How To Fix MDG_GN200 - ************** reserved for Garbage Collector to 250 ***************

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_GN - Messages from the Generator

• Message number: 200

• Message text: ************** reserved for Garbage Collector to 250 ***************

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 MDG_GN200 - ************** reserved for Garbage Collector to 250 *************** ?

  The error message "MDG_GN200 ** reserved for Garbage Collector to 250 ***" in SAP Master Data Governance (MDG) typically indicates an issue related to the garbage collection process in the system. This error can arise when the system is unable to manage memory effectively, leading to performance issues or failures in processing.
  Cause:
  
  Memory Management: The error suggests that the garbage collector is unable to free up memory resources effectively, which can lead to memory leaks or insufficient memory for processing.
  High Load: If the system is under heavy load or if there are many concurrent users, it may strain the memory resources, causing the garbage collector to struggle.
  Configuration Issues: Incorrect configuration of the Java Virtual Machine (JVM) parameters or insufficient memory allocation can lead to this error.
  Long-running Processes: Long-running transactions or processes that consume a lot of memory can also trigger this error.
  
  Solution:
  
  Increase Memory Allocation: Review and increase the memory settings for the JVM. This can be done by adjusting the parameters such as -Xms (initial heap size) and -Xmx (maximum heap size) in the JVM configuration.
  Optimize Garbage Collection Settings: Adjust the garbage collection settings to optimize performance. This may involve changing the garbage collector type or tuning its parameters.
  Monitor System Performance: Use monitoring tools to analyze memory usage and identify any processes that are consuming excessive resources. This can help in pinpointing the root cause of the issue.
  Review Long-running Processes: Identify and optimize any long-running processes that may be consuming a lot of memory. Consider breaking them into smaller, more manageable transactions.
  System Restart: In some cases, a system restart may help clear up memory issues temporarily, but it is not a long-term solution.
  Consult SAP Notes: Check for any relevant SAP Notes or updates that may address this specific error or provide additional guidance.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for MDG and JVM tuning for best practices and guidelines.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Performance Monitoring Tools: Utilize tools like SAP Solution Manager or third-party monitoring solutions to keep track of system performance and memory usage.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with SAP support for further assistance.