hdfs memory test

Data Format

Storage format	TEXTFILE	SequenceFile	RCfile	Euro	Parquet	ORC
Data size	65G	67G	61.5G	68.2 G	28.9 G	8.3G
load hive use times	286.319 seconds	118.45 seconds	106.212 seconds	163.988 seconds	136.663 seconds	130.186 seconds

CREATE TABLE IF NOT EXISTS prod_purchased_txt(
    uid            string,
    event_time      bigint,
    touch_point_id   string,
    et_city  string,
et_city_tier  string,
et_has_gifts  boolean,
et_has_points  boolean,
et_order_discount  float,
et_order_list_value  float,
et_order_quantity  float,
et_order_type  string,
et_order_value  float,
et_pay_mode  string,
et_prod_brand_list  array<string>,
et_prod_cate_name_list  array<string>,
et_prod_id_list  array<string>,
et_prod_list_price_list  array<float>,
et_prod_name_list  array<string>,
et_prod_quantity_list  array<float>,
et_province  string,
et_purchase_date_type  string
)
ROW FORMAT DELIMITED
  FIELDS TERMINATED BY '\t'
  LINES TERMINATED BY '\n'
STORED AS TEXTFILE;

REATE TABLE IF NOT EXISTS prod_purchased_orc(
    uid            string,
    event_time      bigint,
    touch_point_id   string,
    et_city  string,
et_city_tier  string,
et_has_gifts  boolean,
et_has_points  boolean,
et_order_discount  float,
et_order_list_value  float,
et_order_quantity  float,
et_order_type  string,
et_order_value  float,
et_pay_mode  string,
et_prod_brand_list  array<string>,
et_prod_cate_name_list  array<string>,
et_prod_id_list  array<string>,
et_prod_list_price_list  array<float>,
et_prod_name_list  array<string>,
et_prod_quantity_list  array<float>,
et_province  string,
et_purchase_date_type  string
)partitioned by (process_date string)
ROW FORMAT DELIMITED
  FIELDS TERMINATED BY '\t'
  LINES TERMINATED BY '\n'
STORED AS ORC ;

======================================
STORED AS SequenceFile;
STORED AS RCfile ;
STORED AS Avro ;
STORED AS parquetfile ;
STORED AS ORC ;

Only text support load, import the data into other can insert

load data local inpath '/home/hadoop/prod_purchased.txt' into table prod_purchased_txt ;
insert into table prod_purchased_sq partition(process_date = '2019-06-01') select * from prod_purchased_txt;