Vitor Enes 702a3ebd32 Deduplicate multiplexer detection errors over 1-minute windows (#20694) ... * Deduplicate multiplexer detection errors over 1-minute windows This commit deduplicates errors returned by `Mux.detect` (which detects the type of a new connection just established) over 1-minute windows. This ensures that health checkers / malicious actors cannot pollute / overpower the logs with warnings when such connections are invalid or unknown to the multiplexer. * Improve error message * Fix lint * Add `TestErrorDeduplicator` * Multi-line Sprintf * ErrorDeduplicator -> LogLimiter * Improve `LogLimiter.Log` API * Fix typo * Remove `windowInfo` * Improve test assertions * Use new log limiter API * Remove unnecessary append Co-authored-by: Alan Parra <alan.parra@goteleport.com> * Fix `toLogMessages` * Start log limiter in `Mux.New` * Use public API in tests * Make `Config` field private * Improve godoc * Remove channel size from log limiter config * Use `assert` instead of `require` for log assertions * Revert "Start log limiter in `Mux.New`" This reverts commit 3554daa6db. * Use mutex instead of `entryCh` * Start log limiter goroutine in `loglimit.New` * Use `context.Background` as default. Co-authored-by: Alan Parra <alan.parra@goteleport.com> --------- Co-authored-by: Alan Parra <alan.parra@goteleport.com>		2023-03-08 20:32:44 +00:00
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loglimit.go	Deduplicate multiplexer detection errors over 1-minute windows (#20694)	2023-03-08 20:32:44 +00:00
loglimit_test.go	Deduplicate multiplexer detection errors over 1-minute windows (#20694)	2023-03-08 20:32:44 +00:00