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Sqoop - Job

Sqoop - Job Shout 4 Education
This chapter describes how to create and maintain the Sqoop jobs. Sqoop job creates and saves the import and export commands. It specifies parameters to identify and recall the saved job. This re-calling or re-executing is used in the incremental import, which can import the updated rows from RDBMS table to HDFS.

Syntax

The following is the syntax for creating a Sqoop job.
$ sqoop job (generic-args) (job-args)
   [-- [subtool-name] (subtool-args)]

$ sqoop-job (generic-args) (job-args)
   [-- [subtool-name] (subtool-args)]

Create Job (--create)

Here we are creating a job with the name myjob, which can import the table data from RDBMS table to HDFS. The following command is used to create a job that is importing data from the employee table in the db database to the HDFS file.
$ sqoop job --create myjob \
-- import \
--connect jdbc:mysql://localhost/db \
--username root \
--table employee --m 1

Verify Job (--list)

‘--list’ argument is used to verify the saved jobs. The following command is used to verify the list of saved Sqoop jobs.
$ sqoop job --list
It shows the list of saved jobs.
Available jobs: 
   myjob

Inspect Job (--show)

‘--show’ argument is used to inspect or verify particular jobs and their details. The following command and sample output is used to verify a job called myjob.
$ sqoop job --show myjob
It shows the tools and their options, which are used in myjob.
Job: myjob 
 Tool: import Options:
 ---------------------------- 
 direct.import = true
 codegen.input.delimiters.record = 0
 hdfs.append.dir = false 
 db.table = employee
 ...
 incremental.last.value = 1206
 ...

Execute Job (--exec)

‘--exec’ option is used to execute a saved job. The following command is used to execute a saved job called myjob.
$ sqoop job --exec myjob
It shows you the following output.
10/08/19 13:08:45 INFO tool.CodeGenTool: Beginning code generation 
...

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Shout4Education - Get Jobs, Tutorials and Notes: Sqoop - Job
Sqoop - Job
Sqoop - Installation .. Best Sqoop Tutorial only @ Shout4Education .. Learn Sqoop in an Easy Way .. Keep Shouting For Education. . This chapter describes how to create and maintain the Sqoop jobs. Sqoop job creates and saves the import and export commands. It specifies parameters to identify and recall the saved job. This re-calling or re-executing is used in the incremental import, which can import the updated rows from RDBMS table to HDFS. Syntax The following is the syntax for creating a Sqoop job. $ sqoop job (generic-args) (job-args) [-- [subtool-name] (subtool-args)] $ sqoop-job (generic-args) (job-args) [-- [subtool-name] (subtool-args)] Create Job (--create) Here we are creating a job with the name myjob, which can import the table data from RDBMS table to HDFS. The following command is used to create a job that is importing data from the employee table in the db database to the HDFS file. $ sqoop job --create myjob \ -- import \ --connect jdbc:mysql://localhost/db \ --username root \ --table employee --m 1 Verify Job (--list) ‘--list’ argument is used to verify the saved jobs. The following command is used to verify the list of saved Sqoop jobs. $ sqoop job --list It shows the list of saved jobs. Available jobs: myjob Inspect Job (--show) ‘--show’ argument is used to inspect or verify particular jobs and their details. The following command and sample output is used to verify a job called myjob. $ sqoop job --show myjob It shows the tools and their options, which are used in myjob. Job: myjob Tool: import Options: ---------------------------- direct.import = true codegen.input.delimiters.record = 0 hdfs.append.dir = false db.table = employee ... incremental.last.value = 1206 ... Execute Job (--exec) ‘--exec’ option is used to execute a saved job. The following command is used to execute a saved job called myjob. $ sqoop job --exec myjob It shows you the following output. 10/08/19 13:08:45 INFO tool.CodeGenTool: Beginning code generation ... @Shout 4 Education , @ Shout For Education
https://1.bp.blogspot.com/-38VzF3EYqhU/XoJVtnrNXWI/AAAAAAAAA4E/NCAxAbqfuuk2pF_-zJ5sZMnyXZLq3j4cACLcBGAsYHQ/s640/Apache_Sqoop_Logo_Shout4Education.png
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