presto-redis/src/main/java/io/prestosql/plugin/redis/RedisJedisManager.java/RedisJedisManager/getJedisPool
class RedisJedisManager:    public JedisPool getJedisPool(HostAddress host)
    {
        requireNonNull(host, "host is null");
        return jedisPoolCache.getUnchecked(host);
    }