const Redis = require('ioredis');const r1 = new Redis({	port: 6379,	host: '192.168.1.1',	password: '123456',	db: 0,	keyPrefix: '',});r2 = new Redis({	port: 6379,	host: '192.168.1.2',	password: '123456',	db: 0,	keyPrefix: '',});(async () => {	let keys = await r1.keys('*');	for (key of keys) {		let key_type = await r1.type(key);		if (key_type == 'string') {			await r2.set(key, await r1.get(key));		}		else if (key_type == 'hash') {			await r2.hmset(key, await r1.hgetall(key));		}		else if (key_type == 'zset') {			let arr = await r1.zrange(key, 0, -1, 'WITHSCORES');			for (let i=0; i