How To Fix FDT_WD_TOOLS170 - Timeout occurred during debug session; restart to continue

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_TOOLS - Message Class for tools

• Message number: 170

• Message text: Timeout occurred during debug session; restart to continue

What causes this issue?

The system has terminated the debug session after more than &v1& minutes
of inactivity.
Note that during a debug session, situations can occur where the
interactions triggered by a user do not necessarily lead to system
activities in the backend system. It is therefore possible that the
timeout threshold defined for the backend system is reached although a
user is actively debugging on the UI level.

System Response

The current debug session is interrupted.

How to fix this error?

Restart the debugger by clicking the <ZH>Restart</> button. Breakpoints
and watchpoints are preserved and are still in effect after the restart.

Procedure for System Administrators

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 FDT_WD_TOOLS170 - Timeout occurred during debug session; restart to continue ?

  The SAP error message FDT_WD_TOOLS170 indicates that a timeout occurred during a debug session in the SAP system. This typically happens when the debugging process takes too long, possibly due to performance issues, complex logic in the code being debugged, or other system constraints.
  Causes:
  
  Long-running Processes: The code being debugged may have long execution times due to complex logic or inefficient algorithms.
  System Performance Issues: The SAP system may be experiencing performance issues, such as high load or resource constraints.
  Network Latency: If you are debugging remotely, network issues can cause delays that lead to timeouts.
  Debugging Configuration: The timeout settings for the debugging session may be too short for the operations being performed.
  
  Solutions:
  
  Optimize Code: Review and optimize the code being debugged to reduce execution time. Look for inefficient loops, database calls, or other performance bottlenecks.
  Increase Timeout Settings: If possible, adjust the timeout settings for the debugging session. This may involve changing parameters in the SAP system configuration.
  Check System Performance: Monitor the performance of the SAP system. Use transaction codes like ST03N (Workload Analysis) or ST22 (Dump Analysis) to identify any performance issues.
  Debug in Smaller Chunks: If the code is complex, consider breaking it down into smaller parts and debugging them individually to avoid timeouts.
  Use Breakpoints Wisely: Set breakpoints strategically to minimize the amount of code that runs before hitting a breakpoint.
  Restart Debugging Session: As the error message suggests, restarting the debugging session may help. Ensure that you save any necessary data before doing so.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on debugging performance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation related to debugging and performance tuning for additional insights and best practices.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.