How To Fix CCMS_AGENT004 - Information about garbage collections of the Java instance

SAP Error Message - Details

• Message type: E = Error

• Message class: CCMS_AGENT -

• Message number: 004

• Message text: Information about garbage collections of the Java instance

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 CCMS_AGENT004 - Information about garbage collections of the Java instance ?

  The SAP error message CCMS_AGENT004 typically relates to the monitoring of garbage collection (GC) activities in a Java instance of an SAP system. This message is part of the CCMS (Computing Center Management System) monitoring framework, which is used to monitor various aspects of SAP systems, including performance metrics and resource usage.
  Cause
  The CCMS_AGENT004 message indicates that there is an issue or noteworthy information regarding the garbage collection process in the Java instance. Common causes for this message include:
  
  High Frequency of Garbage Collection: If garbage collection is occurring too frequently, it may indicate that the Java heap size is too small for the workload, leading to performance degradation.
  Long Garbage Collection Times: If the duration of garbage collection is excessively long, it can lead to application pauses and impact performance.
  Memory Leaks: If there are memory leaks in the application, it can cause the heap to fill up quickly, leading to more frequent garbage collections.
  Configuration Issues: Incorrect JVM parameters or settings can lead to inefficient garbage collection behavior.
  
  Solution
  To address the issues indicated by the CCMS_AGENT004 message, consider the following solutions:
  
  Analyze Garbage Collection Logs: Enable and analyze GC logs to understand the frequency and duration of garbage collections. This can help identify patterns and potential issues.
  Increase Heap Size: If the heap size is too small, consider increasing it. This can be done by adjusting the JVM parameters (e.g., -Xms for initial heap size and -Xmx for maximum heap size).
  Optimize Application Code: Review the application code for potential memory leaks or inefficient memory usage patterns. Tools like profilers can help identify problematic areas.
  Tune Garbage Collection Settings: Depending on the version of the JVM being used, you may have options to tune the garbage collection algorithm (e.g., using G1, CMS, or other collectors). Adjusting these settings can improve performance.
  Monitor Performance: Continuously monitor the performance of the Java instance after making changes to ensure that the adjustments have a positive impact.
  
  Related Information
  
  SAP Notes: Check SAP Notes related to garbage collection and performance tuning for specific recommendations and best practices.
  JVM Documentation: Refer to the documentation for the specific version of the JVM being used to understand the available garbage collection options and tuning parameters.
  SAP Community: Engage with the SAP Community for insights and experiences from other users who may have encountered similar issues.
  
  By addressing the underlying causes of the CCMS_AGENT004 message, you can improve the performance and stability of your SAP Java instance.