Error
Error Code:
3547
MySQL Error 3547: User Management Cache Lock Failure
Description
Error 3547 indicates that the MySQL server was unable to acquire a required lock on its internal user management caches. This typically happens when the server attempts to perform operations related to user authentication, authorization, or modifying user accounts, but another process or a system issue prevents it from securing exclusive access to these critical caches.
Error Message
Can not lock user management caches for processing.
Known Causes
3 known causesConcurrent User Operations
Multiple administrative tasks or user authentication requests are attempting to access or modify user management caches simultaneously, leading to contention for locks.
System Resource Contention
Insufficient system resources, such as memory or file handles, or underlying operating system issues prevent MySQL from properly acquiring and managing locks on its internal caches.
Internal Cache Inconsistency
An infrequent internal inconsistency or corruption within MySQL's user management caches might prevent the server from establishing the necessary locks for processing.
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