How To Fix RT274 - CCMS self-monitoring: Space problems in shared memory monitoring segment

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 274

• Message text: CCMS self-monitoring: Space problems in shared memory monitoring segment

What causes this issue?

The <LS>Space</> subtree contains attributes for the remaining space in
the monitoring segment of the shared memory. In this segment, among
other things, alerts are stored until they are completed and stored in
the alerts database.
This monitoring tree element displays messages of the methods that are
assigned to these MTEs. If alerts were automatically completed, you
will see a corresponding message here.
See also SAP Note 414029.

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

INCLUDE SELFMON_INSTANZ OBJECT DOKU ID TX

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT274 - CCMS self-monitoring: Space problems in shared memory monitoring segment ?

  The SAP error message RT274 indicates that there are space problems in the shared memory monitoring segment, which is part of the CCMS (Computing Center Management System) self-monitoring functionality. This error typically arises when the shared memory segment allocated for monitoring purposes is insufficient to handle the current workload or configuration.
  Cause:
  
  Insufficient Memory Allocation: The shared memory segment for CCMS monitoring may not have enough space allocated to accommodate the current monitoring requirements.
  High Load: An increase in the number of monitored objects or a high volume of data being processed can lead to memory exhaustion.
  Configuration Issues: Incorrect configuration settings for the monitoring parameters can lead to excessive memory usage.
  Memory Leaks: There may be memory leaks in the application or monitoring processes that consume more memory over time.
  
  Solution:
  
  
  Increase Shared Memory Size:
  
  You can increase the size of the shared memory segment by adjusting the parameters in the instance profile. Look for parameters like rdisp/shm_size and increase its value.
  After making changes, restart the SAP instance for the new settings to take effect.
  
  
  
  Review Monitoring Configuration:
  
  Check the configuration of the CCMS monitoring settings. Reduce the number of monitored objects if possible or adjust the monitoring frequency to lower the memory load.
  
  
  
  Check for Memory Leaks:
  
  Monitor the system for any potential memory leaks. Use transaction codes like ST02 (Tune Summary) and ST04 (Database Performance) to analyze memory usage and identify any abnormal patterns.
  
  
  
  System Performance Tuning:
  
  Optimize the overall performance of the SAP system. This may include tuning database parameters, adjusting workload distribution, and ensuring that the system has adequate resources (CPU, RAM).
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance on memory management.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like ST02 (Buffer Monitor), ST04 (Database Performance), and SM50 (Work Process Overview) to monitor memory usage and performance.
  SAP Documentation: Refer to the official SAP documentation for detailed information on CCMS and memory management.
  SAP Community: Engage with the SAP Community forums for insights and experiences shared by other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the RT274 error and improve the monitoring capabilities of your SAP system.