I have read through the documentation, and have started to implement XtraBackups on our Percona configuration, the syntax I am using is:
innobackupex --user=bkpuser --password=backuppassword --no-timestamp /var/backups/new_backup5
The backup works fine, however in the log I can see:
180820 10:51:59 Finished backing up non-InnoDB tables and files
180820 10:51:59 Executing LOCK BINLOG FOR BACKUP…
180820 10:51:59  Writing /var/backups/new_backup5/xtrabackup_binlog_info
180820 10:51:59  …done
180820 10:51:59 Executing FLUSH NO_WRITE_TO_BINLOG ENGINE LOGS…
xtrabackup: The latest check point (for incremental): ‘4281655043’
xtrabackup: Stopping log copying thread.
.180820 10:51:59 >> log scanned up to (4281655052)
180820 10:51:59 Executing UNLOCK BINLOG
180820 10:51:59 Executing UNLOCK TABLES
180820 10:51:59 All tables unlocked
Reading the documentation, we should have no locking during the backup, this is on a production system which we can’t lock. Am i missing a specific parameter or something?