인프런 커뮤니티 질문&답변

안녕하세요 제로초님

덕분에 front배포 잘 하게 되었습니다.

그후 접속해서 테스트했는데, 회원가입할 때 connect_refused가 발생해 로그를 찾아보았습니다.

EADDRINUSE를 발견하고 원인을 찾으려고 뒤져봤는데 해결되지 않아 여쭤봅니다. ㅠ

front = 13.125.119.94 

back = 13.125.252.5

아래는 설정한 내용

/front/package.json

"scripts": {
    "dev": "next dev",
    "build": "cross-env ANALYZE=true NODE_ENV=production next build",
    "start": "cross-env NODE_ENV=production next start -p 80",
  },

/back/packge.json

"scripts": {
		"dev": "nodemon app",
		"start": "cross-env NODE_ENV=production pm2 start app.js"
	},

/back/app.js

// node에서는 import / export 안쓰고 require / module.exports 사용
const express = require('express');
const cors = require('cors');
const session = require('express-session');
const cookieParser = require('cookie-parser');
const passport = require('passport');
const dotenv = require('dotenv');
const morgan = require('morgan');
const path = require('path');
const hpp = require('hpp');
const helmet = require('helmet');

const postRouter = require('./routes/post');
const postsRouter = require('./routes/posts');
const userRouter = require('./routes/user');
const hashtahRouter = require('./routes/hashtag');
const db = require('./models'); // sequelize에서 model 모두 등록 // express에서 그 sequelize를 등록해야 한다.
const passportConfig = require('./passport');

dotenv.config();
const app = express();
db.sequelize
	.sync()
	.then(() => {
		console.log('db연결 성공!');
	})
	.catch(console.error);
passportConfig();

// 운영용 빌드
if (process.env.NOD_ENV === 'production') {
	app.use(morgan('combined')); // 로그볼 수 있게 해주는 것
	// 보안에 도움되는 패키지들
	app.use(hpp());
	app.use(helmet());
} else {
	app.use(morgan('dev')); // 로그볼 수 있게 해주는 것
}

app.use(
	cors({
		origin: ['http://localhost:3000', 'nodebird.com', 'http://13.125.119.94'], 
		credentials: true, 
	})
);

app.use('/', express.static(path.join(__dirname, 'uploads')));

app.use(express.urlencoded({ extended: true })); 
app.use(cookieParser(process.env.COOKIE_SECRET));
app.use(
	session({
		saveUninitialized: false,
		resave: false,

		secret: process.env.COOKIE_SECRET,
	})
);
app.use(passport.initialize());
app.use(passport.session());


app.use('/post', postRouter);
app.use('/posts', postsRouter);
app.use('/user', userRouter);
app.use('/hashtag', hashtahRouter);

app.listen(80, () => {
	console.log('서버 실행 중');
});

프론트 실행화면

백엔드 실행 화면

아래는 에러 내용입니다.

/front 에러

AxiosError: connect ECONNREFUSED 13.125.252.5:443
0|npm      |     at AxiosError.from (file:///home/ubuntu/react-nodebird/prepare/front/node_modules/axios/lib/core/AxiosError.js:89:14)
0|npm      |     at RedirectableRequest.handleRequestError (file:///home/ubuntu/react-nodebird/prepare/front/node_modules/axios/lib/adapters/http.js:610:25)
0|npm      |     at RedirectableRequest.emit (node:events:517:28)
0|npm      |     at eventHandlers.<computed> (/home/ubuntu/react-nodebird/prepare/front/node_modules/follow-redirects/index.js:38:24)
0|npm      |     at ClientRequest.emit (node:events:517:28)
0|npm      |     at TLSSocket.socketErrorListener (node:_http_client:501:9)
0|npm      |     at TLSSocket.emit (node:events:517:28)
0|npm      |     at emitErrorNT (node:internal/streams/destroy:151:8)
0|npm      |     at emitErrorCloseNT (node:internal/streams/destroy:116:3)
0|npm      |     at process.processTicksAndRejections (node:internal/process/task_queues:82:21)
0|npm      |     at Axios.request (file:///home/ubuntu/react-nodebird/prepare/front/node_modules/axios/lib/core/Axios.js:45:41)
0|npm      |     at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
0|npm      |     at async y (/home/ubuntu/react-nodebird/prepare/front/.next/server/chunks/414.js:1:1838) {
0|npm      |   port: 443,
0|npm      |   address: '13.125.252.5',
0|npm      |   syscall: 'connect',
0|npm      |   code: 'ECONNREFUSED',
0|npm      |   errno: -111,
0|npm      |   config: {
0|npm      |     transitional: {
0|npm      |       silentJSONParsing: true,
0|npm      |       forcedJSONParsing: true,
0|npm      |       clarifyTimeoutError: false
0|npm      |     },

 cause: Error: connect ECONNREFUSED 13.125.252.5:443
0|npm      |       at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1555:16) {
0|npm      |     errno: -111,
0|npm      |     code: 'ECONNREFUSED',
0|npm      |     syscall: 'connect',
0|npm      |     address: '13.125.252.5',
0|npm      |     port: 443
0|npm      |   }

back 에러

     | Warning: connect.session() MemoryStore is not
0|app      | designed for a production environment, as it will leak
0|app      | memory, and will not scale past a single process.
0|app      | Error: listen EADDRINUSE: address already in use /
0|app      |     at Server.setupListenHandle [as _listen2] (node:net:1800:21)
0|app      |     at listenInCluster (node:net:1865:12)
0|app      |     at Server.listen (node:net:1964:5)
0|app      |     at Function.listen (/home/ubuntu/react-nodebird/prepare/back/node_modules/express/lib/application.js:635:24)
0|app      |     at Object.<anonymous> (/home/ubuntu/react-nodebird/prepare/back/app.js:75:5)
0|app      |     at Module._compile (node:internal/modules/cjs/loader:1364:14)
0|app      |     at Module._extensions..js (node:internal/modules/cjs/loader:1422:10)
0|app      |     at Module.load (node:internal/modules/cjs/loader:1203:32)
0|app      |     at Module._load (node:internal/modules/cjs/loader:1019:12)
0|app      |     at Object.<anonymous> (/home/ubuntu/react-nodebird/prepare/back/node_modules/pm2/lib/ProcessContainerFork.js:33:23) {
0|app      |   code: 'EADDRINUSE',
0|app      |   errno: -98,
0|app      |   syscall: 'listen',
0|app      |   address: '/',
0|app      |   port: -1
0|app      | }

front monit

back monit

비슷한 질문들이 올라와 있어서 (sudo) npx pm2 kill 해보거나 다른 검색들을 해봤는데 원인을 모르겠더라구요

어떤 부분을 수정해야할지 어떤부분을 확인해봐야할지 봐주시면 정말 감사하겠습니다.