Table of Contents

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  1. Preface
  2. Analyst Service
  3. Content Management Service
  4. Data Integration Service
  5. Data Integration Service Architecture
  6. Data Integration Service Management
  7. Data Integration Service Grid
  8. Data Integration Service Applications
  9. Metadata Manager Service
  10. Model Repository Service
  11. PowerCenter Integration Service
  12. PowerCenter Integration Service Architecture
  13. High Availability for the PowerCenter Integration Service
  14. PowerCenter Repository Service
  15. PowerCenter Repository Management
  16. PowerExchange Listener Service
  17. PowerExchange Logger Service
  18. SAP BW Service
  19. Search Service
  20. System Services
  21. Test Data Manager Service
  22. Web Services Hub
  23. Application Service Upgrade
  24. Application Service Databases
  25. Connecting to Databases from Windows
  26. Connecting to Databases from UNIX
  27. Updating the DynamicSections Parameter of a DB2 Database

Pooling Properties in PowerExchange Connection Objects

Pooling Properties in PowerExchange Connection Objects

Configure connection pooling properties in the
Pooling
view for a PowerExchange database connection.
Enable Connection Pooling
Enables connection pooling. When you enable connection pooling, each connection pool retains idle PowerExchange Listener connection instances in memory. When you disable connection pooling, the DTM process or the Data Integration Service process stops all pooling activity. To delete the pool of idle connections, you must restart the Data Integration Service.
Default is enabled for DB2 for i5/OS and DB2 for z/OS connections. Default is disabled for Adabas, IMS, Sequential, and VSAM connections.
Minimum # of Connections
The minimum number of idle connection instances that a pool maintains for a database connection after the maximum idle time is met. If multiple database connections are associated with a PowerExchange Listener, PowerExchange determines the minimum number of connections to the PowerExchange Listener by adding the values for each database connection.
Maximum # of Connections
The maximum number of idle connection instances that a pool maintains for a database connection before the maximum idle time is met. If multiple database connections are associated with a PowerExchange Listener, PowerExchange determines the maximum number of connections to the PowerExchange Listener node by adding the values for each database connection.
Verify that the value of MAXTASKS in the DBMOVER configuration file is large enough to accommodate twice the maximum number of connections to the PowerExchange Listener node.
Enter 0 to specify an unlimited connection pool size.
Default is 15.
Maximum Idle Time
The number of seconds that a connection instance that exceeds the minimum number of connection instances can remain idle before the connection pool drops it. The connection pool ignores the idle time when the connection instance does not exceed the minimum number of idle connection instances.
If multiple database connections are associated with a PowerExchange Listener, PowerExchange calculates the arithmetic mean of the non-zero values for each database connection to determine the maximum idle time for connections to the same Listener.
Default is 120.
Assign the same maximum idle time to each database connection.