Sqoop Pertanyaan dan Jawaban Wawancara
Ques 26. Explain the purpose of the --direct-split-size option in Sqoop.
The --direct-split-size option is used to specify the number of bytes per split when using direct mode for imports and exports.
Example:
sqoop import --connect jdbc:mysql://localhost:3306/db --table mytable --direct --direct-split-size 1000000
Apakah ini membantu?
Add Comment
View Comments
Ques 27. How can you perform an export operation in Sqoop to update existing records?
To update existing records during export in Sqoop, you can use the --update-key option along with --update-mode option set to allowinsert.
Example:
sqoop export --connect jdbc:mysql://localhost:3306/db --table mytable --update-key id --update-mode allowinsert --export-dir /user/hadoop/mytable
Apakah ini membantu?
Add Comment
View Comments
Ques 28. Explain the purpose of the --hcatalog-database option in Sqoop.
The --hcatalog-database option specifies the HCatalog database name when importing data into HCatalog.
Example:
sqoop import --connect jdbc:mysql://localhost:3306/db --table mytable --hcatalog-import --hcatalog-database mydatabase
Apakah ini membantu?
Add Comment
View Comments
Ques 29. What is the purpose of the --direct-split-size option in Sqoop?
The --direct-split-size option is used to specify the number of bytes per split when using direct mode for imports and exports.
Example:
sqoop import --connect jdbc:mysql://localhost:3306/db --table mytable --direct --direct-split-size 1000000
Apakah ini membantu?
Add Comment
View Comments
Ques 30. Explain the purpose of the --autoreset-to-one-mapper option in Sqoop.
The --autoreset-to-one-mapper option automatically resets the number of mappers to one if the initial split size is larger than the total number of rows in the table.
Example:
sqoop import --connect jdbc:mysql://localhost:3306/db --table mytable --autoreset-to-one-mapper
Apakah ini membantu?
Add Comment
View Comments
Most helpful rated by users: