How To Fix VMC_ADMIN008 - Forced shared garbage collection completed successfully

SAP Error Message - Details

• Message type: E = Error

• Message class: VMC_ADMIN - messages for VMC Administration and Monitoring

• Message number: 008

• Message text: Forced shared garbage collection completed successfully

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message VMC_ADMIN008 - Forced shared garbage collection completed successfully ?

  The SAP error message VMC_ADMIN008 indicates that a forced shared garbage collection (GC) has been completed successfully in the SAP system. This message is typically related to the Java Virtual Machine (JVM) that runs the SAP applications, particularly in environments that utilize the SAP NetWeaver Application Server Java (AS Java).
  Cause:
  The message itself is not an error but rather an informational message indicating that a manual or forced garbage collection process was executed. Garbage collection is a process by which the JVM reclaims memory that is no longer in use, helping to manage memory consumption and improve performance. A forced garbage collection may be triggered for various reasons, including:
  
  Memory Pressure: The system may be experiencing high memory usage, prompting administrators to manually trigger garbage collection to free up memory.
  Performance Tuning: Administrators may want to optimize performance by ensuring that unused objects are cleared from memory.
  Scheduled Maintenance: Garbage collection may be part of routine maintenance tasks to ensure the system runs smoothly.
  
  Solution:
  Since the message indicates that the garbage collection was completed successfully, no immediate action is required. However, if you are experiencing performance issues or memory-related problems, consider the following steps:
  
  Monitor Memory Usage: Use monitoring tools to keep an eye on memory consumption in the JVM. This can help identify if frequent garbage collections are needed.
  Adjust JVM Parameters: Depending on your findings, you may need to adjust the JVM parameters related to memory allocation (e.g., heap size) to optimize performance.
  Analyze Garbage Collection Logs: If you have logging enabled for garbage collection, analyze the logs to understand the frequency and duration of garbage collections. This can provide insights into memory management.
  Review Application Code: If memory issues persist, review the application code for potential memory leaks or inefficient memory usage patterns.
  Consult SAP Documentation: Refer to SAP's official documentation for best practices on memory management and garbage collection in the context of SAP NetWeaver AS Java.
  
  Related Information:
  
  Garbage Collection Types: Understand the different types of garbage collection (e.g., minor GC, major GC) and how they impact performance.
  JVM Tuning: Familiarize yourself with JVM tuning parameters that can help optimize garbage collection behavior.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to garbage collection and memory management in your specific SAP version.
  
  If you continue to experience issues or if the message appears frequently, it may be beneficial to engage with SAP support for further assistance.