How To Fix ESH_CA_CACHE004 - Cache client caused an exception

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_CA_CACHE - ESH Cache

• Message number: 004

• Message text: Cache client caused an exception

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_CA_CACHE004 - Cache client caused an exception ?

  The SAP error message ESH_CA_CACHE004 indicates that there is an issue with the cache client in the Enterprise Search (ESH) component of SAP. This error typically arises when there is a problem with the cache mechanism that stores search results or metadata, which can lead to performance issues or failures in retrieving search results.
  Causes:
  
  Corrupted Cache: The cache may have become corrupted, leading to exceptions when the system tries to access or manipulate cached data.
  Configuration Issues: Incorrect configuration settings for the cache client can lead to exceptions.
  Resource Limitations: Insufficient memory or other system resources can cause the cache client to fail.
  Software Bugs: There may be bugs in the version of the software you are using that affect the cache client.
  Database Issues: Problems with the underlying database that the cache relies on can also lead to exceptions.
  
  Solutions:
  
  
  Clear the Cache: 
  
  You can try clearing the cache to remove any corrupted entries. This can often resolve issues related to corrupted cache data.
  Use transaction code SE38 to run the report ESH_CACHE_CLEANUP to clear the cache.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the cache client in the ESH settings. Ensure that all parameters are set correctly.
  Check the settings in the SAP NetWeaver Administrator or the relevant configuration transactions.
  
  
  
  Monitor System Resources:
  
  Check the system's memory and CPU usage to ensure that there are sufficient resources available for the cache client to operate.
  If resources are low, consider increasing the allocated memory or optimizing other processes.
  
  
  
  Update Software:
  
  Ensure that you are running the latest version of SAP and that all relevant patches have been applied. This can help resolve known bugs that may be causing the issue.
  
  
  
  Check Logs:
  
  Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context about the exception.
  Look for any related errors that may indicate underlying issues.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be specific fixes or recommendations provided by SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs and the steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE38 for executing reports, SLG1 for viewing logs, and SM37 for monitoring background jobs.
  Documentation: Review the official SAP documentation for Enterprise Search and caching mechanisms to understand how they work and best practices for configuration and maintenance.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their experiences and solutions.
  
  By following these steps, you should be able to diagnose and resolve the ESH_CA_CACHE004 error effectively.