MySQL Slave Replication Fails to Start with "Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work."

(Doc ID 2240694.1)

Last updated on MARCH 07, 2017

Applies to:

Big Data Appliance Integrated Software - Version 4.5.0 and later
Linux x86-64

Symptoms

The symptom is that when following the note: How to Restore A MySQL Master Which Has Stopped Generating Binary Log Files and/or Reset MySQL Slave Replication With Cluster Downtime on Oracle Big Data Appliance (Doc ID 2237773.1)  MySQL slave replication fails to start with: "Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work.".

Example output looks like:

Cause

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