How To Fix ESH_RUBU_MSG016 - Runtime Buffer is not available (no entries in ESH_RUBU_SC)

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_RUBU_MSG - ESH RuBu - Messages

• Message number: 016

• Message text: Runtime Buffer is not available (no entries in ESH_RUBU_SC)

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_RUBU_MSG016 - Runtime Buffer is not available (no entries in ESH_RUBU_SC) ?

  The SAP error message ESH_RUBU_MSG016 indicates that the runtime buffer is not available because there are no entries in the table ESH_RUBU_SC. This error typically occurs in the context of SAP Enterprise Search or SAP Search and Classification (TREX) when the system is unable to retrieve the necessary data for search operations.
  Cause:
  
  Empty Runtime Buffer: The runtime buffer (ESH_RUBU_SC) is empty, meaning that the system does not have any entries to process the search request.
  Data Indexing Issues: There may be issues with the indexing of data in the search system, leading to the absence of entries in the runtime buffer.
  Configuration Issues: Incorrect configuration of the search system or the related components may prevent the runtime buffer from being populated.
  System Errors: There could be underlying system errors or inconsistencies that are preventing the buffer from being filled.
  
  Solution:
  
  
  Check Indexing Status: Ensure that the data has been indexed correctly. You can do this by checking the indexing status in the SAP system. If the indexing has not been performed, you may need to trigger it manually.
  
  Go to the transaction /IWFND/MAINT_SERVICE and check the service status.
  Use transaction SE11 to check the contents of the ESH_RUBU_SC table.
  
  
  
  Rebuild the Index: If the indexing is incomplete or corrupted, you may need to rebuild the index. This can usually be done through the relevant transaction or program in SAP.
  
  Use transaction SWF_RUN to run the relevant workflow for indexing.
  
  
  
  Check Configuration: Review the configuration settings for the search system to ensure that everything is set up correctly. This includes checking the settings for the search connector and ensuring that the necessary data sources are configured.
  
  
  System Logs: Check the system logs (transaction SLG1) for any related error messages that might provide more context about why the runtime buffer is empty.
  
  
  SAP Notes: Look for any relevant SAP Notes that might address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  Consult Documentation: Review the official SAP documentation for Enterprise Search or TREX to ensure that all prerequisites and configurations are met.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Table ESH_RUBU_SC: This table is part of the runtime buffer for the search system and is used to store search-related data.
  Enterprise Search: SAP Enterprise Search allows users to search across various SAP applications and data sources.
  TREX: The SAP Text Retrieval and Information Extraction (TREX) is a search engine that supports full-text search and is often used in conjunction with SAP Enterprise Search.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the ESH_RUBU_MSG016 error message.