Error
Error Code:
1202
MySQL Error 1202: Replica Thread Resource Failure
Description
Error 1202 indicates that MySQL was unable to create a new thread required for replication, typically on a replica server. This usually points to a shortage of system resources like memory, CPU, or operating system thread limits.
Error Message
Could not create replica thread; check system resources
Known Causes
4 known causesLow System Memory
The server running MySQL lacks sufficient available RAM to allocate for the new replication thread and other ongoing processes.
OS Resource Limits Reached
The operating system's configured limits for the number of open files or active threads have been exhausted, preventing the creation of new threads.
Misconfigured MySQL
MySQL configuration parameters, such as `max_connections` or `thread_cache_size`, might be set excessively high, leading to indirect resource exhaustion.
External Resource Contention
Other applications or services running on the same server are consuming a significant amount of CPU, memory, or thread resources, leaving insufficient resources for MySQL.
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