Race between connArray.Get() and connArray.Close()

[youjiali1995]

connArray.Get() reads v[] without lock

client-go/internal/client/client.go

Lines 230 to 233 in c7fbfc2

	func (a *connArray) Get() *grpc.ClientConn {
	next := atomic.AddUint32(&a.index, 1) % uint32(len(a.v))
	return a.v[next]
	}

and connArray.Close() may modify it in the recycleIdleConnArray goroutine

client-go/internal/client/client.go

Line 244 in c7fbfc2

a.v[i] = nil

[youjiali1995]

Fixed by #465