etcdserver/api/rafthttp/peer.go
func (p *peer) Pause() {
	p.mu.Lock()
	defer p.mu.Unlock()
	p.paused = true
	p.msgAppReader.pause()
	p.msgAppV2Reader.pause()
}
func (p *peer) Pause() {
	p.mu.Lock()
	defer p.mu.Unlock()
	p.paused = true
	p.msgAppReader.pause()
	p.msgAppV2Reader.pause()
}
// Pause pauses the peer. The peer will simply drops all incoming
// messages without returning an error.