Help Center/ MapReduce Service/ Component Operation Guide (Normal)/ Using Loader/ Client Tools/ Example for Using the Open-Source sqoop-shell Tool (SFTP-HDFS)
Updated on 2023-05-06 GMT+08:00
View PDF

Example for Using the Open-Source sqoop-shell Tool (SFTP-HDFS)

Scenario

Taking importing data from SFTP to HDFS as an example, this section introduces how to use the sqoop-shell tool to create and start Loader jobs in the interaction mode and batch mode.

This section applies to MRS 3.x or later.

Prerequisites

The Loader client has been installed and configured. For details, see Running a Loader Job by Using Commands.

Example for the Interaction Mode

  1. Log in to the node where the Loader client is installed as the user who installs the client.
  2. Run the following command to go to the conf directory of the sqoop-shell tool. For example, if the Loader client installation directory is /opt/client/Loader/, run the following command:

    cd /opt/client/Loader/loader-tools-1.99.3/sqoop-shell/conf

  3. Run the following command to configure authentication information:

    vi client.properties 
    server.url=10.0.0.1:21351
# simple or kerberos 
authentication.type=simple 
# true or false 
use.keytab=true 

authentication.user= 
authentication.password= 

client.principal=hdfs/hadoop@<system domain name>

# keytab file 
client.keytab.file=./conf/login/hdfs.keytab

    Log in to FusionInsight Manager and choose System > Permission > Domain and Mutual Trust. The value of Local Domain is the current system domain name.

    Table 1 Configuration parameters

    Configuration parameters

    Description

    Example Value

    server.url

    Floating IP address and port (21351) for Loader.

    For compatibility, multiple IP addresses and ports can be configured and need to be separated by commas (,). The first IP address and port must be those of Loader (21351). The others can be configured based on service requirements.

    10.0.0.1:21351

    authentication.type

    Login authentication mode.

    • kerberos indicates that the security mode is used and Kerberos authentication is performed. Kerberos authentication provides two authentication modes: the password mode and the keytab file mode.
    • simple indicates that the normal mode is used and Kerberos authentication is not performed.

    kerberos

    authentication.user

    User for login when the normal mode or password authentication is used.

    In the keytab login mode, this parameter does not need to be set.

    bar

    authentication.password

    User password for login when the password authentication mode is used.

    In the normal mode or keytab login mode, this parameter does not need to be set.

    The password needs to be encrypted. The encryption method is described as follows:

    1. Go to the directory where encrypt_tool is located. For example, if the Loader client installation directory is /opt/hadoopclient/Loader, run the following command:

      cd /opt/hadoopclient/Loader/loader-tools-1.99.3

    2. Run the following command to encrypt the non-encrypted password:

      ./encrypt_tool Unencrypted password

      The obtained encrypted password is used as the value of authentication.password.

      NOTE:

      If a non-encrypted password contains special characters, the special characters must be escaped. For example, the dollar sign ($) is a special character and can be escaped using single quotation marks ('). If a non-encrypted password contains single quotation marks, use double quotation marks to escape the single quotation marks. If a non-encrypted password contains double quotation marks, use backslashes (\) to escape the double quotation marks. For details, see the shell escape character rules.

    -

    use.keytab

    Whether to use the keytab mode to log in.

    • true indicates using the keytab file to log in.
    • false indicates using the password to log in.

    true

    client.principal

    User principal for accessing the Loader service when the keytab authentication mode is used.

    In the normal mode or password login mode, this parameter does not need to be set.

    loader/hadoop

    client.keytab.file

    Directory where the used keytab file is located when the keytab authentication mode is used.

    In the normal mode or password login mode, this parameter does not need to be set.

    /opt/client/conf/loader.keytab

  4. Run the following command to go to the interaction mode:

    source /opt/client/bigdata_env

    cd /opt/client/Loader/loader-tools-1.99.3/sqoop-shell

    ./sqoop2-shell

    The preceding commands obtain authentication information by reading the configuration file.

    Alternatively, you can also use the password or Kerberos authentication.

    Run the following command to authenticate login using the password mode:

    ./sqoop2-shell -uk false -u username -p encryptedPassword

    Run the following command to authenticate login using the Kerberos mode:

    ./sqoop2-shell -uk true -k user.keytab -s userPrincipal

    Welcome to sqoop client
Use the username and password authentication mode
Authentication success.
Sqoop Shell: Type 'help' or '\h' for help.

sqoop:000>

  5. Run the following command to view the corresponding ID of the current connector:

    show connector

    The following information is displayed:

    +----+----------------------------+----------------+----------------------------------------------------------------------+
| Id |            Name            |    Version     |                                Class                                 |
+----+----------------------------+----------------+----------------------------------------------------------------------+
| 1  | generic-jdbc-connector     | 2.0.6-SNAPSHOT | org.apache.sqoop.connector.jdbc.GenericJdbcConnector                 |
| 2  | ftp-connector              | 2.0.5-SNAPSHOT | org.apache.sqoop.connector.ftp.FtpConnector                          |
| 3  | hdfs-connector             | 2.0.5-SNAPSHOT | org.apache.sqoop.connector.hdfs.HdfsConnector                        |
| 4  | oracle-connector           | 2.0.1-SNAPSHOT | org.apache.sqoop.connector.oracle.OracleConnector                    |
| 5  | mysql-fastpath-connector   | 2.0.1-SNAPSHOT | org.apache.sqoop.connector.mysql.MySqlConnector                      |
| 6  | sftp-connector             | 2.0.5-SNAPSHOT | org.apache.sqoop.connector.sftp.SftpConnector                        |
| 7  | oracle-partition-connector | 2.0.6-SNAPSHOT | org.apache.sqoop.connector.oracle.partition.OraclePartitionConnector |
+----+----------------------------+----------------+----------------------------------------------------------------------+

    The preceding information indicates that the SFTP connector ID is 6.

  6. Run the following command to create connectors and enter the specific connector information as prompted:

    create connection -c connector ID

    For example, if the connector ID is 6, run the following command:

    create connection -c 6

    sqoop:000> create connection -c 6
Creating connection for connector with id 6
Please fill following values to create new connection object
Name: sftp14

Connection configuration

Sftp server IP: 10.0.0.1
Sftp server port: 22
Sftp user name: root
Sftp password: ************
Sftp public key:
New connection was successfully created with validation status FINE and persistent id 20
sqoop:000>

    The preceding information indicates that the connection ID is 20.

  7. Based on the connection ID, run the following command to create jobs:

    create job -x connection ID -t import

    For example, if the connection ID is 20, run the following command:

    create job -x 20 -t import

    The following information is displayed:

    Creating job for connection with id 20
Please fill following values to create new job object
Name: sftp-hdfs-test

File configuration

Input path: /opt/tempfile
File split type: 
  0 : FILE
  1 : SIZE
Choose: 0
Filter type: 
  0 : WILDCARD
  1 : REGEX
Choose: 0
Path filter: *
File filter: *
Encode type: 
Suffix name: 
Compression: 

Output configuration

Storage type: 
  0 : HDFS
  1 : HBASE_BULKLOAD
  2 : HBASE_PUTLIST
  3 : HIVE
Choose: 0
File type: 
  0 : TEXT_FILE
  1 : SEQUENCE_FILE
  2 : BINARY_FILE
Choose: 0
Compression format: 
  0 : NONE
  1 : DEFAULT
  2 : DEFLATE
  3 : GZIP
  4 : BZIP2
  5 : LZ4
  6 : SNAPPY
Choose: 
Output directory: /user/loader/test
File operate type: 
  0 : OVERRIDE
  1 : RENAME
  2 : APPEND
  3 : IGNORE
  4 : ERROR
Choose: 0

Throttling resources

Extractors: 2
Extractor size: 
New job was successfully created with validation status FINE  and persistent id 85
sqoop:000>

    The preceding information indicates that the job ID is 85.

  8. Run the following command to start the job:

    start job -j job ID -s

    For example, if the job ID is 85, run the following command:

    start job -j 85 -s

    Displaying the SUCCEEDED information indicates that the job is started successfully. 
    Submission details
Job ID: 85
Server URL: https://10.0.0.0:21351/loader/
Created by: admin
Creation date: 2016-07-20 16:25:38 GMT+08:00
Lastly updated by: admin
2016-07-20 16:25:38 GMT+08:00: BOOTING  - Progress is not available
2016-07-20 16:25:46 GMT+08:00: BOOTING  - 0.00 %
2016-07-20 16:25:53 GMT+08:00: BOOTING  - 0.00 %
2016-07-20 16:26:08 GMT+08:00: RUNNING  - 90.00 %
2016-07-20 16:26:08 GMT+08:00: RUNNING  - 90.00 %
2016-07-20 16:26:27 GMT+08:00: SUCCEEDED

Example for the Batch Mode

  1. Log in to the node where the Loader client is installed as the user who installs the client.
  2. Run the following command to go to the conf directory of the sqoop-shell tool. For example, if the Loader client installation directory is /opt/client/Loader/, run the following command:

    cd /opt/client/Loader/loader-tools-1.99.3/sqoop-shell/conf

  3. Run the following command to configure authentication information:

    vi client.properties 
    server.url=10.0.0.1:21351
# simple or kerberos 
authentication.type=simple 
# true or false 
use.keytab=true 

authentication.user= 
authentication.password= 

client.principal=hdfs/hadoop@<system domain name>

# keytab file 
client.keytab.file=./conf/login/hdfs.keytab
    Table 2 Configuration parameters

    Configuration parameters

    Description

    Example Value

    server.url

    Floating IP address and port (21351) for Loader.

    For compatibility, multiple IP addresses and ports can be configured and need to be separated by commas (,). The first IP address and port must be those of Loader (21351). The others can be configured based on service requirements.

    10.0.0.1:21351

    authentication.type

    Login authentication mode.

    • kerberos indicates that the security mode is used and Kerberos authentication is performed. Kerberos authentication provides two authentication modes: the password mode and the keytab file mode.
    • simple indicates that the normal mode is used and Kerberos authentication is not performed.

    kerberos

    authentication.user

    User for login when the normal mode or password authentication is used.

    In the keytab login mode, this parameter does not need to be set.

    bar

    authentication.password

    User password for login when the password authentication mode is used.

    In the normal mode or keytab login mode, this parameter does not need to be set.

    The password needs to be encrypted. The encryption method is described as follows:

    1. Go to the directory where encrypt_tool is located. For example, if the Loader client installation directory is /opt/hadoopclient/Loader, run the following command:

      cd /opt/hadoopclient/Loader/loader-tools-1.99.3

    2. Run the following command to encrypt the non-encrypted password:

      ./encrypt_tool Unencrypted password

      The obtained encrypted password is used as the value of authentication.password.

      NOTE:

      If a non-encrypted password contains special characters, the special characters must be escaped. For example, the dollar sign ($) is a special character and can be escaped using single quotation marks ('). If a non-encrypted password contains single quotation marks, use double quotation marks to escape the single quotation marks. If a non-encrypted password contains double quotation marks, use backslashes (\) to escape the double quotation marks. For details, see the shell escape character rules.

    -

    use.keytab

    Whether to use the keytab mode to log in.

    • true indicates using the keytab file to log in.
    • false indicates using the password to log in.

    true

    client.principal

    User principal for accessing the Loader service when the keytab authentication mode is used.

    In the normal mode or password login mode, this parameter does not need to be set.

    loader/hadoop

    client.keytab.file

    Directory where the used keytab file is located when the keytab authentication mode is used.

    In the normal mode or password login mode, this parameter does not need to be set.

    /opt/client/conf/loader.keytab

  4. Run the following command to go to the directory where the sqoop2-shell script is located and create a text file in the directory, such as batchCommand.sh:

    cd /opt/client/Loader/loader-tools-1.99.3/sqoop-shell

    vi batchCommand.sh

    An example of batchCommand.sh is displayed as follows:

    View parameters
create connection -c 6 --help

// Create a connector
create connection -c 6 -name sftp-connection --connector-connection-sftpServerIp 10.0.0.1 --connector-connection-sftpServerPort 22 --connector-connection-sftpUser root --connector-connection-sftpPassword xxxxx

Create a job
create job -t import -x 20 --connector-file-inputPath /opt/tempfile --connector-file-fileFilter * --framework-output-outputDirectory /user/loader/1 --framework-output-storageType HDFS --framework-throttling-extractorSize 120 --framework-output-fileType TEXT_FILE --connector-file-splitType FILE -name test

Start a job
start job -j 85 -s

    xxxxx is the password for the connector.

  5. Run the following command and the sqoop-shell tool will run the preceding commands in sequence:

    ./sqoop2-shell batchCommand.sh

    The commands above authenticate login by reading configuration files. Alternatively, you can attach the authentication information to the command, that is, use the password mode or Kerberos mode to authenticate login.

    Run the following command to authenticate login using the password mode:

    ./sqoop2-shell -uk false -u username -p encryptedPassword batchCommand.sh

    Run the following command to authenticate login using the Kerberos mode:

    ./sqoop2-shell -uk true -k user.keytab -s userPrincipal batchCommand.sh

    Displaying the SUCCEEDED information indicates that the job is started successfully.

    Welcome to sqoop client
Use the username and password authentication mode
Authentication success.
sqoop:000> create connection -c 6 --help
usage: Show connection parameters:
    --connector-connection-sftpPassword <arg>
    --connector-connection-sftpServerIp <arg>
    --connector-connection-sftpServerPort <arg>
    --connector-connection-sftpUser <arg>
    --framework-security-maxConnections <arg>
    --name <arg>
===> FINE
sqoop:000> create connection -c 6 -name sftp-connection --connector-connection-sftpServerIp 10.0.0.1 --connector-connection-sftpServerPort 22 --connector-connection-sftpUser root --connector-connection-sftpPassword xxxxx
Creating connection for connector with id 6
New connection was successfully created with validation status FINE and persistent id 20
===> FINE
sqoop:000> create job -t import -x 20 --connector-file-inputPath /opt/tempfile --connector-file-fileFilter * --framework-output-outputDirectory /user/loader/1 --framework-output-storageType HDFS --framework-throttling-extractorSize 120 --framework-output-fileType TEXT_FILE --connector-file-splitType FILE -name test
Creating job for connection with id 20
New job was successfully created with validation status FINE  and persistent id 85
===> FINE

Submission details
Job ID: 85
Server URL: https://10.0.0.0:21351/loader/
Created by: admin
Creation date: 2016-07-20 16:25:38 GMT+08:00
Lastly updated by: admin
2016-07-20 16:25:38 GMT+08:00: BOOTING  - Progress is not available
2016-07-20 16:25:46 GMT+08:00: BOOTING  - 0.00 %
2016-07-20 16:25:53 GMT+08:00: BOOTING  - 0.00 %
2016-07-20 16:26:08 GMT+08:00: RUNNING  - 90.00 %
2016-07-20 16:26:08 GMT+08:00: RUNNING  - 90.00 %
2016-07-20 16:26:27 GMT+08:00: SUCCEEDED

  6. In the batch mode, the -c parameter can be used to attach a command. sqoop-shell can execute only the attached command at a time.

    Run the following command to create a connection:

    ./sqoop2-shell -c "create connection -c 6 -name sftp-connection --connector-connection-sftpServerIp 10.0.0.1 --connector-connection-sftpServerPort 22 --connector-connection-sftpUser root --connector-connection-sftpPassword xxxxx"

    You can also use the password mode or Kerberos mode to attach the authentication information to the command.

    Run the following command to authenticate login using the password mode:

    ./sqoop2-shell -uk false -u username -p encryptedPassword -c "create connection -c 6 -name sftp-connection --connector-connection-sftpServerIp 10.0.0.1 --connector-connection-sftpServerPort 22 --connector-connection-sftpUser root --connector-connection-sftpPassword xxxxx"

    Run the following command to authenticate login using the Kerberos mode:

    ./sqoop2-shell -uk true -k user.keytab -s userPrincipal -c "create connection -c 6 -name sftp-connection --connector-connection-sftpServerIp 10.0.0.1 --connector-connection-sftpServerPort 22 --connector-connection-sftpUser root --connector-connection-sftpPassword xxxxx"

    Displaying the FINE information indicates the connection is created successfully.

    Welcome to sqoop client
Use the username and password authentication mode
Authentication success.
sqoop:000> create connection -c 6 -name sftp-connection --connector-connection-sftpServerIp 10.0.0.1 --connector-connection-sftpServerPort 22 --connector-connection-sftpUser root --connector-connection-sftpPassword xxxxx
Creating connection for connector with id 6
New connection was successfully created with validation status FINE and persistent id 20
===> FINE

Parent topic: Client Tools