2.1. Command Line Shell¶
Sqoop 2 provides command line shell that is capable of communicating with Sqoop 2 server using REST interface. Client is able to run in two modes - interactive and batch mode. Commands create, update and clone are not currently supported in batch mode. Interactive mode supports all available commands.
You can start Sqoop 2 client in interactive mode using command sqoop2-shell:
sqoop2-shell
Batch mode can be started by adding additional argument representing path to your Sqoop client script:
sqoop2-shell /path/to/your/script.sqoop
Sqoop client script is expected to contain valid Sqoop client commands, empty lines and lines starting with # that are denoting comment lines. Comments and empty lines are ignored, all other lines are interpreted. Example script:
# Specify company server
set server --host sqoop2.company.net
# Executing given job
start job --name 1
Table of Contents
2.1.1. Resource file¶
Sqoop 2 client have ability to load resource files similarly as other command line tools. At the beginning of execution Sqoop client will check existence of file .sqoop2rc in home directory of currently logged user. If such file exists, it will be interpreted before any additional actions. This file is loaded in both interactive and batch mode. It can be used to execute any batch compatible commands.
Example resource file:
# Configure our Sqoop 2 server automatically
set server --host sqoop2.company.net
# Run in verbose mode by default
set option --name verbose --value true
2.1.2. Commands¶
Sqoop 2 contains several commands that will be documented in this section. Each command have one more functions that are accepting various arguments. Not all commands are supported in both interactive and batch mode.
2.1.2.1. Auxiliary Commands¶
Auxiliary commands are commands that are improving user experience and are running purely on client side. Thus they do not need working connection to the server.
- exit Exit client immediately. This command can be also executed by sending EOT (end of transmission) character. It’s CTRL+D on most common Linux shells like Bash or Zsh.
- history Print out command history. Please note that Sqoop client is saving history from previous executions and thus you might see commands that you’ve executed in previous runs.
- help Show all available commands with short in-shell documentation.
sqoop:000> help
For information about Sqoop, visit: http://sqoop.apache.org/
Available commands:
exit (\x ) Exit the shell
history (\H ) Display, manage and recall edit-line history
help (\h ) Display this help message
set (\st ) Configure various client options and settings
show (\sh ) Display various objects and configuration options
create (\cr ) Create new object in Sqoop repository
delete (\d ) Delete existing object in Sqoop repository
update (\up ) Update objects in Sqoop repository
clone (\cl ) Create new object based on existing one
start (\sta) Start job
stop (\stp) Stop job
status (\stu) Display status of a job
enable (\en ) Enable object in Sqoop repository
disable (\di ) Disable object in Sqoop repository
2.1.2.2. Set Command¶
Set command allows to set various properties of the client. Similarly as auxiliary commands, set do not require connection to Sqoop server. Set commands is not used to reconfigure Sqoop server.
Available functions:
| Function | Description |
|---|---|
| server | Set connection configuration for server |
| option | Set various client side options |
2.1.2.2.1. Set Server Function¶
Configure connection to Sqoop server - host port and web application name. Available arguments:
| Argument | Default value | Description |
|---|---|---|
| -h, --host | localhost | Server name (FQDN) where Sqoop server is running |
| -p, --port | 12000 | TCP Port |
| -w, --webapp | sqoop | Jetty’s web application name |
| -u, --url | Sqoop Server in url format |
Example:
set server --host sqoop2.company.net --port 80 --webapp sqoop
or
set server --url http://sqoop2.company.net:80/sqoop
Note: When --url option is given, --host, --port or --webapp option will be ignored.
2.1.2.2.2. Set Option Function¶
Configure Sqoop client related options. This function have two required arguments name and value. Name represents internal property name and value holds new value that should be set. List of available option names follows:
| Option name | Default value | Description |
|---|---|---|
| verbose | false | Client will print additional information if verbose mode is enabled |
| poll-timeout | 10000 | Server poll timeout in milliseconds |
Example:
set option --name verbose --value true
set option --name poll-timeout --value 20000
2.1.2.3. Show Command¶
Show commands displays various information as described below.
Available functions:
| Function | Description |
|---|---|
| server | Display connection information to the sqoop server (host, port, webapp) |
| option | Display various client side options |
| version | Show client build version, with an option -all it shows server build version and supported api versions |
| connector | Show connector configurable and its related configs |
| driver | Show driver configurable and its related configs |
| link | Show links in sqoop |
| job | Show jobs in sqoop |
2.1.2.3.1. Show Server Function¶
Show details about connection to Sqoop server.
| Argument | Description |
|---|---|
| -a, --all | Show all connection related information (host, port, webapp) |
| -h, --host | Show host |
| -p, --port | Show port |
| -w, --webapp | Show web application name |
Example:
show server --all
2.1.2.3.2. Show Option Function¶
Show values of various client side options. This function will show all client options when called without arguments.
| Argument | Description |
|---|---|
| -n, --name | Show client option value with given name |
Please check table in Set Option Function section to get a list of all supported option names.
Example:
show option --name verbose
2.1.2.3.3. Show Version Function¶
Show build versions of both client and server as well as the supported rest api versions.
| Argument | Description |
|---|---|
| -a, --all | Show all versions (server, client, api) |
| -c, --client | Show client build version |
| -s, --server | Show server build version |
| -p, --api | Show supported api versions |
Example:
show version --all
2.1.2.3.4. Show Connector Function¶
Show persisted connector configurable and its related configs used in creating associated link and job objects
| Argument | Description |
|---|---|
| -a, --all | Show information for all connectors |
| -c, --cid <x> | Show information for connector with id <x> |
Example:
show connector --all or show connector
2.1.2.3.5. Show Driver Function¶
Show persisted driver configurable and its related configs used in creating job objects
This function do not have any extra arguments. There is only one registered driver in sqoop
Example:
show driver
2.1.2.3.6. Show Link Function¶
Show persisted link objects.
| Argument | Description |
|---|---|
| -a, --all | Show all available links |
| -n, --name <x> | Show link with name <x> |
Example:
show link --all or show link --name linkName
2.1.2.3.7. Show Job Function¶
Show persisted job objects.
| Argument | Description |
|---|---|
| -a, --all | Show all available jobs |
| -n, --name <x> | Show job with name <x> |
Example:
show job --all or show job --name jobName
2.1.2.3.8. Show Submission Function¶
Show persisted job submission objects.
| Argument | Description |
|---|---|
| -j, --job <x> | Show available submissions for given job name |
| -d, --detail | Show job submissions in full details |
Example:
show submission
show submission --j jobName
show submission --job jobName --detail
2.1.2.4. Create Command¶
Creates new link and job objects. This command is supported only in interactive mode. It will ask user to enter the link config and job configs for from /to and driver when creating link and job objects respectively.
Available functions:
| Function | Description |
|---|---|
| link | Create new link object |
| job | Create new job object |
2.1.2.4.1. Create Link Function¶
Create new link object.
| Argument | Description |
|---|---|
| -c, --connector <x> | Create new link object for connector with name <x> |
Example:
create link --connector connectorName or create link -c connectorName
2.1.2.4.2. Create Job Function¶
Create new job object.
| Argument | Description |
|---|---|
| -f, --from <x> | Create new job object with a FROM link with name <x> |
| -t, --to <t> | Create new job object with a TO link with name <x> |
Example:
create job --from fromLinkName --to toLinkName or create job --f fromLinkName --t toLinkName
2.1.2.5. Update Command¶
Update commands allows you to edit link and job objects. This command is supported only in interactive mode.
2.1.2.5.1. Update Link Function¶
Update existing link object.
| Argument | Description |
|---|---|
| -n, --name <x> | Update existing link with name <x> |
Example:
update link --name linkName
2.1.2.5.2. Update Job Function¶
Update existing job object.
| Argument | Description |
|---|---|
| -n, --name <x> | Update existing job object with name <x> |
Example:
update job --name jobName
2.1.2.6. Delete Command¶
Deletes link and job objects from Sqoop server.
2.1.2.6.1. Delete Link Function¶
Delete existing link object.
| Argument | Description |
|---|---|
| -n, --name <x> | Delete link object with name <x> |
Example:
delete link --name linkName
2.1.2.6.2. Delete Job Function¶
Delete existing job object.
| Argument | Description |
|---|---|
| -n, --name <x> | Delete job object with name <x> |
Example:
delete job --name jobName
2.1.2.7. Clone Command¶
Clone command will load existing link or job object from Sqoop server and allow user in place updates that will result in creation of new link or job object. This command is not supported in batch mode.
2.1.2.7.1. Clone Link Function¶
Clone existing link object.
| Argument | Description |
|---|---|
| -n, --name <x> | Clone link object with name <x> |
Example:
clone link --name linkName
2.1.2.7.2. Clone Job Function¶
Clone existing job object.
| Argument | Description |
|---|---|
| -n, --name <x> | Clone job object with name <x> |
Example:
clone job --name jobName
2.1.2.8. Start Command¶
Start command will begin execution of an existing Sqoop job.
2.1.2.8.1. Start Job Function¶
Start job (submit new submission). Starting already running job is considered as invalid operation.
| Argument | Description |
|---|---|
| -n, --name <x> | Start job with name <x> |
| -s, --synchronous | Synchoronous job execution |
Example:
start job --name jobName
start job --name jobName --synchronous
2.1.2.9. Stop Command¶
Stop command will interrupt an job execution.
2.1.2.9.1. Stop Job Function¶
Interrupt running job.
| Argument | Description |
|---|---|
| -n, --name <x> | Interrupt running job with name <x> |
Example:
stop job --name jobName
2.1.2.10. Status Command¶
Status command will retrieve the last status of a job.
2.1.2.10.1. Status Job Function¶
Retrieve last status for given job.
| Argument | Description |
|---|---|
| -n, --name <x> | Retrieve status for job with name <x> |
Example:
status job --name jobName