fix(websocket): use debug level for operational noise errors #3413
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#3364 migrated from zap to slog but accidentally changed the log level for http.Server.ErrorLog from implicit INFO to explicit ERROR. This caused client EOF and TLS handshake errors to spam error logs and stdout in apps which log only ERROR by default. These http.Server errors (client EOFs, TLS handshake failures from clients with naive TLS implementations, connection timeouts from clients that abort early) are normal operational noise, not actual server errors. Using LevelDebug: - matches semantic meaning (similar to existing connection timeout logs) - respects user's configured threshold (default ERROR filters them out) - allows users to enable for debugging via log level configuration Fixes ipfs/kubo#11027 Fixes ipfs/kubo#11033
MarcoPolo
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Oct 28, 2025
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Sorry for the noise!
We can ship a patch release with this
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@MarcoPolo thank you i'll try to review #3419 today/tomorrow and we likely want to wait for a release with both. |
This was referenced Nov 8, 2025
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@MarcoPolo this seems to be a regression in 0.44. FYSA this is blocking Kubo 0.39, any chance we could have a patch with this or maybe 0.45 is soon enough (week-two?)
Log refactor done in
migrated from zap to slog but accidentally changed the log level for
http.Server.ErrorLogfrom implicit INFO to explicit ERROR. This caused client EOF and TLS handshake errors to spam error logs and stdout in apps which log only ERROR by default.These
http.Servererrors (client EOFs, TLS handshake failures from clients with naive TLS implementations, connection timeouts from clients that abort early) are normal operational noise, not actual server errors.Rationale for using
LevelDebug:This PR helps with noise reported in: