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  1. MariaDB Server
  2. MDEV-15713

mariabackup: throw warning/error if --stream is used without --backup

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      Some people seem to think that the --stream option can be used like:

      mariabackup --backup --stream=xbstream --user=root > backup.xbstream
      		 
      cat backup.xbstream | mariabackup --prepare --stream=xbstream

      The proper method to use it seems to be more like this:

      mariabackup --backup --stream=xbstream --user=root > backup.xbstream
      		 
      mbstream -x < backup.xbstream
      		 
      mariabackup --prepare --target-dir=./

      Does it ever make sense to use --stream without --backup? If not, then maybe a warning or error should be thrown if users ever try to do so?

      At the moment, it seems to silently ignore the option:

      $ cat backup.xbstream | mariabackup --prepare --stream=xbstream
      		 
      mariabackup based on MariaDB server 10.2.14-MariaDB Linux (x86_64)
      		 
      mariabackup: cd to /home/ec2-user/backup/xtrabackup_backupfiles/
      		 
      mariabackup: Error: cannot open ./xtrabackup_checkpoints
      		 
      mariabackup: Error: failed to read metadata from './xtrabackup_checkpoints'

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          Task - A task that needs to be done. MDEV-15731 mariabackup: create method for backup tool to extract from mbstream

          • Major - Major loss of function.
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              wlad Vladislav Vaintroub
              GeoffMontee Geoff Montee (Inactive)
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                Resolved:

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