Error
Error Code:
4138
MySQL Error 4138: Bulk Reader Communication Error
Description
MySQL Error 4138 indicates that the bulk reader component encountered a communication failure with the source server. This typically occurs during data replication or large-scale data loading operations when the connection between the reader and the source server becomes unstable or is interrupted.
Error Message
Bulk reader got error in communication with source server, check the error log for additional details.
Known Causes
4 known causesNetwork Instability
Intermittent or lost network connectivity between the MySQL server running the bulk reader and the source server.
Source Server Unavailability
The source server might be offline, unreachable, or experiencing high load, preventing successful communication.
Firewall/Security Block
Firewall rules or security groups are blocking the necessary ports or IP addresses required for communication between the servers.
Connection Timeout
The connection between the bulk reader and the source server timed out due to long-running operations or insufficient timeout settings.
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