Error
Error Code:
1236
MySQL Error 1236: Binary Log Read Failure
Description
This error indicates a critical problem when a MySQL server (often a replica) attempts to read data from the binary log of its source server. It signifies an unrecoverable issue preventing further replication or data synchronization due to an inability to process the log stream.
Error Message
Got fatal error %d from source when reading data from binary log: '%s'
Known Causes
4 known causesCorrupted Binary Log Files
The binary log files on the source server may be physically damaged or contain invalid data, preventing the replica from reading them correctly.
Network Connectivity Issues
Intermittent or lost network connection between the source and replica servers can interrupt the binary log data transfer, leading to read failures.
Incorrect Replication Configuration
Misconfigured `CHANGE MASTER TO` parameters on the replica, such as an incorrect master log file name or position, can cause the replica to request non-existent or invalid log data.
Source Server Unavailability or Access Issues
The source MySQL server might be down, inaccessible, or lack the necessary user permissions for the replica to connect and read its binary logs.
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