Configuring Talend Data Preparation

Configuring Talend Data Preparation after installation

Open the <Data_Preparation_Path>/config/application.properties file and edit the following Talend Data Preparation properties:

Field	Action
public.ip	Enter the hostname you want to use to access Talend Data Preparation.
server.port	Enter the port you want to use for Talend Data Preparation user interface.
iam.ip	Enter the URL to your Talend Identity and Access Management instance.
spring.security.oauth2.client.registration.oidc.clientId	Enter the Talend Identity and Access Management OIDC client identifier.
spring.security.oauth2.resourceserver.iam.opaque-token.clientId	Enter the Talend Identity and Access Management OIDC client identifier.
spring.security.oauth2.client.registration.oidc.clientSecret	Enter the Talend Identity and Access Management OIDC client password.
spring.security.oauth2.resourceserver.iam.opaque-token.clientSecret	Enter the Talend Identity and Access Management OIDC client password.
iam.uri	Make sure that Talend Identity and Access Management port is correct.
iam.api.uri	Make sure that Talend Identity and Access Management port is correct.
app.products[0].id=TDS app.products[0].name=Data Stewardship app.products[0].url=<place_your_tds_url_here>	Enter the URL to your Talend Data Stewardship instance.

All the passwords entered in the properties file are encrypted when you start your Talend Data Preparation instance.

Update the following fields with your MongoDB settings:

Field	Description
spring.data.mongodb.host	Host name of your MongoDB instance
spring.data.mongodb.port	Port number of your MongoDB instance
spring.data.mongodb.database	Name of the database on which Talend Data Preparation is connected, dataprep by default. The database is created when you first launch Talend Data Preparation.
spring.data.mongodb.username	Username used to connect to the database
spring.data.mongodb.password	Password used to connect to the database

To enable the interaction between Talend Data Preparation and the Components Catalog service, edit the following line with your Components Catalog server host and port:
tcomp.server.url=http://<tcomp_host>:<tcomp_port>/tcomp
To enable the app switcher after installing Talend Data Preparation and Talend Data Stewardship, uncomment the following lines and add the URL to your Talend Data Stewardship instance:
```
app.products[0].id=TDS
app.products[0].name=Data Stewardship
app.products[0].url=<place_your_tds_url_here>
```
You must also add the URL to your Talend Data Preparation instance to the configuration file for Talend Data Stewardship. For more information, see the section about configuring Talend Data Stewardship after installation.
By default, audit logs are enabled. You must specify the correct appender.http.url parameter in the audit.properties file, or disable audit logs. For more information, see Enabling and configuring audit capabilities in Talend Data Preparation.

To configure the access to Talend Dictionary Service, edit the following fields:

Field	Description
dataquality.semantic.list.enable	Set the value of this parameter to true in order to display the semantic type management interface in Talend Data Preparation.
dataquality.server.url	Enter the URL to your Talend Dictionary Service instance, http://<local machine ip>:8187/ for example.
tsd.enabled	Set the value of this parameter to true in order to enable the interaction between Talend Data Preparation and Talend Dictionary Service
tsd.maven.connector.s3Repository.bucket-url	Enter the URL of your MinIO or S3 repository bucket. For example: `s3://talend-app-shared`.
tsd.maven.connector.s3Repository.base-path	Enter the base path of your MinIO or S3 repository. This property is optional and can be left empty. For example: `semantic-types-repository`.
tsd.maven.connector.s3Repository.username	Enter the username of your MinIO or S3 repository. For example: `username123`.
tsd.maven.connector.s3Repository.password	Enter the password of your MinIO or S3 repository. For example: `password123`.
tsd.maven.connector.s3Repository.s3.region	Enter the region of your MinIO or S3 repository. For example: `us-east-1`.
tsd.maven.connector.s3Repository.s3.endpoint	Enter the URL of your MinIO or S3 repository server. For example: `https://minio-company.com`.
tsd.dictionary-provider-facade.producer-url	Enter the URL to your Talend Dictionary Service instance.
spring.cloud.stream.kafka.binder.brokers	Enter the host corresponding to your Kafka broker.

To enable the semantic types, edit the following lines: dataquality.semantic.list.enable=true and dataquality.server.url=http://<local machine ip>:8187/.
Before starting Talend Data Preparation, launch, in this order:
1. Apache Kafka
2. MongoDB
3. MinIO
Execute the start.sh file to start your Talend Data Preparation instance.

Talend Data Preparation logs allows you to analyze and debug the activity of Talend Data Preparation.

Talend Data Preparation logs are located in <Data_Preparation_Path>/data/logs/app.log.

To configure the settings of your log files, edit the <Data_Preparation_Path>/config/log4j2.xml file:

For more information on how to set the Log4j information level, see the Apache Log4j documentation about information levels.
For more information on how to set the log rotation, see the Apache Log4j documentation about log rotation.

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