How To Fix CSM_VMC087 - Number of deleted old cache entries when adding new entries

SAP Error Message - Details

• Message type: E = Error

• Message class: CSM_VMC - Messages for VM Container Monitoring

• Message number: 087

• Message text: Number of deleted old cache entries when adding new entries

What causes this issue?

When saving an object in the cache causes another object to be deleted,
this is called eviction. Objects can be evicted synchronously or
asynchronously. Synchronous eviction means that when the cache is full,
an old object is deleted in order to save the new one. Asynchronous
means that a cleanup job deletes the old objects without a new object
being stored directly.
This number is the number of cache entries directly evicted when a new
entry is written (synchronous).
You can find more information in the online documentation under
<DS:KENO.001560AA0E081DEB9290E35086BF84D6>Caching in the VM Container</>

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CSM_VMC087 - Number of deleted old cache entries when adding new entries ?

  The SAP error message CSM_VMC087 indicates that there is a limit on the number of cache entries that can be stored in the system. When you attempt to add new entries to the cache, the system automatically deletes old entries to make room for the new ones. This message serves as a notification that the cache is being managed by removing older entries.
  Cause:
  
  Cache Size Limit: The cache has a predefined size limit, and when this limit is reached, the system will delete older entries to accommodate new ones.
  High Volume of Data: If your application is generating a high volume of cache entries, it may frequently hit the limit, leading to the deletion of old entries.
  Configuration Settings: The cache settings may not be optimized for your specific use case, leading to frequent deletions.
  
  Solution:
  
  Increase Cache Size: If possible, increase the size of the cache to accommodate more entries. This can often be done through configuration settings in the SAP system.
  Optimize Cache Usage: Review the application logic to see if you can reduce the number of cache entries being created. This might involve optimizing data retrieval processes or reducing the frequency of cache updates.
  Monitor Cache Performance: Use monitoring tools to analyze cache performance and identify patterns in cache usage. This can help you make informed decisions about adjustments.
  Adjust Cache Configuration: Depending on your SAP version, you may have options to adjust cache parameters. Consult the SAP documentation or your system administrator for guidance on how to do this.
  Review Application Logic: Ensure that the application logic is efficient and does not create unnecessary cache entries. This may involve code reviews or refactoring.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to cache management and performance.
  Documentation: Refer to the official SAP documentation for your specific version to understand cache management features and best practices.
  Performance Tuning: Consider engaging with SAP support or a consultant for performance tuning if cache issues persist.
  
  By addressing the cache size and optimizing how entries are managed, you can mitigate the frequency of this error message and improve overall system performance.