How To Fix CSM_VMC088 - Size 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: 088

• Message text: Size 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 size of the synchronously evicted cache entries in
megabytes.
You can find more information in the online documentation under
<DS:KENO.001560AA0E081DEB9290E35086BF84D6>Caching in the VM Container</>

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_VMC088 - Size of deleted old cache entries when adding new entries ?

  The SAP error message CSM_VMC088 indicates that the size of deleted old cache entries is exceeding a certain limit when trying to add new entries to the cache. This typically occurs in the context of the SAP Cache Management system, which is responsible for managing the cache used by various applications to improve performance.
  Cause:
  
  Cache Size Limit: The cache has a defined size limit, and when new entries are added, the system attempts to delete old entries to make space. If the size of the deleted entries exceeds the allowed limit, this error is triggered.
  High Volume of Data: If your application is generating a high volume of data that needs to be cached, it can lead to rapid filling of the cache, causing frequent deletions.
  Configuration Issues: The cache configuration settings may not be optimized for the current workload, leading to inefficient cache management.
  
  Solution:
  
  Increase Cache Size: Review and increase the cache size limit if possible. This can be done in the SAP system settings where cache parameters are defined.
  Optimize Cache Configuration: Adjust the cache configuration settings to better suit your application's needs. This may involve tuning parameters such as the maximum number of entries, the maximum size of entries, and the eviction policy.
  Monitor Cache Usage: Use monitoring tools to analyze cache usage patterns. This can help identify if certain data is being cached unnecessarily or if there are specific operations that are causing excessive cache usage.
  Implement Cache Eviction Policies: Consider implementing more efficient cache eviction policies that prioritize which entries to keep based on usage patterns.
  Regular Maintenance: Schedule regular maintenance tasks to clear out stale or unnecessary cache entries, which can help manage the cache size more effectively.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to cache management and performance tuning for specific recommendations and best practices.
  Transaction Codes: Use transaction codes like SM12 (to monitor locks), SM21 (to check system logs), and ST02 (to analyze buffer and memory usage) for troubleshooting.
  Performance Monitoring: Utilize tools like SAP Solution Manager or other performance monitoring tools to keep track of cache performance and system health.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with SAP support or your system administrator for further assistance.