Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the becustom domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home4/joyplace/public_html/wp-includes/functions.php on line 6114

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wordpress-seo domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home4/joyplace/public_html/wp-includes/functions.php on line 6114

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893

Warning: Cannot modify header information - headers already sent by (output started at /home4/joyplace/public_html/wp-includes/functions.php:6114) in /home4/joyplace/public_html/wp-includes/rest-api/class-wp-rest-server.php on line 1893
{"id":1695,"date":"2021-09-17T06:00:00","date_gmt":"2021-09-17T11:00:00","guid":{"rendered":"https:\/\/www.bigdatainrealworld.com\/?p=1695"},"modified":"2023-02-19T07:31:05","modified_gmt":"2023-02-19T13:31:05","slug":"how-does-spark-decide-stages-and-tasks-during-execution-of-a-job","status":"publish","type":"post","link":"https:\/\/www.bigdatainrealworld.com\/how-does-spark-decide-stages-and-tasks-during-execution-of-a-job\/","title":{"rendered":"How does Spark decide stages and tasks during execution of a Job?"},"content":{"rendered":"

Let\u2019s see this with an example. Here is our series of instructions in our Spark code. Let\u2019s see how Spark decide on stages and tasks with the below set of instructions.<\/p>\n

    \n
  1. READ dataset_X<\/span><\/li>\n
  2. FILTER on dataset_X<\/span><\/li>\n
  3. MAP operation on dataset_X<\/span><\/li>\n
  4. READ dataset_Y<\/span><\/li>\n
  5. MAP operation on dataset_Y<\/span><\/li>\n
  6. JOIN dataset_X and dataset_Y<\/span><\/li>\n
  7. FILTER on joined dataset<\/span><\/li>\n
  8. SAVE the output<\/span><\/li>\n<\/ol>\n