Data science Software Course Training in Ameerpet Hyderabad

Data science Software Course Training in Ameerpet Hyderabad

Friday, 24 June 2016

Hive Lab4 : Bucketing Tables

hive> create database bucks;
OK
Time taken: 1.775 seconds
hive> use bucks;
OK
Time taken: 0.022 seconds
hive> create table sales(pid string, pr int)
    > row format delimited  
    >   fields terminated by ',';
OK
Time taken: 0.364 seconds
hive> load data local inpath 'sales' 
    >   into table sales;
Copying data from file:/home/training/sales
Copying file: file:/home/training/sales
Loading data to table bucks.sales
OK
Time taken: 0.187 seconds
hive> 

hive> create table buckstab(pid string, 
    >   pr int)
    >  clustered by (pid)
    > into 3 buckets;
OK
Time taken: 0.051 seconds
hive> 

loading data into buckets.

hive> set hive.enforce.bucketing=true;
hive> insert overwrite table buckstab
    >   select * from sales;

[training@localhost ~]$ hadoop fs -ls /user/hive/warehouse/bucks.db/sales
Found 1 items
-rw-r--r--   1 training supergroup        185 2016-06-21 07:35 /user/hive/warehouse/bucks.db/sales/sales
[training@localhost ~]$ hadoop fs -ls /user/hive/warehouse/bucks.db/buckstab
Found 3 items
-rw-r--r--   1 training supergroup         62 2016-06-21 07:40 /user/hive/warehouse/bucks.db/buckstab/000000_0
-rw-r--r--   1 training supergroup         35 2016-06-21 07:40 /user/hive/warehouse/bucks.db/buckstab/000001_0
-rw-r--r--   1 training supergroup         88 2016-06-21 07:40 /user/hive/warehouse/bucks.db/buckstab/000002_0
[training@localhost ~]$ 






5 comments:

  1. sir pls provide some more information and entire class nodes , what exactly telling that total information is we need

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  2. This comment has been removed by the author.

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  3. hello sir can you please provide the date wise class ,we need total information like explanation needed

    ReplyDelete
  4. hi sir, plz provide the information like what is the content of sales file and sales table data, then by seeing everyone can understand easily

    ReplyDelete
  5. Good Post! Thank you so much for sharing this pretty post, it was so good to read and useful to improve my knowledge as updated one, keep blogging.
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    ReplyDelete