If you're encountering issues with MySQL replication, here are some common troubleshooting steps you can take:

Common Issues

  • Replication Not Starting: Ensure that both the master and slave servers have the correct replication settings configured.
  • Replication Lag: Check the server load and disk I/O on both the master and slave servers.
  • Data Corruption: Verify that the binary logs are being correctly applied on the slave server.

Troubleshooting Steps

  1. Check the Error Logs: The first step in troubleshooting replication issues is to check the error logs on both the master and slave servers.
  2. Verify the Configuration: Make sure that the replication settings on both the master and slave servers are correct.
  3. Check the Network: Ensure that the network connection between the master and slave servers is stable.
  4. Monitor Server Performance: Use tools like SHOW PROCESSLIST and SHOW SLAVE STATUS to monitor the replication process and identify any bottlenecks.
  5. Check for Data Corruption: Use checksums or compare the data on the master and slave servers to identify any discrepancies.

Additional Resources

For more detailed information and additional troubleshooting steps, please refer to the following resources:

Images

  • MySQL Replication
  • Troubleshooting Process