How To Fix D3067 - Lock held by a thread residing on another member

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 067

• Message text: Lock held by a thread residing on another member

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D3067 - Lock held by a thread residing on another member ?

  The SAP error message D3067, which states "Lock held by a thread residing on another member," typically occurs in a distributed environment where multiple application servers are involved. This error indicates that a lock is being held by a thread on a different application server (or instance) than the one trying to access the resource. This situation can lead to contention and delays in processing.
  Cause:
  
  Distributed Locking: In a distributed SAP system, locks are managed across different application servers. If one server holds a lock on a resource, other servers trying to access that resource will encounter this error.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, causing other transactions to fail.
  Deadlocks: In some cases, a deadlock situation may arise where two or more threads are waiting for each other to release locks.
  Configuration Issues: Misconfiguration in the SAP system or network issues can also lead to improper lock handling.
  
  Solution:
  
  Identify the Lock Holder: Use transaction codes like SM12 (to view locks) and SM21 (to check system logs) to identify which application server is holding the lock.
  Release the Lock: If appropriate, you can manually release the lock using SM12. However, be cautious when doing this, as it may lead to data inconsistencies if the transaction is still in progress.
  Optimize Transactions: Review and optimize long-running transactions to ensure they complete quickly and release locks in a timely manner.
  Check for Deadlocks: Use transaction SM21 to check for deadlocks and analyze the logs to understand the cause.
  System Configuration: Ensure that your SAP system is properly configured for distributed locking. This includes checking the settings for the enqueue server and ensuring that all application servers are correctly communicating.
  Monitor Performance: Regularly monitor system performance and lock situations to proactively address potential issues before they escalate.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to locking issues for specific patches or updates that may address known problems.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have faced similar issues.
  Documentation: Review SAP documentation on lock management and distributed systems for best practices and troubleshooting steps.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.