How To Fix ESH_BOS_INDEX_CTRL020 - Iterator for index ID &1 is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_BOS_INDEX_CTRL - Trex Inderxing on the ES Hub

• Message number: 020

• Message text: Iterator for index ID &1 is missing

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_BOS_INDEX_CTRL020 - Iterator for index ID &1 is missing ?

  The SAP error message ESH_BOS_INDEX_CTRL020 indicates that there is an issue with the index iterator for a specific index ID in the Enterprise Search (ESH) system. This error typically arises when the system is unable to find or access the iterator for the specified index, which is necessary for processing search queries.
  Cause:
  
  Index Not Initialized: The index may not have been properly initialized or created.
  Index Corruption: The index could be corrupted or not in a consistent state.
  Configuration Issues: There may be configuration issues in the ESH settings or the index settings.
  Missing Data: The data required for the index might be missing or not properly loaded.
  System Issues: There could be underlying system issues, such as database connectivity problems or resource limitations.
  
  Solution:
  
  
  Reinitialize the Index:
  
  Go to the ESH administration area and check the status of the index.
  If the index is not initialized, you may need to reinitialize it. This can often be done through the ESH administration tools.
  
  
  
  Check Index Configuration:
  
  Review the configuration settings for the index in the ESH settings.
  Ensure that all necessary parameters are correctly set.
  
  
  
  Rebuild the Index:
  
  If the index is corrupted, you may need to rebuild it. This can usually be done through the ESH administration interface.
  Make sure to back up any necessary data before performing a rebuild.
  
  
  
  Check Logs:
  
  Review the application logs for any additional error messages or warnings that could provide more context about the issue.
  Look for logs related to the ESH and the specific index ID mentioned in the error message.
  
  
  
  Database Connectivity:
  
  Ensure that the database is accessible and that there are no connectivity issues.
  Check for any database locks or performance issues that might be affecting the index.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message or provide additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Enterprise Search (ESH): A component of SAP that allows users to search across various data sources within the SAP landscape.
  Indexing in ESH: Indexes are crucial for the performance of search queries, and maintaining them is essential for optimal system performance.
  Monitoring Tools: Utilize SAP monitoring tools to keep track of the health and performance of your ESH indexes.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the ESH_BOS_INDEX_CTRL020 error message.