Sequence of task execution - 6.3

Talend Administration Center User Guide

EnrichVersion
6.3
EnrichProdName
Talend Big Data
Talend Big Data Platform
Talend Data Fabric
Talend Data Integration
Talend Data Management Platform
Talend Data Services Platform
Talend ESB
Talend Real-Time Big Data Platform
task
Administration and Monitoring
Deployment
EnrichPlatform
Talend Administration Center

Warning

Only users that have the Operation Manager role and rights can have read-write access to this page. Other types of users can have read-only access or no access to the page. For further information on access rights, see User roles/rights in the Administration Center. When a user of the Administration Center opens this page, he/she will have access only to the items for which the user has been granted the right authorization by the Administrator.

Once the task triggering is launched, you can follow every stage of the task sequence on the Job Conductor page of Talend Administration Center.

You have full control over the sequencing, as you have the possibility to launch, pause or kill a task execution at any time even though the trigger you possibly have set has already started. For more information regarding the controls over the execution, see Working with Job execution tasks.

The task execution sequence is made of various phases including: script generation, Job deployment, Job execution and log or error.

The Status changes at every stage of the task execution.

The execution and error status is refreshed automatically, but you can refresh the display any time by clicking Refresh on the toolbar.

Generating scripts

As defined in Talend Administration Center, the task fetches the relevant Job script in the relevant project from the Talend Studio Repository and generates the code.

On the Job Conductor page, the Status column shows the Job script generating status.

Once the generation is complete, the status changes to Ready to deploy. The code generated is now ready to be deployed on the execution server(s).

If you want to manually launch the generation phase, click on the relevant button on the top toolbar. For more information about the controls, see Working with Job execution tasks.

Deploying and preparing Job execution

Once the Job script is generated, you can deploy the Job on the execution servers.

Note

Make sure the agent provided is running on the Job sever as described in the relevant readme.txt.

On the Job Conductor page, you can view the task status changing from Ready to deploy to Requesting deployment.

If you want to manually launch the deployment phase, click on the relevant button on the top toolbar. For more information about the controls, see Working with Job execution tasks.

Once the deployment is complete, the status changes to Ready to install. This means that the server has received the Job and is now ready to execute it.

Running Jobs

Once the Job is deployed and installed on the relevant execution servers, the Job can thus be executed just like you would run it within Talend Studio.

On the Job Conductor page, you can view the Job status changing from Ready to run to Requesting run.

If you want to manually launch the run phase, click on the relevant button on the top toolbar. For more information about the controls, see Working with Job execution tasks.

Once the execution is complete, the status switches back to Ready to run. The Job can be executed again if needed.

In case the task did not complete properly, check the Error Status column as well as the task log for the Job completion information.

Note

If the statistics mode is enabled for your Job, the [Real time statistics] window displays in front of the Job conductor page, once you click Run to execute it. For more information, see Recovering job execution.

Errors and Logs

If an error is generated during the task triggering, the message is displayed in the Error Status column.

How to check for error messages

If an error is generated during the task triggering, the message is displayed in the Error Status column.

Check the connections and settings before triggering again the task or executing it directly from the Job Conductor page.

How to display log information

To display log information for a given task:

  1. From the Job Conductor page, select the task from the task list.

  2. In the Actions column, click the Display last execution details icon.

    A pop-up window opens with the last execution details of the selected task. From this window, you can visualize the logs, the context values and the advanced information of the task.

  3. Depending on the size of the task log, you can either watch a preview directly in the Log tab or download the complete log file by clicking the Download entire log button.

    Note that log files are stored in a folder for which the path has been defined in the Job Conductor node of the Configuration page. For more information, see the section about the Job Conductor parameters in Configuring Talend Administration Center.