How To Fix SHDB_PFW302 - Dispatcher Timeout: &2 waited &4 sec for &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SHDB_PFW -

• Message number: 302

• Message text: Dispatcher Timeout: &2 waited &4 sec for &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SHDB_PFW302 - Dispatcher Timeout: &2 waited &4 sec for &1 ?

  The SAP error message SHDB_PFW302 Dispatcher Timeout: &2 waited &4 sec for &1 typically indicates that a process in the SAP system is taking too long to respond, leading to a timeout. This error is often encountered when using the SAP GUI scripting or when executing batch input sessions.
  Cause:
  
  Long-running Processes: The transaction or process being executed is taking longer than the configured timeout period.
  System Performance Issues: High system load, insufficient resources (CPU, memory), or database performance issues can lead to delays.
  Network Latency: Slow network connections can cause delays in communication between the client and the SAP server.
  Lock Contention: If multiple processes are trying to access the same resource, it can lead to delays and timeouts.
  Configuration Settings: The timeout settings for the dispatcher may be set too low for the operations being performed.
  
  Solution:
  
  
  Increase Timeout Settings: 
  
  You can increase the timeout settings in the SAP GUI or the server configuration. This can be done by adjusting the rdisp/timeout parameter in the instance profile.
  For example, you can set it to a higher value (e.g., 600 seconds) to allow longer-running processes to complete.
  
  
  
  Optimize Processes:
  
  Review the transaction or batch input session to identify any inefficiencies or long-running operations that can be optimized.
  Ensure that the processes are not waiting on locks or other resources.
  
  
  
  Monitor System Performance:
  
  Use transaction codes like ST03N, ST06, or SM50 to monitor system performance and identify any bottlenecks.
  Check for high CPU or memory usage and consider scaling resources if necessary.
  
  
  
  Check Network Performance:
  
  Ensure that the network connection between the client and the SAP server is stable and has sufficient bandwidth.
  Use network monitoring tools to identify any latency issues.
  
  
  
  Review Lock Management:
  
  Use transaction SM12 to check for locks that may be causing contention and resolve any unnecessary locks.
  
  
  
  Batch Input Session Management:
  
  If the error occurs during batch input processing, consider breaking down large sessions into smaller ones to reduce processing time.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM50: Monitor active processes.
  SM66: Monitor global processes.
  ST22: Check for dumps that may provide additional context.
  ST03N: Analyze workload and performance.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to dispatcher timeouts or performance tuning.
  
  
  Documentation: Review SAP documentation on performance tuning and batch input processing for best practices.
  
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the SHDB_PFW302 error and improve the performance of your SAP system.