@1.27.0@egg-cluster\lib\master.js:219:16)
    at Server.emit (events.js:310:20)
    at TCP.onconnection (net.js:1558:8)
TypeError: Cannot read property 'send' of undefined
    at Server.<anonymous> (D:\A-EGG\node_modules\_egg-cluster@1.27.0@egg-cluster\lib\master.js:219:16)
    at Server.emit (events.js:310:20)
    at TCP.onconnection (net.js:1558:8)