[GH-ISSUE #253] Random failures while connecting to frontail #160

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opened 2026-03-03 16:05:44 +03:00 by kerem · 1 comment

kerem commented

2026-03-03 16:05:44 +03:00

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Originally created by @pmulgaonkar on GitHub (Mar 29, 2023).
Original GitHub issue: https://github.com/mthenw/frontail/issues/253

Have frontail configured as per instructions behind nginx. But I randomly (about 50%) get errors connecting. Nginx error log says:
2023/03/29 22:32:52 [error] 183900#0: *52 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.1.25, server: 192.168.1.37, request: "GET /frontail/socket.io/?EIO=3&transport=websocket HTTP/1.1", upstream: "http://127.0.0.1:9001/frontail/socket.io/?EIO=3&transport=websocket", host: "192.168.1.37

Cannot figure out why this works sometimes not at other times. Any tips?

Originally created by @pmulgaonkar on GitHub (Mar 29, 2023). Original GitHub issue: https://github.com/mthenw/frontail/issues/253 Have frontail configured as per instructions behind nginx. But I randomly (about 50%) get errors connecting. Nginx error log says: 2023/03/29 22:32:52 [error] 183900#0: *52 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.1.25, server: 192.168.1.37, request: "GET /frontail/socket.io/?EIO=3&transport=websocket HTTP/1.1", upstream: "http://127.0.0.1:9001/frontail/socket.io/?EIO=3&transport=websocket", host: "192.168.1.37 Cannot figure out why this works sometimes not at other times. Any tips?

kerem closed this issue

2026-03-03 16:05:44 +03:00

kerem commented

2026-03-03 16:05:45 +03:00

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@pmulgaonkar commented on GitHub (Mar 31, 2023):

Found the cause (I think). In case this is useful to someone else in the future:
Frontail needs a few seconds to initialize it's listener. I was starting the frontail server and then immediately trying to connect to it. A 5 second delay solved the issue.

@pmulgaonkar commented on GitHub (Mar 31, 2023): Found the cause (I think). In case this is useful to someone else in the future: Frontail needs a few seconds to initialize it's listener. I was starting the frontail server and then immediately trying to connect to it. A 5 second delay solved the issue.