Collection
Iterator
while(jedis.hasNext()){
jedis.next().select(redisIndex);
}
ShardedJedisPipeline pipeline = shardedJedis.pipelined();
if (fields.length > 0) {
for (int i = 0; i < fields.length; i++) {
pipeline.hset(key,fields[i],values[i]);
}
pipeline.sync();
}