How To Fix SVMCRT_CACHE022 - An exception was raised when executing an area protected by a shared lock

SAP Error Message - Details

• Message type: E = Error

• Message class: SVMCRT_CACHE -

• Message number: 022

• Message text: An exception was raised when executing an area protected by a shared lock

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SVMCRT_CACHE022 - An exception was raised when executing an area protected by a shared lock ?

  The SAP error message SVMCRT_CACHE022 indicates that an exception occurred while trying to execute an operation in an area that is protected by a shared lock. This typically happens in scenarios where multiple processes or transactions are trying to access the same resource concurrently, and one of them is holding a lock that prevents others from proceeding.
  Cause:
  
  Concurrency Issues: The most common cause is that a transaction is trying to access a resource that is currently locked by another transaction. This can happen in high-concurrency environments where multiple users or processes are trying to read or write to the same data simultaneously.
  Long-Running Transactions: If a transaction takes too long to complete, it can hold locks for an extended period, causing other transactions to fail when they attempt to access the same resource.
  Deadlocks: In some cases, a deadlock situation may arise where two or more transactions are waiting for each other to release locks, leading to exceptions.
  Database Configuration: Certain database configurations or settings may also lead to locking issues, especially if the isolation levels are set too high.
  
  Solution:
  
  Identify the Locking Transaction: Use transaction monitoring tools (like SM12 in SAP) to identify which transaction is holding the lock. You can check the lock entries and see which user or process is causing the issue.
  Optimize Transactions: Review the code and logic of the transactions that are causing the locks. Optimize them to ensure they complete quickly and release locks as soon as possible.
  Increase Lock Timeout: If appropriate, consider increasing the lock timeout settings to allow transactions more time to wait for locks to be released.
  Use Appropriate Isolation Levels: Adjust the isolation levels of your database transactions to reduce locking contention. For example, using a lower isolation level can help reduce the likelihood of shared locks.
  Implement Retry Logic: If applicable, implement retry logic in your application to handle transient locking issues gracefully.
  Database Maintenance: Regularly perform database maintenance tasks to ensure optimal performance and reduce locking issues.
  
  Related Information:
  
  Transaction Monitoring: Use transaction codes like SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to analyze dumps) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Performance Tuning: Consider performance tuning of your database and application to minimize locking issues. This may include indexing strategies, query optimization, and reviewing application logic.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with SAP support or your database administrator for further assistance.