How To Fix ESH_CA_CACHE038 - Session memory (weak) used: algorithm &1, maximum entries &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_CA_CACHE - ESH Cache

• Message number: 038

• Message text: Session memory (weak) used: algorithm &1, maximum entries &2

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 ESH_CA_CACHE038 - Session memory (weak) used: algorithm &1, maximum entries &2 ?

  The SAP error message ESH_CA_CACHE038 indicates that the session memory for the cache is being utilized, and it provides information about the algorithm being used and the maximum number of entries allowed. This message is typically related to the Enterprise Search (ESH) component in SAP, which uses caching mechanisms to improve performance.
  Cause:
  
  High Cache Usage: The error suggests that the cache is nearing its maximum capacity, which can lead to performance degradation or issues with retrieving data.
  Configuration Limits: The maximum number of entries allowed in the cache may be set too low for the current workload or usage patterns.
  Inefficient Queries: If queries are not optimized, they may lead to excessive cache usage.
  Session Memory Management: The session memory may not be managed effectively, leading to inefficient use of resources.
  
  Solution:
  
  
  Increase Cache Size: 
  
  You can increase the maximum number of entries allowed in the cache. This can typically be done in the configuration settings of the ESH or the relevant caching mechanism.
  Check the parameters related to cache size in the SAP system and adjust them according to your needs.
  
  
  
  Optimize Queries: 
  
  Review and optimize the queries being executed to reduce the load on the cache. This may involve refining search criteria or improving the underlying data model.
  
  
  
  Monitor Cache Usage: 
  
  Regularly monitor cache usage to identify patterns and adjust configurations proactively. Use transaction codes like ST02 (Tune Summary) to analyze memory usage.
  
  
  
  Clear Cache: 
  
  If the cache is filled with stale or unnecessary entries, consider clearing the cache to free up space. This can be done through specific transaction codes or programmatically.
  
  
  
  Review System Resources: 
  
  Ensure that the system has adequate resources (memory, CPU) to handle the workload. If necessary, consider scaling up the infrastructure.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes related to ESH and caching for specific recommendations and best practices.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and ST22 (Dump Analysis) for further investigation.
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to caching and performance in ESH.
  Performance Tuning: Engage in performance tuning activities to ensure that the system is running optimally, which may include adjusting various parameters and settings.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.