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Learn how to fix the output file creation error in Pentaho when scheduled jobs fail to run correctly on Windows Task Scheduler.
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Resolving the Output File Creation Error in Pentaho when Using Windows Task Scheduler

Running jobs and transformations in Pentaho is a common task for data processing, but issues can arise, especially when integrating with tools like Windows Task Scheduler. If you've encountered an Output File Creation Error while running your Pentaho jobs, you are not alone. In this guide, we will explore the problem in detail and provide a step-by-step guide on how to resolve it.

Understanding the Problem

You've set up your machine with Windows Server 2016 and Pentaho CE 7.0. After developing necessary jobs and transformations, you might run into an error when trying to execute these jobs from the Windows Task Scheduler. The error you're receiving looks something like this:

[[See Video to Reveal this Text or Code Snippet]]

This error can be frustrating, especially since you can run the .BAT file manually without any issues. The main culprit often lies in permission settings on the directories involved.

Common Causes of the Issue

Before diving deeper into solutions, let’s outline some common triggers that could lead to this error:

Incorrect Permissions: The script may not have the necessary permissions to write to the specified folder.

Path Misconfigurations: Even a small typo in the file path can lead to issues.

User Context: The account under which the Task Scheduler runs may not have access rights to the folder.

Solution: Check Permissions

Step 1: Verify Folder Permissions

Navigate to the Folder: Go to the directory specified in your Pentaho job, in this case, W:/Prueba.

Right-Click and Properties: Right-click on the folder and select Properties.

Security Tab: Click on the Security tab to review the permissions.

User Account: Ensure the account used by Windows Task Scheduler has Read/Write permissions on this folder.

Step 2: Modify Task Scheduler Configuration

Open Task Scheduler: Go to Task Scheduler in Windows.

Locate Your Task: Find the task that runs the Pentaho job and right-click it, then select Properties.

General Tab: In the General tab, under Security options, check the user account being used to run the task.

Run Whether User is Logged On or Not: If your task is set to run regardless of whether you are logged in, ensure the password for the account is up to date.

Step 3: Test the Job

After making the necessary adjustments:

Re-run the Task: Go back to Task Scheduler and run the job again.

Check the Logs: Review the output to ensure that there are no errors.

Conclusion

Understanding how to troubleshoot output file creation errors in Pentaho while using Windows Task Scheduler is crucial for smooth data processing workflows. By ensuring that your scripts have the correct permissions along with the right configurations in the Task Scheduler, you can avoid these common pitfalls and maintain seamless operations.

If you continue to face issues or have questions regarding your specific setup, don't hesitate to reach out for assistance!