How To Fix RT217 - Number of dialog work processes

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 217

• Message text: Number of dialog work processes

What causes this issue?

Technical Constraints:
There must be at least two dialog work processes on every server.
You can set the number of these work processes using the system
parameter <ZH>rdisp/wp_no_dia</>.
For further information about this topic, see SAP Note 39412 (How many
work processes to configure).

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT217 - Number of dialog work processes ?

  The SAP error message RT217 indicates that the number of dialog work processes configured in the SAP system is insufficient to handle the current workload. This can lead to performance issues, such as slow response times or users being unable to log in.
  Cause:
  
  High User Load: An increase in the number of concurrent users or transactions can exceed the capacity of the configured dialog work processes.
  Configuration Settings: The number of dialog work processes may have been set too low during system configuration.
  Long-Running Transactions: If there are transactions that take a long time to complete, they can occupy dialog work processes for extended periods, leading to a backlog.
  System Performance Issues: Other performance bottlenecks in the system (e.g., database performance, network issues) can exacerbate the problem.
  
  Solution:
  
  
  Increase Dialog Work Processes:
  
  Go to the SAP system profile parameters and increase the number of dialog work processes. This can be done in the instance profile (transaction RZ10).
  Look for the parameter rdisp/wp_no_dia and increase its value based on the expected user load and performance requirements.
  
  
  
  Monitor Work Process Usage:
  
  Use transaction SM50 (Work Process Overview) to monitor the current usage of dialog work processes. This can help identify if there are any long-running transactions that need to be addressed.
  
  
  
  Optimize Long-Running Transactions:
  
  Identify and optimize any transactions that are taking too long to complete. This may involve reviewing the code, database queries, or other factors that could be causing delays.
  
  
  
  Load Balancing:
  
  If you have multiple application servers, ensure that the load is balanced across them. This can help distribute the workload more evenly and prevent any single server from becoming a bottleneck.
  
  
  
  Review System Performance:
  
  Check for other performance issues in the system that may be affecting dialog work processes. This includes database performance, network latency, and hardware resources.
  
  
  
  User Training:
  
  Ensure that users are trained to use the system efficiently, which can help reduce unnecessary load on dialog work processes.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to dialog work processes.
  SAP Documentation: Review the official SAP documentation for best practices on configuring and managing work processes.
  Performance Monitoring Tools: Consider using SAP Solution Manager or other performance monitoring tools to gain insights into system performance and user activity.
  
  By addressing the underlying causes and implementing the suggested solutions, you can resolve the RT217 error and improve the performance of your SAP system.