How To Fix SDBALM077 - Usage of the heap in %

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 077

• Message text: Usage of the heap in %

Description
The heap usage in % can only be calculated if the upper limit of the
heap size is known through a value > 0 of parameter OMS_HEAP_LIMIT. If
OMS_HEAP_LIMIT has the value 0, the system displays no information in
this node.
Data Collector
<ZH>Collector B</>
(RZ20 -> SAP CCMS Technical Experts Monitors -> All Monitoring Contexts
,,-> <Name of the database connection> -> Collectors and Internals
-> Collectors -> Collector B)

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

Preset runtime interval of Collector B: 15 minutes

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDBALM077 - Usage of the heap in % ?

  The SAP error message SDBALM077 indicates that the usage of the heap memory in the SAP system has exceeded a certain threshold. This can lead to performance issues or even system instability if not addressed. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause
  
  
  High Memory Usage: The primary cause of this error is that the heap memory allocated for the SAP application server is being used excessively. This can happen due to:
  
  Inefficient coding or memory leaks in ABAP programs.
  High volume of data being processed.
  Insufficient memory allocation for the application server.
  Background jobs or processes consuming excessive memory.
  
  
  
  Configuration Issues: The configuration settings for memory management in the SAP system may not be optimized for the workload.
  
  
  System Load: Increased load on the system due to more users or processes can lead to higher memory consumption.
  
  
  Solution
  
  
  Monitor Memory Usage: Use transaction codes like ST02 (Tune Summary) and SM50 (Process Overview) to monitor memory usage and identify which processes are consuming the most memory.
  
  
  Analyze ABAP Programs: Check for any custom ABAP programs that may be causing memory leaks. Use transaction SE30 (Runtime Analysis) or SAT (ABAP Trace) to analyze the performance of these programs.
  
  
  Adjust Memory Parameters: Review and adjust the memory parameters in the instance profile. Key parameters include:
  
  abap/heap_area_dia: This parameter controls the heap memory for dialog work processes.
  abap/heap_area_nondia: This parameter controls the heap memory for non-dialog work processes.
  Increase these values if they are set too low.
  
  
  
  Restart the Application Server: If the memory usage is critically high, a temporary solution may be to restart the affected application server to clear the memory.
  
  
  Optimize Background Jobs: Review and optimize background jobs that may be consuming excessive memory. Consider scheduling them during off-peak hours.
  
  
  Upgrade Hardware: If the system consistently runs out of memory, consider upgrading the hardware or increasing the memory allocation for the SAP application server.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to memory management or known bugs that could be causing high memory usage.
  
  
  Related Information
  
  SAP Memory Management: Understanding how SAP manages memory can help in troubleshooting. SAP uses different memory areas, including heap memory, for various processes.
  Transaction Codes: Familiarize yourself with transaction codes like ST02, SM50, SM66, and SM21 for monitoring and troubleshooting.
  SAP Community and Support: Engage with the SAP Community or SAP Support for additional insights and solutions from other users who may have faced similar issues.
  
  By following these steps, you should be able to address the SDBALM077 error and optimize memory usage in your SAP system.