How To Fix CMT2179 - Structure cannot be saved; not enough memory available

SAP Error Message - Details

• Message type: E = Error

• Message class: CMT2 - Add-On Version: Message Class in CM Environment

• Message number: 179

• Message text: Structure cannot be saved; not enough memory available

What causes this issue?

You started a structure explosion for a baseline. There is not enough
memory space to save the result of the explosion in the the baseline
structure.

System Response

The process was stopped.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

The explosion process requires more memory space. The memory
requirement for the explosion process cannot be set.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMT2179 - Structure cannot be saved; not enough memory available ?

  The SAP error message CMT2179, which states "Structure cannot be saved; not enough memory available," typically indicates that the system is running low on memory resources when trying to save a structure in the SAP system. This can occur in various contexts, such as when working with data structures in ABAP or when trying to save changes in configuration settings.
  Causes:
  
  Insufficient Memory Allocation: The SAP system may not have enough memory allocated to handle the operation, especially if the structure is large or complex.
  System Resource Limitations: The underlying operating system or database may have limitations on memory usage that are being hit.
  High Load on the System: If the system is under heavy load, it may not have enough available memory to perform additional operations.
  Memory Leaks: There may be memory leaks in the application or other processes consuming memory unnecessarily.
  
  Solutions:
  
  
  Increase Memory Allocation:
  
  Check and increase the memory settings in the SAP profile parameters. Look for parameters like abap/heap_area_dia, abap/heap_area_nondia, and rdisp/PG_MAXFS to ensure they are set appropriately.
  You may need to consult with your Basis team to adjust these parameters.
  
  
  
  Check System Resources:
  
  Monitor the system's memory usage using transaction codes like SM04 (User Overview) or SM50 (Process Overview) to identify any processes consuming excessive memory.
  Use tools like ST02 (Tune Summary) to analyze memory buffers and check for any issues.
  
  
  
  Optimize Code:
  
  If you are developing or modifying ABAP code, ensure that the code is optimized and does not create unnecessary large data structures or consume excessive memory.
  
  
  
  Restart the Application Server:
  
  In some cases, restarting the application server can free up memory and resolve temporary issues.
  
  
  
  Check for Background Jobs:
  
  Review any background jobs that may be running and consuming memory. If necessary, reschedule or terminate jobs that are not critical.
  
  
  
  Database Optimization:
  
  Ensure that the database is optimized and that there are no locks or long-running transactions that could be consuming resources.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to memory management and the specific error message.
  System Monitoring: Regularly monitor system performance and memory usage to prevent such issues from occurring in the future.
  Documentation: Refer to SAP documentation for best practices on memory management and performance tuning.
  
  If the problem persists after trying these solutions, it may be necessary to engage SAP support for further assistance.