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  1. Preface
  2. Understanding the Repository
  3. Using the Repository Manager
  4. Folders
  5. Managing Object Permissions
  6. Local and Global Shortcuts
  7. Team-Based Development with Versioned Objects
  8. Labels
  9. Object Queries
  10. Team-Based Development with Deployment Groups
  11. Copying Folders and Deployment Groups
  12. Exporting and Importing Objects
  13. Exchanging Metadata
  14. Copying Objects
  15. Metadata Extensions
  16. MX Views Reference
  17. PowerCenter Reports Reference

Repository Guide

Repository Guide

Locking the Same Object

Locking the Same Object

The repository permits multiple in-use locks, one write-intent lock, and one execute lock simultaneously on each repository object. This means that you can edit a session while the Integration Service runs the session and another user views the session.
For example, if you obtain a write-intent lock on a workflow before the Integration Service starts the workflow, the Integration Service runs the version of the workflow existing in the repository when the workflow starts. If you save changes to the repository before the workflow starts, the Integration Service runs the newly-edited workflow. If you save changes after the workflow starts, the Integration Service runs the original workflow and the repository updates the changes after the workflow completes.
When the workflow starts, the Integration Service obtains an execute lock on the workflow and tasks in the workflow. If you try to start the workflow, the repository displays a message stating that the workflow is already running. If you try to edit the workflow or task when another user has a write-intent lock, you receive an in-use lock.

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