How To Fix ESH_CA_CACHE031 - Session memory used: algorithm &1, maximum entries &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_CA_CACHE - ESH Cache

• Message number: 031

• Message text: Session memory 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_CACHE031 - Session memory used: algorithm &1, maximum entries &2 ?

  The SAP error message ESH_CA_CACHE031 indicates that the session memory used for a specific algorithm has reached its maximum limit of entries. This is related to the Enterprise Search (ESH) component in SAP, which utilizes caching mechanisms to improve performance.
  Cause:
  The error occurs when the cache for a specific algorithm exceeds the predefined limit of entries. This can happen due to:
  
  High volume of search queries or data being processed.
  Inefficient cache management or configuration.
  Insufficient memory allocation for the session cache.
  
  Solution:
  To resolve this issue, you can consider the following approaches:
  
  
  Increase Cache Size:
  
  You can increase the maximum number of entries allowed in the cache for the specific algorithm. This can typically be done in the configuration settings of the ESH or the relevant caching parameters in the SAP system.
  
  
  
  Optimize Search Queries:
  
  Review and optimize the search queries being executed. Reducing the complexity or volume of data being processed can help in managing cache usage.
  
  
  
  Clear Cache:
  
  Manually clear the cache to free up memory. This can be done through transaction codes or specific ESH administration tools.
  
  
  
  Monitor Cache Usage:
  
  Implement monitoring to keep track of cache usage and identify patterns that lead to high memory consumption. This can help in proactive management of cache settings.
  
  
  
  Review Algorithm Configuration:
  
  Check the configuration of the specific algorithm mentioned in the error message. Ensure that it is set up correctly and that any parameters related to caching are optimized.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes or documentation that may provide additional insights or patches related to this error message.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SICF (HTTP Service Maintenance) to check configurations.
  SAP Community: Engage with the SAP Community forums for discussions and solutions shared by other users who may have faced similar issues.
  Performance Tuning: Consider general performance tuning practices for your SAP system, which can help in managing memory and cache more effectively.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.