SocketError/UND_ERR_SOCKET error - TBD

[tcompa]

I observed this error in the fractal-web logs once, and @jluethi observed one that looks the same (on a different instance):

2024-09-27 12:51:54,195 - (hooks) - INFO - [GET] - /
2024-09-27 12:51:55,339 - (hooks) - INFO - [GET] - /auth/login
2024-09-27 12:51:59,820 - (hooks) - INFO - [POST] - /auth/login
2024-09-27 12:52:00,102 - (auth API) - WARN - Login failed
2024-09-27 12:52:03,758 - (hooks) - INFO - [POST] - /auth/login
2024-09-27 12:52:04,061 - (hooks) - INFO - [GET] - /v2/projects
2024-09-27 12:52:06,301 - (hooks) - INFO - [GET] - /profile
2024-09-27 12:52:10,281 - (hooks) - INFO - [GET] - /v2/admin
2024-09-27 12:52:12,547 - (hooks) - INFO - [GET] - /v2/admin/groups
2024-09-27 12:52:14,302 - (hooks) - INFO - [GET] - /v2/admin/groups/1/edit
2024-09-27 12:52:17,550 - (hooks) - INFO - [GET] - /v2/admin/groups
2024-09-27 12:52:19,819 - (proxy) - INFO - [POST] - /auth/group/
2024-09-27 12:52:19,837 - (hooks) - INFO - [GET] - /v2/admin/groups/2/edit
2024-09-27 12:52:22,186 - (hooks) - INFO - [GET] - /v2/admin/groups
2024-09-27 12:52:24,201 - (hooks) - INFO - [GET] - /v2/admin/groups/2
2024-09-27 12:52:24,203 - (hooks) - FATAL - Error loading server info TypeError: fetch failed
    at Object.fetch (node:internal/deps/undici/undici:11457:11) {
  cause: SocketError: other side closed
      at Socket.onSocketEnd (/home/tommaso/Fractal/fractal-web/node_modules/undici/lib/client.js:1118:22)
      at Socket.emit (node:events:525:35)
      at endReadableNT (node:internal/streams/readable:1359:12)
      at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
    code: 'UND_ERR_SOCKET',
    socket: {
      localAddress: '127.0.0.1',
      localPort: 58992,
      remoteAddress: undefined,
      remotePort: undefined,
      remoteFamily: undefined,
      timeout: undefined,
      bytesWritten: 5025,
      bytesRead: 492
    }
  }
}
2024-09-27 12:52:24,237 - (hooks) - INFO - [GET] - /
2024-09-27 12:52:24,270 - (hooks) - INFO - [GET] - /
2024-09-27 12:52:25,759 - (hooks) - INFO - [GET] - /v2/admin/groups
2024-09-27 12:52:26,937 - (hooks) - INFO - [GET] - /v2/admin/groups/2
2024-09-27 12:52:29,991 - (hooks) - INFO - [GET] - /v2/admin/groups
2024-09-27 12:52:33,269 - (proxy) - INFO - [POST] - /auth/group/

Here are, for context, some combined frontend/backend logs

BACKEND  2024-09-27 14:52:22,187 - uvicorn.access - INFO - 127.0.0.1:58992 - "GET /api/alive/ HTTP/1.1" 200
BACKEND  2024-09-27 14:52:22,193 - uvicorn.access - INFO - 127.0.0.1:59002 - "GET /auth/current-user/?group_names=false HTTP/1.1" 200
BACKEND  2024-09-27 14:52:22,198 - uvicorn.access - INFO - 127.0.0.1:58992 - "GET /auth/group/?user_ids=true HTTP/1.1" 200
FRONTEND 2024-09-27 12:52:24,201 - (hooks) - INFO - [GET] - /v2/admin/groups/2
FRONTEND 2024-09-27 12:52:24,203 - (hooks) - FATAL - Error loading server info TypeError: fetch failed
BACKEND  2024-09-27 14:52:24,238 - uvicorn.access - INFO - 127.0.0.1:59012 - "GET /api/alive/ HTTP/1.1" 200
BACKEND  2024-09-27 14:52:24,246 - uvicorn.access - INFO - 127.0.0.1:59022 - "GET /auth/current-user/?group_names=false HTTP/1.1" 200
BACKEND  2024-09-27 14:52:24,272 - uvicorn.access - INFO - 127.0.0.1:59012 - "GET /api/alive/ HTTP/1.1" 200