[SOLVED] Golang fatal error: concurrent map writes

The Problem: Suddenly got below errors which killed my daemon: fatal error: concurrent map writes goroutine 646 [running]: runtime.throw(0x75fd38, 0x15) /usr/local/go/src/runtime/panic.go:774 +0x72 fp=0xc000315e60 sp=0xc000315e30 pc=0x42ecf2 runtime.mapdelete_fast64(0x6f0800, 0xc00008ad50, 0x2b3e) goroutine 1 [sleep]: runtime.goparkunlock(...) /usr/local/go/src/runtime/proc.go:310 time.Sleep(0x12a05f200) /usr/local/go/src/runtime/time.go:105 +0x157 webhook/worker.Manager() goroutine 6 [IO wait]: internal/poll.runtime_pollWait(0x7fc308de6f08, 0x72, 0x0) /usr/local/go/src/runtime/netpoll.go:184 +0x55 internal/poll.(*pollDesc).wait(0xc000110018, 0x72, 0x0, 0x0, 0x75b00b) /usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45 internal/poll.(*pollDesc).waitRead(...) /usr/local/go/src/internal/poll/fd_poll_runtime.go:92 internal/poll.(*FD).Accept(0xc000110000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0) /usr/local/go/src/internal/poll/fd_unix....

February 4, 2020 · 3 min · Ashish Tiwari