How To Fix AIMMERGER_SHD077 - XPRA-merge file: Maximum number of open files exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: AIMMERGER_SHD - Message Class of AIM-Merger

• Message number: 077

• Message text: XPRA-merge file: Maximum number of open files exceeded

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AIMMERGER_SHD077 - XPRA-merge file: Maximum number of open files exceeded ?

  The SAP error message AIMMERGER_SHD077 with the description "XPRA-merge file: Maximum number of open files exceeded" typically occurs during the execution of an XPRA (eXtended Program Run) in the context of a system upgrade or data migration. This error indicates that the system has reached the limit of open file descriptors, which can happen due to various reasons, such as a high number of files being processed simultaneously.
  Cause:
  
  Operating System Limit: The operating system has a limit on the number of files that can be opened by a single process. This limit can be reached if the XPRA is trying to open too many files at once.
  Configuration Settings: The SAP system or the underlying operating system may not be configured to handle the required number of open files.
  Resource Leak: There may be a resource leak in the application or the system, leading to an excessive number of open file handles.
  
  Solution:
  
  
  Increase the Limit of Open Files:
  
  On Unix/Linux systems, you can increase the limit of open files by modifying the ulimit settings. You can check the current limit with the command:
  ulimit -n
  
  To increase the limit, you can use:
  ulimit -n <new_limit>
  
  You may also need to edit the /etc/security/limits.conf file to set a higher limit for the user running the SAP instance.
  
  
  
  Check SAP Parameters:
  
  In the SAP system, check the parameters related to file handling. You can use transaction RZ10 to view and modify instance profiles.
  Look for parameters like rdisp/max_open_files and adjust them if necessary.
  
  
  
  Review XPRA Execution:
  
  If the XPRA is processing a large number of files, consider breaking it down into smaller batches if possible.
  Monitor the execution to identify if there are specific files or processes that are causing the issue.
  
  
  
  System Restart:
  
  In some cases, a system restart may help to clear any lingering open file handles.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  Operating System Documentation: Refer to the documentation for your specific operating system for details on managing file descriptor limits.
  SAP Basis Documentation: Review SAP Basis documentation for best practices on system configuration and performance tuning.
  Monitoring Tools: Use monitoring tools to track file usage and identify potential bottlenecks in file handling.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.