How To Fix MMRP01029 - Lock request in liveCache has timed out

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 029

• Message text: Lock request in liveCache has timed out

What causes this issue?

The RPM is blocked by another process at the moment.

System Response

The system does not allow the requested operation.

How to fix this error?

Try again later.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01029 - Lock request in liveCache has timed out ?

  The SAP error message MMRP01029 indicates that a lock request in LiveCache has timed out. This typically occurs in scenarios where the system is trying to access or modify data in LiveCache, but the operation cannot be completed within the expected time frame due to contention or other issues.
  Causes:
  
  High Load on LiveCache: If there are too many concurrent requests or transactions trying to access the LiveCache, it can lead to timeouts.
  Long-Running Transactions: If a transaction takes too long to complete, it can hold locks for an extended period, causing other requests to time out.
  Deadlocks: Situations where two or more transactions are waiting for each other to release locks can lead to timeouts.
  Network Issues: Connectivity problems between the application server and the LiveCache can also result in timeouts.
  Configuration Issues: Incorrect configuration settings for LiveCache or the underlying database can lead to performance issues.
  
  Solutions:
  
  Analyze Lock Situations: Use transaction codes like SM12 to check for existing locks and identify long-running transactions that may be causing the timeout.
  Optimize Transactions: Review and optimize the code or processes that are accessing LiveCache to ensure they complete in a timely manner.
  Increase Timeout Settings: If appropriate, consider increasing the timeout settings for LiveCache operations. This can be done in the configuration settings.
  Monitor System Performance: Use performance monitoring tools to identify bottlenecks in the system that may be affecting LiveCache performance.
  Database Tuning: Ensure that the underlying database is properly tuned for performance, as this can impact LiveCache operations.
  Check for Deadlocks: Investigate and resolve any deadlock situations that may be occurring in the system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view locks), SM21 (to check system logs), and ST22 (to analyze dumps).
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to LiveCache and the MMRP01029 error.
  Documentation: Review SAP documentation related to LiveCache and its configuration for best practices and performance tuning tips.
  Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with detailed logs and system information.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the MMRP01029 error in your SAP environment.