Communities
A collaborative platform to connect and grow with like-minded Informaticans across the globe
Product Communities
Connect and collaborate with Informatica experts and champions
Discussions
Have a question? Start a Discussion and get immediate answers you are looking for
User Groups
Customer-organized groups that meet online and in-person. Join today to network, share ideas, and get tips on how to get the most out of Informatica
Get Started
Community Guidelines
Knowledge Center
Troubleshooting documents, product guides, how to videos, best practices, and more
Knowledge Base
One-stop self-service portal for solutions, FAQs, Whitepapers, How Tos, Videos, and more
Support TV
Video channel for step-by-step instructions to use our products, best practices, troubleshooting tips, and much more
Documentation
Information library of the latest product documents
Velocity (Best Practices)
Best practices and use cases from the Implementation team
Learn
Rich resources to help you leverage full capabilities of our products
Trainings
Role-based training programs for the best ROI
Certifications
Get certified on Informatica products. Free, Foundation, or Professional
Product Learning Paths
Free and unlimited modules based on your expertise level and journey
Resources
Library of content to help you leverage the best of Informatica products
Tech Tuesdays Webinars
Most popular webinars on product architecture, best practices, and more
Product Availability Matrix
Product Availability Matrix statements of Informatica products
SupportFlash
Monthly support newsletter
Support Documents
Informatica Support Guide and Statements, Quick Start Guides, and Cloud Product Description Schedule
Product Lifecycle
End of Life statements of Informatica products
Ideas
Events
Change Request Tracking
Marketplace
English
  • Common Content for Data Engineering 10.2.1
  • All Products

Table of Contents

Search

  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. Mass Ingestion Service
  10. Metadata Access Service
  11. Metadata Manager Service
  12. Model Repository Service
  13. PowerCenter Integration Service
  14. PowerCenter Integration Service Architecture
  15. High Availability for the PowerCenter Integration Service
  16. PowerCenter Repository Service
  17. PowerCenter Repository Management
  18. PowerExchange Listener Service
  19. PowerExchange Logger Service
  20. SAP BW Service
  21. Search Service
  22. System Services
  23. Test Data Manager Service
  24. Test Data Warehouse Service
  25. Web Services Hub
  26. Application Service Upgrade
  27. Application Service Databases
  28. Connecting to Databases from Windows
  29. Connecting to Databases from UNIX
  30. Updating the DynamicSections Parameter of a DB2 Database

Application Service Guide

Application Service Guide

Back Next

PowerCenter Integration Service Process

PowerCenter Integration Service Process

The PowerCenter Integration Service starts a PowerCenter Integration Service process to run and monitor workflows. The PowerCenter Integration Service process is also known as the pmserver process. The PowerCenter Integration Service process accepts requests from the PowerCenter Client and from
pmcmd
. It performs the following tasks:
  • Manage workflow scheduling.
  • Lock and read the workflow.
  • Read the parameter file.
  • Create the workflow log.
  • Run workflow tasks and evaluates the conditional links connecting tasks.
  • Start the DTM process or processes to run the session.
  • Write historical run information to the repository.
  • Send post-session email in the event of a DTM failure.

Manage PowerCenter Workflow Scheduling

The PowerCenter Integration Service process manages workflow scheduling in the following situations:
  • When you start the PowerCenter Integration Service. When you start the PowerCenter Integration Service, it queries the repository for a list of workflows configured to run on it.
  • When you save a workflow. When you save a workflow assigned to a PowerCenter Integration Service to the repository, the PowerCenter Integration Service process adds the workflow to or removes the workflow from the schedule queue.

Lock and Read the PowerCenter Workflow

When the PowerCenter Integration Service process starts a workflow, it requests an execute lock on the workflow from the repository. The execute lock allows the PowerCenter Integration Service process to run the workflow and prevents you from starting the workflow again until it completes. If the workflow is already locked, the PowerCenter Integration Service process cannot start the workflow. A workflow may be locked if it is already running.
The PowerCenter Integration Service process also reads the workflow from the repository at workflow run time. The PowerCenter Integration Service process reads all links and tasks in the workflow except sessions and worklet instances. The PowerCenter Integration Service process reads session instance information from the repository. The DTM retrieves the session and mapping from the repository at session run time. The PowerCenter Integration Service process reads worklets from the repository when the worklet starts.

Read the Parameter File

When the workflow starts, the PowerCenter Integration Service process checks the workflow properties for use of a parameter file. If the workflow uses a parameter file, the PowerCenter Integration Service process reads the parameter file and expands the variable values for the workflow and any worklets invoked by the workflow.
The parameter file can also contain mapping parameters and variables and session parameters for sessions in the workflow, as well as service and service process variables for the service process that runs the workflow. When starting the DTM, the PowerCenter Integration Service process passes the parameter file name to the DTM.

Create the PowerCenter Workflow Log

The PowerCenter Integration Service process creates a log for the PowerCenter workflow. The workflow log contains a history of the workflow run, including initialization, workflow task status, and error messages. You can use information in the workflow log in conjunction with the PowerCenter Integration Service log and session log to troubleshoot system, workflow, or session problems.

Run the PowerCenter Workflow Tasks

The PowerCenter Integration Service process runs workflow tasks according to the conditional links connecting the tasks. Links define the order of execution for workflow tasks. When a task in the workflow completes, the PowerCenter Integration Service process evaluates the completed task according to specified conditions, such as success or failure. Based on the result of the evaluation, the PowerCenter Integration Service process runs successive links and tasks.

Run the PowerCenter Workflows Across the Nodes in a Grid

When you run a PowerCenter Integration Service on a grid, the service processes run workflow tasks across the nodes of the grid. The domain designates one service process as the master service process. The master service process monitors the worker service processes running on separate nodes. The worker service processes run workflows across the nodes in a grid.

Start the DTM Process

When the workflow reaches a session, the PowerCenter Integration Service process starts the DTM process. The PowerCenter Integration Service process provides the DTM process with session and parameter file information that allows the DTM to retrieve the session and mapping metadata from the repository. When you run a session on a grid, the worker service process starts multiple DTM processes that run groups of session threads.
When you use operating system profiles, the PowerCenter Integration Services starts the DTM process with the system user account you specify in the operating system profile.

Write Historical Information

The PowerCenter Integration Service process monitors the status of workflow tasks during the workflow run. When workflow tasks start or finish, the PowerCenter Integration Service process writes historical run information to the repository. Historical run information for tasks includes start and completion times and completion status. Historical run information for sessions also includes source read statistics, target load statistics, and number of errors. You can view this information using the PowerCenter Workflow Monitor.

Send Post-Session Email

The PowerCenter Integration Service process sends post-session email if the DTM terminates abnormally. The DTM sends post-session email in all other cases.
0 COMMENTS
We’d like to hear from you!