How To Fix 00852 - Extended memory: high-water mark since last query

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 852

• Message text: Extended memory: high-water mark since last query

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00852 - Extended memory: high-water mark since last query ?

  The SAP error message "00852 Extended memory: high-water mark since last query" typically indicates that the extended memory usage in the SAP system has reached a certain threshold, which can affect performance and lead to issues with processing requests. This error is often related to memory management within the SAP system, particularly in environments with high workloads or inefficient memory usage.
  Cause:
  
  
  High Memory Usage: The error occurs when the extended memory usage exceeds a predefined limit (high-water mark) since the last query was executed. This can happen due to:
  
  Large data processing tasks.
  Inefficient ABAP code that consumes excessive memory.
  High user load or concurrent sessions.
  Memory leaks in custom programs or transactions.
  
  
  
  Configuration Issues: The SAP system may not be optimally configured for memory management, leading to suboptimal performance and memory allocation.
  
  
  Insufficient Memory Allocation: The system may not have enough memory allocated to handle the current workload, especially in systems with limited resources.
  
  
  Solution:
  
  
  Monitor Memory Usage: Use transaction codes like ST02 (Tune Summary) and ST03 (Workload Analysis) to monitor memory usage and identify any bottlenecks or high memory-consuming processes.
  
  
  Optimize ABAP Code: Review and optimize any custom ABAP programs or reports that may be consuming excessive memory. Look for:
  
  Inefficient data retrieval methods (e.g., SELECT statements).
  Unnecessary data processing or large internal tables.
  Use of proper data types and structures.
  
  
  
  Adjust Memory Parameters: Consider adjusting the memory parameters in the SAP profile (e.g., abap/heap_area_dia, abap/heap_area_nondia, abap/heap_area_total) to allocate more memory to the application server.
  
  
  Increase System Resources: If the system is consistently hitting memory limits, consider increasing the physical memory of the server or scaling up the infrastructure.
  
  
  Review Background Jobs: Check for any long-running background jobs that may be consuming memory and optimize or schedule them during off-peak hours.
  
  
  Restart the Application Server: In some cases, restarting the application server can help clear memory and resolve temporary issues.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific recommendations and best practices.
  SAP Documentation: Review the official SAP documentation for guidelines on memory management and performance optimization.
  System Monitoring Tools: Utilize SAP Solution Manager or other monitoring tools to keep track of system performance and memory usage over time.
  
  By addressing the underlying causes of the high-water mark issue, you can improve the performance and stability of your SAP system.