저는 NVIDIA Deep Learning Institute에서 Jetson Nano 과정을 시작했습니다. 이를 위해서는 헤드리스 모드에서 브라우저를 통해 Nano에 연결하고 원격 JupyterLab 인터페이스를 통해 연결해야 합니다. Mozilla Firefox를 사용하여 Nano에서 실행 중인 Jupyter 서버에 로그인하려고 하는데 로그인 비밀번호를 반복적으로 요청합니다. Chrome에서도 비슷한 일이 발생합니다. 노트북에 입력했지만 계속해서 다음 메시지와 함께 '서버 연결 오류'를 보냅니다.
Jupyter 서버에 대한 연결을 설정할 수 없습니다. JupyterLab은 계속해서 다시 연결을 시도합니다. 네트워크 연결이나 Jupyter 서버 구성을 확인하세요.
Chrome에 연결하려고 하면 브라우저 콘솔에 다음 메시지 로그가 표시됩니다.
vendors~main.4184bdce490c13d11f74.js:144505 Download the React DevTools for a better development experience: https://fb.me/react-devtools
vendors~main.4184bdce490c13d11f74.js:164508 Starting application in workspace: /lab
:8888/lab/api/workspaces/lab?1563387693000:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/metrics?1563387692942:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/terminals?1563387692023:1 Failed to load resource: net::ERR_NETWORK_CHANGED
vendors~main.4184bdce490c13d11f74.js:168401 Uncaught (in promise) TypeError: Failed to fetch
vendors~main.4184bdce490c13d11f74.js:168016 Uncaught (in promise) TypeError: Cannot read property 'reject' of null
at Object.<anonymous> (vendors~main.4184bdce490c13d11f74.js:168016)
at Generator.next (<anonymous>)
at fulfilled (vendors~main.4184bdce490c13d11f74.js:167716)
vendors~main.4184bdce490c13d11f74.js:168016 Uncaught (in promise) TypeError: Cannot read property 'reject' of null
at Object.<anonymous> (vendors~main.4184bdce490c13d11f74.js:168016)
at Generator.next (<anonymous>)
at fulfilled (vendors~main.4184bdce490c13d11f74.js:167716)
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 1s
:8888/api/sessions?1563387717828:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/terminals?1563387717832:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
lab:1 Uncaught (in promise) TypeError: Failed to fetch
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 2s
:8888/api/sessions?1563387737829:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
:8888/api/terminals?1563387737833:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/lab/api/workspaces/lab?1563387734525:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
vendors~main.4184bdce490c13d11f74.js:168401 Uncaught (in promise) TypeError: Failed to fetch
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 4s
:8888/api/terminals?1563387757845:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/sessions?1563387757830:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/contents/?content=1&1563387763199:1 Failed to load resource: net::ERR_NETWORK_CHANGED
vendors~main.4184bdce490c13d11f74.js:45867 Showing error: TypeError: Failed to fetch
showErrorMessage @ vendors~main.4184bdce490c13d11f74.js:45867
lab:1 Uncaught (in promise) TypeError: Failed to fetch
lab:1 Uncaught (in promise) TypeError: Failed to fetch
vendors~main.4184bdce490c13d11f74.js:228372 Terminal reconnected
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 1s
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 2s
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 4s
vendors~main.4184bdce490c13d11f74.js:228372 Terminal reconnected
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 1s
:8888/api/sessions?1563387847816:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/terminals?1563387847820:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
lab:1 Uncaught (in promise) TypeError: Failed to fetch
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 2s
:8888/api/contents/?content=1&1563387864177:1 Failed to load resource: net::ERR_NETWORK_CHANGED
vendors~main.4184bdce490c13d11f74.js:45867 Showing error: TypeError: Failed to fetch
showErrorMessage @ vendors~main.4184bdce490c13d11f74.js:45867
:8888/api/sessions?1563387867805:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/terminals?1563387867807:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
lab:1 Uncaught (in promise) TypeError: Failed to fetch
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 4s
vendors~main.4184bdce490c13d11f74.js:228372 Terminal reconnected
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 1s
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
:8888/api/sessions?1563388047775:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
:8888/api/terminals?1563388047780:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
:8888/api/contents/?content=1&1563388052148:1 Failed to load resource: net::ERR_NETWORK_CHANGED
vendors~main.4184bdce490c13d11f74.js:45867 Showing error: TypeError: Failed to fetch
showErrorMessage @ vendors~main.4184bdce490c13d11f74.js:45867
:8888/api/kernelspecs?1563388053775:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
vendors~main.4184bdce490c13d11f74.js:228264 Uncaught (in promise) DOMException: Failed to execute 'send' on 'WebSocket': Still in CONNECTING state.
at http://192.168.55.1:8888/lab/static/vendors~main.4184bdce490c13d11f74.js:228264:24
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 2s
:8888/api/sessions?1563388077778:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
:8888/api/terminals?1563388077788:1 Failed to load resource: net::ERR_NETWORK_CHANGED
lab:1 Uncaught (in promise) TypeError: Failed to fetch
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 4s
vendors~main.4184bdce490c13d11f74.js:228372 Terminal reconnected
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 1s
:8888/api/sessions?1563388367726:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/terminals?1563388367730:1 Failed to load resource: net::ERR_NETWORK_CHANGED
:8888/api/contents/?content=1&1563388370099:1 Failed to load resource: net::ERR_NETWORK_CHANGED
vendors~main.4184bdce490c13d11f74.js:45867 Showing error: TypeError: Failed to fetch
showErrorMessage @ vendors~main.4184bdce490c13d11f74.js:45867
lab:1 Uncaught (in promise) TypeError: Failed to fetch
lab:1 Uncaught (in promise) TypeError: Failed to fetch
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 2s
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
vendors~main.4184bdce490c13d11f74.js:228375 Terminal reconnect failed Event
(anonymous) @ vendors~main.4184bdce490c13d11f74.js:228375
vendors~main.4184bdce490c13d11f74.js:228347 Terminal websocket closed: 1006
socket.onclose @ vendors~main.4184bdce490c13d11f74.js:228347
vendors~main.4184bdce490c13d11f74.js:228363 Terminal will attempt to reconnect in 4s
vendors~main.4184bdce490c13d11f74.js:228372 Terminal reconnected
manager.js:36 [Violation] 'setInterval' handler took 68ms
default.js:195 Terminal websocket closed: 1006
socket.onclose @ default.js:195
default.js:211 Terminal will attempt to reconnect in 1s
default.js:195 Terminal websocket closed: 1006
socket.onclose @ default.js:195
default.js:211 Terminal will attempt to reconnect in 1s
manager.js:43 [Violation] 'setInterval' handler took 71ms
serverconnection.js:192 GET http://192.168.55.1:8888/api/contents/?content=1&1563388601068 net::ERR_NETWORK_CHANGED
handleRequest @ serverconnection.js:192
makeRequest @ serverconnection.js:75
get @ index.js:457
get @ index.js:153
(anonymous) @ model.js:231
fulfilled @ model.js:6
Promise.then (async)
step @ model.js:8
(anonymous) @ model.js:9
push.MM3R.__awaiter @ model.js:5
cd @ model.js:208
refresh @ model.js:198
(anonymous) @ model.js:545
dialog.js:32 Showing error: TypeError: Failed to fetch
showErrorMessage @ dialog.js:32
_onConnectionFailure @ browser.js:206
invokeSlot @ index.js:475
emit @ index.js:433
push.qUp9.Signal.emit @ index.js:106
(anonymous) @ model.js:263
Promise.catch (async)
(anonymous) @ model.js:253
fulfilled @ model.js:6
Promise.then (async)
step @ model.js:8
(anonymous) @ model.js:9
push.MM3R.__awaiter @ model.js:5
cd @ model.js:208
refresh @ model.js:198
(anonymous) @ model.js:545
serverconnection.js:192 GET http://192.168.55.1:8888/api/kernelspecs?1563388602694 net::ERR_NETWORK_CHANGED
handleRequest @ serverconnection.js:192
makeRequest @ serverconnection.js:75
getSpecs @ default.js:1206
getSpecs @ default.js:1074
getSpecs @ kernel.js:41
_refreshSpecs @ manager.js:284
(anonymous) @ manager.js:48
serverconnection.js:102 Uncaught (in promise) TypeError: Failed to fetch
NetworkError @ serverconnection.js:102
(anonymous) @ serverconnection.js:194
Promise.then (async)
_refreshSpecs @ manager.js:284
(anonymous) @ manager.js:48
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/2' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
_initializeSocket @ default.js:156
(anonymous) @ default.js:218
default.js:223 Terminal reconnect failed Event {isTrusted: true, type: "error", target: WebSocket, currentTarget: WebSocket, eventPhase: 2, …}
(anonymous) @ default.js:223
Promise.catch (async)
(anonymous) @ default.js:222
setTimeout (async)
_reconnectSocket @ default.js:214
socket.onclose @ default.js:196
default.js:195 Terminal websocket closed: 1006
socket.onclose @ default.js:195
default.js:211 Terminal will attempt to reconnect in 2s
default.js:165 WebSocket connection to 'ws://192.168.55.1:8888/terminals/websocket/1' failed: Error in connection establishment: net::ERR_CONNECTION_TIMED_OUT
(anonymous) @ default.js:165
_initializeSocket @ default.js:156
(anonymous) @ default.js:218
default.js:223 Terminal reconnect failed Event {isTrusted: true, type: "error", target: WebSocket, currentTarget: WebSocket, eventPhase: 2, …}
(anonymous) @ default.js:223
Promise.catch (async)
(anonymous) @ default.js:222
setTimeout (async)
_reconnectSocket @ default.js:214
socket.onclose @ default.js:196
default.js:195 Terminal websocket closed: 1006
socket.onclose @ default.js:195
default.js:211 Terminal will attempt to reconnect in 2s
default.js:220 Terminal reconnected
default.js:220 Terminal reconnected