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EBS Concurrent Manager

Posted on November 30th, 2010 by Sanjit Anand |Print This Post Print This Post |Email This Post Email This Post

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Concurrent program are the batch Processing Sub-System. These programs are run as operating system background processes.These programs may be written using a variety of Oracle tools, programming languages for executables, or OS scripts.

  • The Internal Concurrent Manager (ICM) controls all other concurrent managers. It administers the startup and shutdown of managers as defined by their work shift, monitors for process failure, and cleans up if a failure occurs.
  • The Conflict Resolution Manager (CRM) enforces rules designed to ensure that incompatible concurrent requests do not run in the same conflict domain.
  • The Standard Manager as shipped with Oracle Applications will accept and run any concurrent requests.

dgreybarrowConcurrent Manager - Tables

Here are the list of table assocaited with concurrent programs.

Table Content
FND_CONCURRENT_REQUESTS Details of user requests, including status, start date, and completion date
FND_CONCURRENT_PROGRAMS Details of concurrent programs, including execution method, whether the program is constrained, and whether it must be run alone
FND_CONCURRENT_PROCESSES Cross-references between concurrent requests and queues, and a history of concurrent manager processes
FND_CONCURRENT_QUEUES Information about each of the concurrent manager queues

dgreybarrowConcurrent Request - Lifecycle

Here are summary for concurrent prgram phases in a typical lifecycle of concurrent program.

Phase Activity
Pending / Normal The request is waiting to be run
Pending / Standby The request is waiting at CRM
Running / Normal The request is running
Completed / Normal The request has finished
Inactive / No Manager The request cannot be run. No manager available to process it.

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