tParallelize Properties - 6.1

Talend Components Reference Guide

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 Open Studio for Big Data
Talend Open Studio for Data Integration
Talend Open Studio for Data Quality
Talend Open Studio for ESB
Talend Open Studio for MDM
Talend Real-Time Big Data Platform
Data Governance
Data Quality and Preparation
Design and Development
Talend Studio

Component family




tParallelize allows you to synchronize the execution of a subjob with the execution of other subjobs in your main Job.


tParallelize helps you manage complex Job systems. It executes several subjobs simultaneously and synchronizes the execution of a subjob with other sub-jobs within the main Job.

Basic settings

Wait For

end of first subjob: sequence the relevant subjob to be executed at the end of the first subjob.



end of all subjobs: sequence the relevant subjob to be executed at the end of all subjobs.


Sleep Duration

Set the time interval in seconds between each check for subjob execution.

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.


This component can be used as either a start or middle component in a main Job built of numerous subjobs. It can be connected to preceding or following components using OnSubjobOk, Parallelize or Synchronize links. You can use as many tParallelize components as you want in your master Job.


Outgoing links (from this component to another):

Trigger: Synchronize; Parallelize.

Incoming links (from one component to this one):

Trigger: On Subjob Ok; On Subjob Error; Run if; On Component Ok; On Component Error.

For further information regarding connections, see Talend Studio User Guide.


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