How To Fix /PF1/MSG_COMM_POLLER009 - Please configure /PF1/t_max_processes..!!

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_COMM_POLLER -

• Message number: 009

• Message text: Please configure /PF1/t_max_processes..!!

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_COMM_POLLER009 - Please configure /PF1/t_max_processes..!! ?

  The SAP error message /PF1/MSG_COMM_POLLER009 indicates that there is a configuration issue related to the process management of the communication poller in the SAP system. Specifically, it suggests that the parameter /PF1/t_max_processes has not been configured, which is necessary for the proper functioning of the communication poller.
  Cause:
  The error occurs when the system attempts to start the communication poller but finds that the maximum number of processes allowed for it has not been set. This can happen if the parameter has not been defined in the system profile or if it has been set to an invalid value.
  Solution:
  To resolve this issue, you need to configure the parameter /PF1/t_max_processes in the SAP system. Here are the steps to do this:
  
  
  Access the SAP System Profile:
  
  Use transaction code RZ10 to access the profile parameters.
  
  
  
  Edit the Profile:
  
  Select the appropriate instance profile (usually the one for your application server).
  Click on "Change" to edit the profile.
  
  
  
  Add the Parameter:
  
  Add the parameter /PF1/t_max_processes and set it to a suitable value. The value should be based on your system's capacity and requirements. A common starting point might be 5 or 10, but this can vary based on your specific needs.
  
  
  
  Save the Changes:
  
  Save the changes to the profile.
  
  
  
  Restart the SAP Instance:
  
  For the changes to take effect, you will need to restart the SAP instance. This can be done using transaction SM51 to see the list of instances and then using the appropriate method to restart.
  
  
  
  Verify the Configuration:
  
  After the restart, you can verify that the parameter has been set correctly by using transaction RZ11 and checking the value of /PF1/t_max_processes.
  
  
  
  Related Information:
  
  Documentation: Check the SAP Help Portal or the specific documentation related to the communication poller for more details on the configuration parameters.
  Performance Considerations: Setting the maximum number of processes too high can lead to resource contention, while setting it too low may not utilize the system's capabilities effectively. Monitor the system performance after making changes.
  SAP Notes: Look for any relevant SAP Notes that might provide additional guidance or updates related to this error message.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.