I’m not sure what happened, but I observed this very concerning behaviour on new connections from 11:10-11:20 PST on traffic that should have running out of Seattle.
- Existing websocket connections worked.
- Any new connections would time out. ping would show 10 ms. curl would hang and not open the page.
- I checked from three different machines and two distinct ip addresses.
- We are nowhere close to softlimit or hardlimit.
The following are log entries that show the timed out requests actually make it to the backend. I have not included the existing websocket connections which worked correctly.
2022-08-03T12:33:20.790 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":334.173,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{"id":"3"},"path":"REDACTED","pid":"#PID<0.3222.0>","request_id":"FwfVvisnviuvtScAAA_x","status":200,"time":"2022-08-03T12:33:20.788743Z","user_id":8}
2022-08-03T18:15:29.811 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1301.2,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4796.0>","request_id":"FwfoabqFpi3NacYAABKh","status":200,"time":"2022-08-03T18:15:29.809085Z","user_id":8}
2022-08-03T18:15:53.484 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1298.474,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4800.0>","request_id":"Fwfobz3E2vNkc8QAABMx","status":200,"time":"2022-08-03T18:15:53.483158Z","user_id":8}
2022-08-03T18:15:57.050 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":22.594,"guid":"3840806c-ad65-45e7-96e7-ea7f42ff1a28","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4802.0>","request_id":"FwfocF5aQNHxEqwAABOR","status":200,"time":"2022-08-03T18:15:57.048901Z"}
2022-08-03T18:16:47.332 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":24.982,"guid":"5d2833f6-f232-486b-a303-b4fcd33eb614","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4807.0>","request_id":"FwfofBM27hzHTLUAABPh","status":200,"time":"2022-08-03T18:16:47.330283Z"}
2022-08-03T18:16:53.294 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1161.323,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4811.0>","request_id":"FwfofTLjXWYAAv4AABQx","status":200,"time":"2022-08-03T18:16:53.292997Z","user_id":8}
2022-08-03T18:17:44.122 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1166.828,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4818.0>","request_id":"FwfoiQgkw2pbgPYAABVR","status":200,"time":"2022-08-03T18:17:44.120995Z","user_id":8}
2022-08-03T18:18:01.360 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1436.48,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4821.0>","request_id":"FwfojPtz1a3vDLgAABWx","status":200,"time":"2022-08-03T18:18:01.357572Z","user_id":8}
2022-08-03T18:18:18.699 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1352.14,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"REDACTED","pid":"#PID<0.4824.0>","request_id":"FwfokQoR0Ju3fJkAABbR","status":200,"time":"2022-08-03T18:18:18.699022Z","user_id":8}
2022-08-03T18:18:30.653 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":20.785,"guid":"3840806c-ad65-45e7-96e7-ea7f42ff1a28","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4827.0>","request_id":"FwfolCHidM3rKa8AABbx","status":200,"time":"2022-08-03T18:18:30.651424Z"}
2022-08-03T18:19:18.132 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":763.878,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4834.0>","request_id":"FwfonwOJJBNs0_oAABdx","status":200,"time":"2022-08-03T18:19:18.130693Z","user_id":8}
2022-08-03T18:19:18.725 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":1357.279,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"REDACTED","pid":"#PID<0.4835.0>","request_id":"FwfonwOT_GgTd6MAABeB","status":200,"time":"2022-08-03T18:19:18.724786Z","user_id":8}
2022-08-03T18:19:51.407 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":22.718,"guid":"b81eec14-3a09-4011-892e-74a77ede659f","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4840.0>","request_id":"Fwfopu8jK292Z0YAABgh","status":200,"time":"2022-08-03T18:19:51.406342Z"}
2022-08-03T18:21:09.349 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":24.753,"guid":"268789a9-9153-4e38-b7eb-125888a801b7","ip":"REDACTED2","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4870.0>","request_id":"FwfouRSstR3Czs8AABnR","status":200,"time":"2022-08-03T18:21:09.347567Z"}
2022-08-03T18:21:31.961 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":895.593,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4874.0>","request_id":"FwfoviSI46gJJCYAABqR","status":200,"time":"2022-08-03T18:21:31.959326Z","user_id":8}
2022-08-03T18:21:38.043 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":23.013,"guid":"3840806c-ad65-45e7-96e7-ea7f42ff1a28","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4882.0>","request_id":"Fwfov8MhnAjba0EAABsx","status":200,"time":"2022-08-03T18:21:38.042525Z"}
2022-08-03T18:23:00.714 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":83.895,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4909.0>","request_id":"Fwfo0v8Dt9vPA8MAABwh","status":200,"time":"2022-08-03T18:23:00.712459Z","user_id":8}
2022-08-03T18:28:49.487 app[fbcb5e54] sea [info] {"app":"APPNAME","duration":761.722,"guid":"eba7d3d0-25b4-4e2e-a6ea-587d726103c6","ip":"REDACTED1","level":"info","method":"GET","mfa":"StructuredLogger.Plugs.Logger.call/2","params":{},"path":"/","pid":"#PID<0.4961.0>","request_id":"FwfpJAsXJX3qsQcAAB-h","status":200,"time":"2022-08-03T18:28:49.485930Z","user_id":8}