Masalah ini berlaku semasa cuba bootstrap nod pertama galera cluster selepas konfigurasi my.cnf
InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes
InnoDB: than specified in the .cnf file 0 536870912 bytes!
Buang fail yang bermasalah
sudo rm /var/lib/mysql/ib_logfile*
Bootstrap semula nod tadi
sudo mysqld --wsrep_cluster_address=gcomm://