How To Fix SHTTP012 - Cannot access lock table

SAP Error Message - Details

• Message type: E = Error

• Message class: SHTTP - Messages for Development Class SHTTP

• Message number: 012

• Message text: Cannot access lock table

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SHTTP012 - Cannot access lock table ?

  The SAP error message SHTTP012: Cannot access lock table typically indicates an issue with the SAP Web Application Server (WAS) or the underlying database that is preventing access to the lock table. This can occur due to various reasons, including database connectivity issues, configuration problems, or resource limitations.
  Causes:
  
  Database Connectivity Issues: The application server may not be able to connect to the database, which can happen due to network issues, database server downtime, or incorrect connection parameters.
  Lock Table Corruption: The lock table itself may be corrupted or not properly initialized.
  Resource Limitations: The database or application server may be running out of resources (e.g., memory, connections).
  Configuration Issues: Incorrect configuration settings in the SAP system or database can lead to this error.
  Database Locking Issues: If there are too many locks or if locks are not being released properly, it can lead to this error.
  
  Solutions:
  
  
  Check Database Connectivity:
  
  Verify that the database server is up and running.
  Check network connectivity between the application server and the database server.
  Ensure that the connection parameters (e.g., hostname, port, user credentials) are correct.
  
  
  
  Review SAP System Logs:
  
  Check the SAP system logs (transaction SM21) for any related error messages that could provide more context about the issue.
  
  
  
  Check Lock Table Status:
  
  Use transaction SM12 to check for any locks that may be causing issues. You can delete unnecessary locks if they are stale.
  
  
  
  Restart Services:
  
  Sometimes, simply restarting the SAP application server or the database can resolve temporary issues.
  
  
  
  Monitor Resource Usage:
  
  Use transaction ST02 to monitor memory and buffer usage. If resources are low, consider increasing them or optimizing the system.
  
  
  
  Check Configuration:
  
  Review the configuration settings for both the SAP system and the database to ensure they are set up correctly.
  
  
  
  Database Maintenance:
  
  Perform regular database maintenance tasks, such as reindexing or checking for corruption.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SM21: To view system logs.
  ST02: To monitor memory and buffer usage.
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the SHTTP012 error in your SAP environment.