-- the timeout for waiting BACKUP STAGE. It should be longer than the variable BACKUP_STAGE_TIMEOUT_IN_SECONDS declared in the file nc_snapshot.sh
SET lock_wait_timeout = 65 ;

BACKUP STAGE START ;
BACKUP STAGE FLUSH ;
BACKUP STAGE BLOCK_COMMIT ;
-- create a flag for backup stage set
SYSTEM touch "/snapshot_sync/nc_mariadb_bakcup_stage_started.txt"
-- wait for the snapshot done signal from the script nc_snapshot.sh
SYSTEM "/snapshot_sync/zfs_nc_snapshot_wait.sh"
BACKUP STAGE END ;
-- rm the flag for backup stage set
SYSTEM rm "/snapshot_sync/nc_mariadb_bakcup_stage_started.txt"