배포 서버(백엔드)에서 발생하는 포트 에러를 한번 봐주시면 감사여

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삭제된 글입니다

terecal · Answer

다시 주소로 접속해서 아래 명령어를 이용해 서버를 실행했더니 된거 같아여  sudo npx pm2 start npm -- start 서버 킬은 sudo npx pm2 kill

제로초(조현영) · Answer

pm2가 실행되고 있는 것 아닌가요? npx pm2 list pm2가 실행되고 있으면 서버를 꺼도 pm2가 다시 되살립니다. pm2가 실행되고 있는 상태에서는 pm2를 종료(npx pm2 kill)하고 다시 시작하든지 아니면 npx pm2 reload all로 재부팅만 하면 됩니다.

terecal · Answer

포트 끄기 명령어로 포트를 꺼도 포트가 계속 다른 번호로 검색되여 포트가 자동으로 실행되고 있는걸까여? root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# kill -9 12294 root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# lsof -i tcp:80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 12959 root 20u IPv6 123574 0t0 TCP *:http (LISTEN) root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# kill -9 12959 root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# kill -9 12959 bash: kill: (12959) - No such process root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# lsof -i tcp:80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 12992 root 20u IPv6 123722 0t0 TCP *:http (LISTEN) root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# kill -9 12992 root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# clear root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# lsof -i tcp:80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 13025 root 20u IPv6 123863 0t0 TCP *:http (LISTEN) root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# kill -9 13025 root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# lsof -i tcp:80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 13059 root 20u IPv6 124008 0t0 TCP *:http (LISTEN) root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# kill -9 13059 root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# npx start npx: installed 1 in 1.724s command not found: start root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back# npm start > back@1.0.0 start /home/ubuntu/react-nodebird/back > node app events.js:292 throw er; // Unhandled 'error' event ^ Error: listen EADDRINUSE: address already in use :::80 at Server.setupListenHandle [as _listen2] (net.js:1318:16) at listenInCluster (net.js:1366:12) at Server.listen (net.js:1452:7) at Function.listen (/home/ubuntu/react-nodebird/back/node_modules/express/lib/application.js:618:24) at Object.<anonymous> (/home/ubuntu/react-nodebird/back/app.js:84:5) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) at Module.load (internal/modules/cjs/loader.js:928:32) at Function.Module._load (internal/modules/cjs/loader.js:769:14) at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12) Emitted 'error' event on Server instance at: at emitErrorNT (net.js:1345:8) at processTicksAndRejections (internal/process/task_queues.js:80:21) { code: 'EADDRINUSE', errno: -98, syscall: 'listen', address: '::', port: 80 } npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! back@1.0.0 start: `node app` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the back@1.0.0 start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR! /root/.npm/_logs/2020-10-26T03_07_41_018Z-debug.log root@ip-172-31-37-235:/home/ubuntu/react-nodebird/back#

제로초(조현영) · Answer

이미 80번 포트에 서버를 실행했는데 그걸 끄지않고 하나더 실행하려고 하신 것 같습니다. lsof -i tcp:80 으로 80번 포트를 사용하는서비스의 프로세스아이디를 찾고 kill -9 프로세스아이디 하면 꺼집니다.