How To Fix RZ395 - Number of work processes exceeds rdisp/configurable_wp_no.

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 395

• Message text: Number of work processes exceeds rdisp/configurable_wp_no.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RZ395 - Number of work processes exceeds rdisp/configurable_wp_no. ?

  The SAP error message RZ395 indicates that the number of work processes in the SAP system has exceeded the limit defined by the configuration parameter rdisp/configurable_wp_no. This can lead to performance issues or the inability to process additional requests.
  Cause:
  
  Configuration Limit: The parameter rdisp/configurable_wp_no defines the maximum number of work processes that can be started in the SAP system. If the number of active work processes exceeds this limit, the error will be triggered.
  High Load: A sudden increase in user activity or background jobs can lead to a spike in the number of work processes being utilized.
  Long-Running Processes: If there are long-running transactions or background jobs, they can occupy work processes for extended periods, leading to exhaustion of available processes.
  System Configuration: The system may not be optimally configured for the current workload, leading to insufficient work processes.
  
  Solution:
  
  
  Increase Work Process Limit:
  
  You can increase the value of the rdisp/configurable_wp_no parameter in the instance profile. This can be done using transaction RZ10 or by editing the instance profile directly.
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Monitor Work Processes:
  
  Use transaction SM50 to monitor the status of work processes. Identify any long-running processes that may be holding up resources.
  If necessary, terminate or optimize these processes.
  
  
  
  Optimize Background Jobs:
  
  Review and optimize background jobs to ensure they are not consuming excessive resources. You can use transaction SM37 to analyze job logs and performance.
  
  
  
  Load Balancing:
  
  If you have multiple application servers, ensure that the load is balanced across them. This can help distribute the workload and prevent any single server from being overwhelmed.
  
  
  
  Review System Configuration:
  
  Ensure that the system is configured appropriately for the expected workload. This includes checking the number of dialog, background, and update work processes.
  
  
  
  Check for System Bottlenecks:
  
  Investigate other potential bottlenecks in the system, such as database performance or network issues, which may be contributing to the problem.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  RZ10: To change instance profile parameters.
  SM50: To monitor work processes.
  SM37: To monitor background jobs.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to work process management.
  
  
  Documentation: Refer to the SAP Help Portal for detailed documentation on work process management and configuration parameters.
  
  
  By following these steps, you should be able to resolve the RZ395 error and optimize the performance of your SAP system.