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

Running on a Primary Node

Running on a Primary Node

When both primary and backup services are running, the failover behavior depends on the following sources of failure:
Service Process
When you disable the service process on a primary node, the service process fails over to a backup node. When the service process on a primary node shuts down unexpectedly, the Service Manager tries to restart the service process before failing it over to a backup node.
After the service process fails over to a backup node, the PowerCenter Integration Service restores the state of operation for the service and restores workflow schedules, service requests, and workflows.
The failover and recovery behavior of the PowerCenter Integration Service after a service process fails depends on the operating mode:
  • Normal. The PowerCenter Integration Service can recover the workflow based on the workflow state and recovery strategy. If the workflow was enabled for high availability recovery, the PowerCenter Integration Service restores the state of operation for the workflow and recovers the workflow from the point of interruption. The PowerCenter Integration Service performs failover and recovers the schedules, requests, and workflows. If a scheduled workflow is not enabled for high availability recovery, the PowerCenter Integration Service removes the workflow from the schedule.
  • Safe. The PowerCenter Integration Service does not run scheduled workflows and it disables schedule failover, automatic workflow recovery, workflow failover, and client request recovery. It performs failover and recovers the schedules, requests, and workflows when you enable the service in normal mode.
Service
When the PowerCenter Integration Service becomes unavailable, you must enable the service and start the service processes. You can manually recover workflows and sessions based on the state and the configured recovery strategy. Workflows start if they are configured to run continuously or on initialization. You must reschedule all other workflows.
The workflows that run after you start the service processes depend on the operating mode:
  • Normal. Workflows start if they are configured to run continuously or on initialization. You must reschedule all other workflows.
  • Safe. Scheduled workflows do not start. You must enable the service in normal mode to run the scheduled workflows.
Node
When the node becomes unavailable, the failover behavior is the same as the failover for the service process, based on the operating mode.