# Installing Talend Data Preparation manually

This procedure contains the steps to manually install Talend Data Preparation on your machine.

## Before you begin

* Talend Administration Center is installed and running.
* Talend Identity and Access Management is installed and running.
* A Talend Data Preparation user exists in Talend Administration Center. For more information, see Talend Administration Center User Guide.
* There are no other instances of MongoDB installed on your machine.
* To use Talend Data Preparation with Big Data, use one of the supported Hadoop distribution. For more information, see [Supported Hadoop distribution versions for Talend Data Preparation with Big Data](https://help.qlik.com/talend/en-US/installation-guide-linux/7.3/supported-hadoop-distribution-versions-for-talend-data-preparation-with-big-data).
* Before installing Talend Data Preparation, make sure that you fulfill the hardware and software requirements. For more information, see [Prerequisites On-premises installation prerequisites](https://help.qlik.com/talend/en-US/installation-guide-linux/7.3/talend-subscription-products-installation-prerequisites).

## Procedure

1. Download a MongoDB instance from https://www.mongodb.com/download-center and install it.

   For more information on the supported MongoDB databases, see [Compatible databases](https://help.qlik.com/talend/en-US/installation-guide-linux/7.3/compatible-databases).

   For more information on how to install it, see [MongoDB documentation](https://docs.mongodb.com/manual/).

   If you want to secure connections with MongoDB using SSL, MongoDB Enterprise Server has to be manually installed on your machine. For more information, see https://docs.mongodb.com/v4.0/security/.
2. Unzip the Talend-DataPreparation-Server-VA.B.C.zip file where you want Talend Data Preparation to be installed.
3. Unzip the <Data\_Preparation\_Path>/services/components-api-service-rest-all-components-VA.B.C.zip file where you want Components Catalog to be installed.
4. To use Talend Data Preparation in a Big Data context, you need to install two additional tools, Streams Runner and Spark Job Server.

   Note that Streams Runner and Spark Job Server must be installed on a Linux machine.
   1. Unpack <Data\_Preparation\_Path>/services/data-streams-streamsrunner-svc-A.B.C.tgz file where you want Streams Runner to be installed.
   2. Unpack the <Data\_Preparation\_Path>/services/spark-jobserver-A.B.C.tar.gz file where you want Spark Job Server to be installed. This file contains Spark Job Server plus all the required dependencies.

      Additionally, you must have already installed curl, a command-line tool and library for transferring data with URLs. You can download it from https://curl.haxx.se/ if needed.
5. Add mongo to the PATH environment variable.
6. Create the dataprep database in MongoDB using the following command: use dataprep.
7. Create the following user for the dataprep database in MongoDB:
   * Username: dataprep-user
   * Password: duser

   To do this, you can use the following command:
   ```
   db.createUser( { user: "dataprep-user", pwd: "duser", roles: [{ role: "readWrite", db: "dataprep"}]})
   ```

   You can automatically create the user and password by executing the <Data\_Preparation\_Path>/create\_mongo\_user.sh file.