Migrating to Talend Data Preparation 7.3.x with an embedded MongoDB

Migrating to Talend Data Preparation 7.3.x with an embedded MongoDB - 7.3

Talend Migration and Upgrade Guide

Version

7.3

Language

English

Product

Talend Big Data

Talend Big Data Platform

Talend Data Fabric

Talend Data Integration

Talend Data Management Platform

Talend Data Services Platform

Talend ESB

Talend MDM Platform

Talend Real-Time Big Data Platform

Module

Talend Activity Monitoring Console

Talend Administration Center

Talend Artifact Repository

Talend CommandLine

Talend Data Preparation

Talend Data Stewardship

Talend ESB

Talend Identity and Access Management

Talend JobServer

Talend LogServer

Talend MDM Server

Talend MDM Web UI

Talend Runtime

Talend SAP RFC Server

Talend Studio

Content

Installation and Upgrade

Last publication date

2023-05-19

Before you begin

ⓘ

Available in:

Big Data Platform

Data Fabric

Data Management Platform

Data Services Platform

MDM Platform

Real-Time Big Data Platform

If you have installed and used Talend Dictionary Service to create custom semantic types or update the predefined ones, you must migrate Talend Dictionary Service before migrating Talend Data Preparation. See Migrating to Talend Dictionary Service 7.3.x.

Download Talend Data Preparation 7.3.x.

Upgrade Talend Administration Center. For more information, see Upgrading Talend Administration Center.

Procedure

Stop your current Talend Data Preparation instance but keep the MongoDB instance running.

Back up your MongoDB by running the following command.

For Linux:

<mongo_path>/bin
./mongodump -h <source_mongodb_host>:<source_mongo_port> -d <source_database> -u <source_mongodb_user> -p <source_mongodb_password> -o <dump_output>

For Windows:

<mongo_path>\bin>mongodump -h <source_mongodb_host>:<source_mongo_port> -d <source_database> -u <source_mongodb_user> -p <source_mongodb_password> -o <dump_output>

The default value for the embedded MongoDB properties are the following:

Property	Value
`mongodb.host`	`localhost`
`mongodb.port`	`27017`
`mongodb.database`	`tdp`
`mongodb.user`	`tdp-user`
`mongodb.password`	`duser`

Stop the MongoDB instance from the previous version of Talend Data Preparation.

Note: For Windows users, you must uninstall the current MongoDB before you install Talend Data Preparation.
Install Talend Data Preparation and select the embedded MongoDB option. Do not start the instance.
If you have installed Talend Data Preparation in service mode, stop the instance and MongoDB.
Delete the database:
1. Open a mongo shell as a Talend Data Preparation database user and execute the following commands.
  For Linux:
```
cd <install_dir>/mongodb/bin
./mongo dataprep -u dataprep-user -p dprep --port 27017
```
  For Windows:
```
<install_dir>\mongodb\bin>mongo dataprep -u dataprep-user -p dprep --port 27017
```
2. Switch to the Talend Data Preparation database: use dataprep
3. Drop the database: db.runCommand( { dropDatabase: 1 } )
4. Exit mongo shell: exit

Restore the MongoDB backup on the new 7.3 MongoDB instance by using the following command.

For Linux:

<mongo_path>/bin
./mongorestore -h <mongo_host>:<mongo_port> -u <mongo_tdp_username> -p <mongo_tdp_password> -d <mongo_tdp_database> <backup_location>

For Windows:

<mongo_path>\bin>mongorestore -h <mongo_host>:<mongo_port> -u <mongo_tdp_username> -p <mongo_tdp_password> -d <mongo_tdp_database> <backup_location>

If you customized the <Data_Preparation_Path>/config/application.properties file in the previous version, you can copy the values from the old configuration file and add them to the new version.
To retrieve the content of the data-set storage folder used for the previous Talend Data Preparation and migrate it to version 7.3, complete the next step according to the your situation:
- If you have set a custom value for the dataset.content.store.file.location property, make sure that you set the same value in the application.properties file for the 7.3 version.
- If you have never modified the value of the dataset.content.store.file.location property, copy the content of the <Data_Preparation_Path>/data folder used in 1.x/2.x, and paste it in the 7.3 installation folder, following the same path.
Start Talend Data Preparation.
ⓘ
Available in:
Big Data Platform
Data Fabric
Data Management Platform
Data Services Platform
MDM Platform
Real-Time Big Data Platform
Republish semantic types using Talend Dictionary Service API to migrate indexes to Lucene 8.
For more information, see Talend Dictionary Service Administration Guide.

Results

You are now ready to use Talend Data Preparation.