CLMS_TM015 - Multiplex/tasklist session failed for client &1; could not get lock

SAP Error Message - Details

• Message type: E = Error

• Message class: CLMS_TM - Message class for the tenant mulitplexer

• Message number: 015

• Message text: Multiplex/tasklist session failed for client &1; could not get lock

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.

Unfortunately, there isn't any extra information in this error notice.

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AnswerBot

• What is the cause and solution for SAP error message CLMS_TM015 - Multiplex/tasklist session failed for client &1; could not get lock ?

  The SAP error message CLMS_TM015 indicates that a multiplex or tasklist session has failed for a specific client due to an inability to obtain a lock. This typically occurs in scenarios where multiple processes are trying to access the same resource simultaneously, leading to a contention for locks.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to execute the same task or access the same resource at the same time.
  Long-Running Transactions: A transaction that is taking too long to complete may hold a lock longer than expected, preventing other processes from obtaining the necessary lock.
  Deadlocks: Situations where two or more processes are waiting for each other to release locks, causing a deadlock.
  System Configuration: Incorrect configuration of the SAP system or tasklist settings may lead to locking issues.
  Database Issues: Problems with the underlying database can also lead to locking issues.
  
  Solutions:
  
  Check for Active Sessions: Use transaction codes like SM12 (to check for locks) and SM21 (to check system logs) to identify any active sessions that may be holding locks.
  Terminate Long-Running Processes: If you identify any long-running processes that are holding locks, consider terminating them if they are not critical.
  Adjust Tasklist Execution: If possible, adjust the execution of tasklists to avoid concurrent execution of the same task.
  Increase Lock Timeout: If applicable, consider increasing the lock timeout settings in the SAP system to allow more time for processes to obtain locks.
  Review System Configuration: Ensure that the system configuration is optimal for the workload and that there are no misconfigurations that could lead to locking issues.
  Database Maintenance: Perform regular database maintenance to ensure that the database is functioning optimally and to prevent locking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to view system logs), and ST22 (to check for dumps).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  System Monitoring: Implement monitoring tools to keep an eye on system performance and locking issues, which can help in proactive management of such errors.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.