How To Fix RSD_TREX155 - Loaded data/main memory available = '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 155

• Message text: Loaded data/main memory available = '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_TREX155 - Loaded data/main memory available = '&1' ?

  The SAP error message RSD_TREX155 indicates that the memory available for loading data into the main memory is insufficient. This error typically occurs in the context of SAP BW (Business Warehouse) when the system is trying to load data into the memory for processing, but it cannot do so due to memory constraints.
  Cause:
  
  Insufficient Memory Allocation: The system may not have enough memory allocated for the process, which can happen if the server is under heavy load or if the memory settings are not configured properly.
  Large Data Volume: The volume of data being processed may exceed the available memory, especially if large datasets are being loaded or processed simultaneously.
  Configuration Issues: Incorrect configuration of the SAP BW system or the underlying database can lead to memory allocation issues.
  Resource Contention: Other processes running on the server may be consuming memory resources, leaving insufficient memory for the data load operation.
  
  Solution:
  
  
  Increase Memory Allocation: 
  
  Review and increase the memory settings for the SAP BW system. This can be done by adjusting the parameters in the instance profile (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  Ensure that the server has enough physical memory available.
  
  
  
  Optimize Data Load:
  
  Break down large data loads into smaller batches to reduce memory consumption during processing.
  Use data compression techniques if applicable to reduce the size of the data being loaded.
  
  
  
  Monitor System Performance:
  
  Use transaction codes like ST02 (Buffer Monitor) and ST03 (Workload Analysis) to monitor memory usage and identify any bottlenecks.
  Check for any long-running processes that may be consuming excessive memory.
  
  
  
  Review Configuration:
  
  Ensure that the SAP BW system and the underlying database are configured optimally for memory usage.
  Consult SAP Notes and documentation for best practices regarding memory management in SAP BW.
  
  
  
  Restart the System: If the issue persists, consider restarting the SAP system to clear any memory leaks or residual memory usage from previous processes.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on memory management in SAP BW.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the memory issue.
  
  By following these steps, you should be able to address the RSD_TREX155 error and improve the memory handling of your SAP BW system.