Migrating to Oracle Database 19C: Understanding the Impact on Concurrent Jobs in Oracle EBS 12.1.3

Introduction

As organizations migrate their infrastructure to newer versions of software, it’s not uncommon for issues like concurrent job failures to arise. In this article, we’ll delve into the details of a specific issue affecting Oracle EBS 12.1.3 after migrating to Oracle Database 19C. We’ll explore the cause of the problem and discuss potential solutions.

Understanding Concurrent Jobs in Oracle EBS

Concurrent jobs play a crucial role in Oracle E-Business Suite (EBS), enabling businesses to automate tasks, improve efficiency, and reduce manual intervention. These jobs are executed as part of the application’s workflow and can be used for various purposes, such as updating inventory levels or processing financial transactions.

The Issue: FDPSTP Failed Due to ORA-20100

After migrating Oracle EBS 12.1.3 to Oracle Database 19C, concurrent jobs began failing with an error message indicating that the FND_FILE directory was invalid. This error is accompanied by an ORA-20100 warning, which suggests a problem with temporary file creation for FND_FILE.

Understanding UTL_FILE_DIR and Its Migration

UTL_FILE_DIR is a database initialization parameter used for PL/SQL file input/output operations. However, in Oracle Database 19C, this parameter has been deprecated in favor of using database directory objects. This change affects how concurrent jobs handle file I/O operations.

The Impact of Deprecating UTL_FILE_DIR

The deprecation of UTL_FILE_DIR means that any code relying on this parameter must be updated to use database directories instead. Failure to do so can result in errors like the one experienced by our readers, where the FND_FILE directory is invalid and cannot be used for concurrent job operations.

Using Database Directories for PL/SQL File I/O

To resolve issues related to UTL_FILE_DIR, Oracle EBS development has provided a utility to migrate and manage defined PL/SQL file input/output directories. This utility allows administrators to update their code to use database directories instead of the deprecated parameter.

Best Practices for Migration

When migrating from UTL_FILE_DIR to database directories, it’s essential to follow best practices to ensure a smooth transition:

1. Review your configuration: Check your current configuration and identify any instances where UTL_FILE_DIR is being used.
2. Identify dependencies: Determine which components of your application rely on UTL_FILE_DIR and need to be updated.
3. Use the utility provided by Oracle EBS development: Leverage the utility to migrate and manage your defined PL/SQL file input/output directories.

Conclusion

Migrating to Oracle Database 19C can bring numerous benefits, including improved security and performance. However, it’s not uncommon for issues like concurrent job failures to arise during this process. By understanding the impact of deprecating UTL_FILE_DIR and following best practices for migration, organizations can minimize downtime and ensure a successful transition.

Troubleshooting Tips

Verifying Directory Existence

1. Check that the directory specified in your configuration exists on the database server.
2. Verify that the directory has the correct permissions to access it.

Resolving Issues with Temporary Files

1. Ensure that the temporary file creation process is not failing due to issues like insufficient disk space or permissions problems.
2. Investigate any errors related to file system operations and resolve them before proceeding further.

Additional Resources

For more information on migrating from UTL_FILE_DIR to database directories, refer to:

• “Using UTL_FILE_DIR or Database Directories for PL/SQL File I/O in Oracle E-Business Suite Releases 12.1 and 12.2” (Doc ID 2525754.1)
• Oracle’s official documentation on database directory objects
• The utility provided by Oracle EBS development to migrate and manage defined PL/SQL file input/output directories

Common Mistakes to Avoid

Failing to Update Configuration

Failing to update your configuration to use database directories instead of UTL_FILE_DIR can lead to errors and downtime. Make sure to review and update your configurations accordingly.

Missing Dependencies in the Migration Process

Missing dependencies during the migration process can result in unexpected behavior or errors. Ensure that you identify all components relying on UTL_FILE_DIR and update them as necessary.

Troubleshooting Common Issues

ORA-20100 Error

If you encounter an ORA-20100 error, it’s essential to investigate the cause of the issue:

1. Check for any issues with temporary file creation.
2. Verify that the directory specified in your configuration exists and has the correct permissions.

Concurrent Job Failures

Concurrent job failures can be caused by a range of factors, including issues with temporary files or database directory objects. Investigate the cause of the failure:

1. Check for any errors related to file system operations.
2. Verify that the database directories are correctly configured and accessible.

By understanding the impact of deprecating UTL_FILE_DIR and following best practices for migration, organizations can minimize downtime and ensure a successful transition.

Last modified on 2024-07-18