Error
Error Code:
2043
MySQL Error 2043: Shared Memory Access Failure
Description
MySQL Error 2043 indicates that the client application failed to establish a shared memory connection to the MySQL server. This typically occurs on Windows systems when the client cannot get a pointer to the necessary file mapping, preventing it from opening shared memory segments. The `%lu` often represents an underlying system error code.
Error Message
Can't open shared memory; client could not get pointer to file mapping (%lu)
Known Causes
4 known causesInsufficient Permissions
The user account or process running the MySQL client lacks the necessary operating system permissions to create or access shared memory regions or file mappings.
Shared Memory Disabled
The MySQL server is not configured to allow shared memory connections, or the shared memory protocol is explicitly disabled in its configuration settings.
Resource Exhaustion/Conflict
System shared memory resources may be exhausted, or another application is conflicting with MySQL's attempt to utilize a specific shared memory segment.
Mismatched Connection Protocol
The client is attempting to connect via shared memory, but the MySQL server is only listening on other protocols like TCP/IP or named pipes, leading to a protocol mismatch.
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