Error
Error Code:
2041
MySQL Error 2041: Server Shared Memory Access Denied
Description
This error indicates that the MySQL server or client, when attempting to use shared memory for communication, failed to open or access the necessary shared memory segment. It commonly occurs on Windows systems when the server cannot create a memory-mapped file required for client connections.
Error Message
Can't open shared memory; server could not get pointer to file mapping (%lu)
Known Causes
4 known causesInsufficient Permissions
The user account running the MySQL server process or the connecting client lacks the necessary operating system permissions to create or access shared memory.
System Resource Contention
The operating system might be experiencing a shortage of shared memory resources, or another process is already utilizing the required memory segment.
Incorrect MySQL Configuration
The MySQL server (my.ini) or client configuration attempts to use shared memory connections when it's not properly enabled or configured on the system.
OS Security Restrictions
Operating system security policies, antivirus software, or other endpoint protection tools are blocking MySQL's access to shared memory.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service