How To Fix SDBALM178 - High number of "Out of Memory" exceptions were raised (&1 > &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: SDBALM - SAP DB and liveCache Alert Monitoring

• Message number: 178

• Message text: High number of "Out of Memory" exceptions were raised (&1 > &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDBALM178 - High number of "Out of Memory" exceptions were raised (&1 > &2) ?

  The SAP error message SDBALM178 indicates that the system has encountered a high number of "Out of Memory" exceptions, where the number of exceptions raised exceeds a specified threshold. This can lead to performance issues and may affect the stability of the SAP system.
  Cause:
  The "Out of Memory" exceptions can be caused by several factors, including:
  
  
  Insufficient Memory Allocation: The SAP application server may not have enough memory allocated to handle the workload, especially if there are many concurrent users or large data processing tasks.
  
  
  Memory Leaks: There may be memory leaks in the application code or in custom developments that lead to excessive memory consumption over time.
  
  
  High Workload: A sudden increase in workload, such as batch jobs or reports running simultaneously, can lead to memory exhaustion.
  
  
  Configuration Issues: Incorrect configuration settings for the SAP system, such as buffer sizes or memory parameters, can contribute to memory issues.
  
  
  Inefficient Queries: Poorly optimized database queries can consume excessive memory, leading to out-of-memory errors.
  
  
  Solution:
  To resolve the SDBALM178 error, consider the following steps:
  
  
  Increase Memory Allocation:
  
  Review and increase the memory settings for the SAP application server. This can be done by adjusting parameters such as abap/heap_area_dia, abap/heap_area_nondia, and rdisp/PG_MAXFS in the instance profile.
  
  
  
  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.
  
  
  
  Check for Memory Leaks:
  
  Analyze custom code and third-party add-ons for potential memory leaks. Use tools like the ABAP Memory Inspector or transaction ST22 (Dump Analysis) to identify problematic areas.
  
  
  
  Optimize Queries:
  
  Review and optimize any database queries that may be consuming excessive memory. Use transaction SE11 to analyze database tables and indexes.
  
  
  
  Adjust Buffer Sizes:
  
  Review and adjust buffer sizes in the SAP system configuration. Parameters like dbs/ora/db_block_size and rdisp/BUFFER_SIZE may need to be tuned.
  
  
  
  Review Background Jobs:
  
  Check for any background jobs that may be consuming excessive resources and consider scheduling them during off-peak hours.
  
  
  
  Upgrade Hardware:
  
  If the system consistently runs out of memory, consider upgrading the hardware resources (RAM) of the application server.
  
  
  
  SAP Notes:
  
  Check for relevant SAP Notes that may address specific issues related to memory management or known bugs that could lead to out-of-memory exceptions.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on memory management and performance tuning.
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have faced similar issues.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools to gain insights into system performance and memory usage patterns.
  
  By following these steps, you should be able to address the SDBALM178 error and improve the overall stability and performance of your SAP system.