question: public void deleteBackup ( String backupTag ) { checkOnStandby ( ) ; validateBackupName ( backupTag ) ; InterProcessLock lock = null ; try { lock = getLock ( BackupConstants . BACKUP_LOCK , BackupConstants . LOCK_TIMEOUT , TimeUnit . MILLISECONDS ) ; deleteBackupWithoutLock ( backupTag , false ) ; } finally { releaseLock ( lock ) ; } }
target:  Delete backup file on all nodes