How To Fix RT428 - Currently used roll area [%]

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 428

• Message text: Currently used roll area [%]

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RT428 - Currently used roll area [%] ?

  The SAP error message RT428, which states "Currently used roll area [%]", typically relates to issues with memory management in the SAP system, specifically concerning the roll area. The roll area is a part of the memory used by the SAP system to store data for user sessions, particularly when the main memory is insufficient to hold all the data.
  Cause:
  
  Memory Limitations: The roll area is filling up because the system is running out of available memory. This can happen if there are too many active user sessions or if the memory allocation settings are not optimized.
  High User Load: A sudden increase in the number of users or processes can lead to excessive memory consumption.
  Inefficient Programs: Poorly designed ABAP programs or transactions that consume excessive memory can also lead to this error.
  Configuration Issues: Incorrect configuration of the SAP instance parameters related to memory management can contribute to this issue.
  
  Solution:
  
  Increase Roll Area Size: You can increase the size of the roll area in the SAP profile parameters. The parameter rdisp/roll_area controls the size of the roll area. Adjusting this parameter may help alleviate the issue.
  Optimize Memory Settings: Review and optimize the memory settings in the instance profile. Parameters like abap/heap_area_dia and abap/heap_area_nondia can be adjusted to allocate more memory to dialog and non-dialog processes.
  Monitor User Sessions: Use transaction codes like SM04 or AL08 to monitor active user sessions and identify any that may be consuming excessive resources. Terminate unnecessary sessions if needed.
  Review ABAP Programs: Analyze and optimize any ABAP programs that are consuming excessive memory. Look for opportunities to improve performance and reduce memory usage.
  System Restart: In some cases, a system restart may help clear memory and resolve temporary issues.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SM50 (to monitor work processes) and ST02 (to check memory usage) for further analysis.
  SAP Documentation: Refer to SAP's official documentation for detailed information on memory management and configuration.
  Performance Monitoring: Regularly monitor system performance and memory usage to proactively address potential issues before they lead to errors.
  
  If the problem persists after trying these solutions, it may be necessary to consult with SAP support or a technical consultant for further assistance.