etcdserver/api/v3compactor/periodic.go
func (pc *Periodic) Resume() {
	pc.mu.Lock()
	pc.paused = false
	pc.mu.Unlock()
}
func (pc *Periodic) Resume() {
	pc.mu.Lock()
	pc.paused = false
	pc.mu.Unlock()
}
// Resume resumes periodic compactor.