You can also take a look at https://www.percona.com/forums/questions-discussions/percona-xtrabackup/13587-xtrabackup-freezes-at-unlocking-the-tables-with-db-locked-production-server-stops which looks similar. The logs are important for verification and the scenario when the backup is executed.
You can also take a look at https:/ /www.percona. com/forums/ questions- discussions/ percona- xtrabackup/ 13587-xtrabacku p-freezes- at-unlocking- the-tables- with-db- locked- production- server- stops which looks similar. The logs are important for verification and the scenario when the backup is executed.