tMongoDBConnection properties - 6.1

Talend Open Studio for Big Data Components Reference Guide

EnrichVersion
6.1
EnrichProdName
Talend Open Studio for Big Data
task
Data Governance
Data Quality and Preparation
Design and Development
EnrichPlatform
Talend Studio

Component family

Big Data / MongoDB

 

Function

tMongoDBConnection opens a connection to a database in order that a transaction may be made.

Purpose

This component allows you to create a connection to a MongoDB database and reuse that connection in other components.

Basic settings

DB Version

List of the database versions.

 

Use replica set address

Select this check box to show the Replica address table.

In the Replica address table, you can define multiple MongoDB database servers for failover.

 

Server and Port

IP address and listening port of the database server.

Available when the Use replica set address check box is not selected.

 

Database

Name of the database.

 

Use SSL connection

Select this check box to enable the SSL encrypted connection.

Then you need to use the tSetKeystore component in the same Job to specify the authentication information.

For further information about tSetKeystore, see tSetKeystore.

Note that the SSL connection is available only for the version 2.4 + of MongoDB.

 

Required authentication

Select this check box to enable the database authentication.

 

Username and Password

DB user authentication data.

To enter the password, click the [...] button next to the password field, and then in the pop-up dialog box enter the password between double quotes and click OK to save the settings.

Available when the Required authentication check box is selected.

If the security system you have selected from the Authentication mechanism drop-down list is Kerberos, you need to enter the User principal, the Realm and the KDC server fields instead of the Username and the Password fields.

Advanced settings

tStatCatcher Statistics

Select this check box to collect the log data at a component level.

Global Variables

ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl + Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio User Guide.

Usage

This component is generally used with other MongoDB components, particularly tMongoClose.

Log4j

If you are using a subscription-based version of the Studio, the activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.

Limitation

n/a