Table of Contents

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  1. Preface
  2. Analyst Service
  3. Catalog Service
  4. Content Management Service
  5. Data Integration Service
  6. Data Integration Service Architecture
  7. Data Integration Service Management
  8. Data Integration Service Grid
  9. Data Integration Service REST API
  10. Data Integration Service Applications
  11. Data Privacy Management Service
  12. Enterprise Data Preparation Service
  13. Interactive Data Preparation Service
  14. Informatica Cluster Service
  15. Mass Ingestion Service
  16. Metadata Access Service
  17. Metadata Manager Service
  18. Model Repository Service
  19. PowerCenter Integration Service
  20. PowerCenter Integration Service Architecture
  21. High Availability for the PowerCenter Integration Service
  22. PowerCenter Repository Service
  23. PowerCenter Repository Management
  24. PowerExchange Listener Service
  25. PowerExchange Logger Service
  26. SAP BW Service
  27. Search Service
  28. System Services
  29. Test Data Manager Service
  30. Test Data Warehouse Service
  31. Web Services Hub
  32. Application Service Upgrade
  33. Appendix A: Application Service Databases
  34. Appendix B: Connecting to Databases from Windows
  35. Appendix C: Connecting to Databases from UNIX or Linux
  36. Appendix D: Updating the DynamicSections Parameter of a DB2 Database

Connection Pool Management

Connection Pool Management

When a DTM process or the Data Integration Service process runs a job, it requests a connection instance from the pool. If an idle connection instance exists, the connection pool releases it to the DTM process or the Data Integration Service process. If the connection pool does not have an idle connection instance, the DTM process or the Data Integration Service process creates an active connection instance.
When the DTM process or the Data Integration Service process completes the job, it releases the active connection instance to the pool as an idle connection instance. If the connection pool contains the maximum number of idle connection instances, the process drops the active connection instance instead of releasing it to the pool.
The DTM process or the Data Integration Service process drops an idle connection instance from the pool when the following conditions are true:
  • A connection instance reaches the maximum idle time.
  • The connection pool exceeds the minimum number of idle connections.
When you update the user name, password, or connection string for a database connection that has connection pooling enabled, the updates take effect immediately. Subsequent connection requests use the updated information. Also, the connection pool library drops all idle connections and restarts the connection pool. It does not return any connection instances that are active at the time of the restart to the connection pool when complete.
If you update any other database connection property, you must restart the Data Integration Service to apply the updates.