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MySQL Slave Status | master and slave have equal MySQL server UUIDs


 Master Slave Replication:

After configuring master slave replication when you check slave status on slave you got

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.

Cause: Because you might have copied data directory from master to slave, and same auto.cnf file exists on master and slave. 

 Solution: Stop mysql daemon on slave, remove auto.cnf file from data directory on slave , start slave, and check slave status. You will be fine. 
Stop MySQL daemon on slave:
#systemctl stop mysqld
Delete auto.cnf file from the data directory:
# rm -rf auto.cnf
Start MySQL daemon:
#systemctl start mysqld 
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