我想将一个javardd存储为每小时分区的序列文件，有什么方法可以实现吗？
例如：
我有以下类型的记录：

time,a1,a2,a3,a4,a5,a6,a7,a8

我想把键设为a2，a3，a4，值设为这个键和分区列中的所有值。
在hdfs中，它将存储为：

output/time=12345/sequence_file_of_key_and_values

Sample input:
1486203462,1,45,66,77,ansh,72,976,58
1486203461,1,452,66,77,ansh5,456,8754,09865
1486203462,1,45,66,77,ansh9,772,976,5890
1486203461,1,452,66,77,ansh156,742,96,5951

输出如下：

output/time=1486203462/a sequence file with key as (1,45,66,77) and corresponding values as ((1486203462,1,45,66,77,ansh,72,976,58),
1486203462,1,45,66,77,ansh9,772,976,5890))

output/time=1486203461/a sequence file with key as (1,452,66,77) and corresponding values as ((1486203461,1,452,66,77,ansh5,456,8754,09865),(1486203461,1,452,66,77,ansh156,742,96,5951))