How To Fix RSPC118 - Too many parallel processes for chosen server &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPC - Process Chains

• Message number: 118

• Message text: Too many parallel processes for chosen server &1

What causes this issue?

On the server &V1& you have chosen, there are only &V2& batch processes
available. The process chain has been designed in such as way that &V3&
processes must be processed parallel.

System Response

Only &V2& processes can be processed parallel. Note also that to be able
to start sub-chains, AT LEAST TWO free batch processes must be
available. Otherwise a lock situation may arise.
For more information, see SAP Note 621400.

How to fix this error?

Reduce the number of parallel processes in the chain or include sub-
chains. This warning applies to all relevant processes.

Procedure for System Administrators

Increase the number of batch processes available. You should note
however that it makes no sense to set up more batch processes than there
are CPUs on server &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSPC118 - Too many parallel processes for chosen server &1 ?

  The SAP error message RSPC118 indicates that there are too many parallel processes running on the specified server. This typically occurs in the context of background processing in SAP, particularly when using the SAP Process Chain (PC) functionality in the Data Warehousing environment.
  Cause:
  
  Exceeding Maximum Parallel Processes: Each server in SAP has a limit on the number of parallel processes it can handle. If this limit is exceeded, the system will throw the RSPC118 error.
  Configuration Settings: The maximum number of parallel processes is defined in the server configuration. If the configuration allows for a limited number of processes, and multiple jobs are triggered simultaneously, this error can occur.
  Long-Running Jobs: If there are long-running jobs that occupy the available slots, new jobs may not be able to start, leading to this error.
  Resource Constraints: The server may be under heavy load, causing it to reach its limit on parallel processing.
  
  Solution:
  
  
  Check and Adjust Configuration:
  
  Review the configuration settings for the server to see the maximum number of parallel processes allowed. This can be done in transaction code RZ10 or RZ11 (for profile parameters).
  Increase the limit if necessary, but ensure that the server has the resources to handle the increased load.
  
  
  
  Monitor and Manage Background Jobs:
  
  Use transaction SM37 to monitor background jobs. Identify any long-running or stuck jobs and take appropriate action (e.g., cancel or reschedule them).
  Consider staggering the execution of jobs to avoid hitting the parallel processing limit.
  
  
  
  Optimize Process Chains:
  
  Review the design of your process chains to ensure they are optimized and do not trigger too many parallel processes unnecessarily.
  Use the "Wait for" functionality in process chains to control the execution flow and reduce the number of concurrent processes.
  
  
  
  Server Performance:
  
  Ensure that the server has adequate resources (CPU, memory, etc.) to handle the expected load. If necessary, consider scaling up the server or distributing the load across multiple servers.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSPC: Process Chain Maintenance
  SM37: Job Monitoring
  RZ10/RZ11: Profile Parameter Maintenance
  
  
  SAP Documentation: Refer to the official SAP documentation for more details on process chains and background processing.
  Performance Monitoring Tools: Utilize tools like SAP Solution Manager or other monitoring solutions to keep track of system performance and job execution.
  
  By following these steps, you should be able to resolve the RSPC118 error and manage parallel processing more effectively in your SAP environment.