How can I troubleshoot MySQL replication issues?
To troubleshoot MySQL replication, start by checking the replication status with the command 'SHOW SLAVE STATUS;'. This will give you insights into any errors.
What specific errors should I look for in the output?
Look for the 'Last_Error' field in the output. It will provide details about the last error encountered during replication.
What if the 'Last_Error' field is empty?
If 'Last_Error' is empty, check the 'Seconds_Behind_Master' field. If it's increasing, it indicates the slave is lagging behind the master.
How can I fix replication lag?
To fix replication lag, consider optimizing queries on the master, increasing the slave's resources, or using 'START SLAVE' to resume replication.
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