How To Fix CM_WEB_MESSAGE_ERROR102 - ICM: Out of Memory

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_WEB_MESSAGE_ERROR - Message Class for CX_WEB_MESSAGE_ERROR

• Message number: 102

• Message text: ICM: Out of Memory

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_WEB_MESSAGE_ERROR102 - ICM: Out of Memory ?

  The SAP error message CM_WEB_MESSAGE_ERROR102 ICM: Out of Memory typically indicates that the Internet Communication Manager (ICM) in your SAP system has run out of memory resources. This can happen due to various reasons, such as high traffic, memory leaks, or insufficient memory allocation for the ICM process.
  Causes:
  
  High Traffic Load: A sudden spike in user requests or transactions can overwhelm the ICM, leading to memory exhaustion.
  Memory Leaks: Inefficient coding or poorly optimized applications can lead to memory not being released properly, causing the ICM to run out of available memory.
  Insufficient Memory Allocation: The ICM may not have been allocated enough memory to handle the expected load.
  Configuration Issues: Incorrect settings in the ICM configuration can lead to inefficient memory usage.
  Long-Running Processes: Processes that take a long time to complete can consume memory without releasing it back to the system.
  
  Solutions:
  
  
  Increase Memory Allocation:
  
  Adjust the memory settings for the ICM in the SAP profile parameters. You can increase the icm/HTTP/max_request_size and icm/HTTP/timeout parameters to allow for more memory usage.
  Check the rdisp/PG_MAXFS parameter to ensure that the dispatcher has enough memory allocated.
  
  
  
  Monitor and Optimize Traffic:
  
  Use transaction codes like SM50 or SM66 to monitor active processes and identify any that are consuming excessive memory.
  Implement load balancing if necessary to distribute traffic more evenly across multiple application servers.
  
  
  
  Check for Memory Leaks:
  
  Analyze the application code for potential memory leaks. This may require debugging and profiling the application to identify areas where memory is not being released.
  Regularly update and patch your SAP system to ensure that you have the latest fixes and optimizations.
  
  
  
  Review ICM Configuration:
  
  Check the ICM configuration settings in transaction ICM or RZ10 to ensure they are optimized for your environment.
  Consider adjusting the icm/HTTP/port settings to manage how many connections the ICM can handle.
  
  
  
  Restart ICM:
  
  As a temporary measure, restarting the ICM can free up memory and resolve the issue until a more permanent solution is implemented.
  
  
  
  System Monitoring:
  
  Implement monitoring tools to keep track of memory usage and performance metrics. This can help in identifying trends and potential issues before they lead to errors.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to ICM and memory management for specific patches or recommendations. You can search for relevant notes in the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for ICM and memory management best practices.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the CM_WEB_MESSAGE_ERROR102 ICM: Out of Memory error effectively.