How To Fix PMMO_DISTRIBUTION042 - Not all failed parallel sessions could be successfully restarted

SAP Error Message - Details

• Message type: E = Error

• Message class: PMMO_DISTRIBUTION - Messages for Distribution in PMMO

• Message number: 042

• Message text: Not all failed parallel sessions could be successfully restarted

What causes this issue?

Some parallel processing sessions failed due to an out-of-memory runtime
error. The system tried to automatically correct the error by
dynamically adjusting the
<DS:DE.PMMO_DISTR_PACKAGE_SIZE_D>package sizes </>used for the parallel
process.
This process was not successful for all parallel sessions.

System Response

Some data could not be processed.

How to fix this error?

Check the error log for termination messages.

Procedure for System Administrators

INCLUDE PMMO_MMI_CUSTOMIZABLE_MSG OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PMMO_DISTRIBUTION042 - Not all failed parallel sessions could be successfully restarted ?

  The SAP error message PMMO_DISTRIBUTION042 indicates that not all failed parallel sessions could be successfully restarted. This error typically occurs in the context of parallel processing in SAP, particularly when dealing with background jobs or parallel processing tasks that have encountered issues.
  Cause:
  
  Resource Limitations: The system may be facing resource constraints, such as insufficient memory or CPU availability, which can prevent the successful restart of parallel sessions.
  Configuration Issues: There may be misconfigurations in the parallel processing settings or job scheduling parameters.
  Data Issues: The data being processed may have inconsistencies or errors that prevent the sessions from completing successfully.
  System Errors: There could be underlying system errors or issues with the SAP application that are causing the sessions to fail.
  Locking Issues: If the sessions are trying to access locked resources, they may fail to restart.
  
  Solution:
  
  Check System Resources: Monitor the system's resource usage (CPU, memory, etc.) and ensure that there are enough resources available for the parallel processing tasks.
  Review Job Logs: Check the logs of the failed jobs to identify specific errors or issues that caused the sessions to fail. This can provide insights into what went wrong.
  Adjust Configuration: Review and adjust the configuration settings for parallel processing. This may include increasing the number of parallel processes allowed or adjusting timeouts.
  Data Validation: Validate the data being processed to ensure there are no inconsistencies or errors that could be causing the failures.
  Retry Mechanism: Implement a retry mechanism for failed sessions, if applicable, to allow them to attempt to restart after a certain period.
  SAP Notes: Check for any relevant SAP Notes or patches that may address known issues related to this error message. Applying the latest updates can sometimes resolve underlying problems.
  Consult SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on the system configuration and logs.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SM37 (Job Monitoring) to check the status of background jobs and analyze their logs.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to parallel processing and job scheduling for best practices and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the PMMO_DISTRIBUTION042 error effectively.