[meta] Backup/Restore improvements

Everyone can contribute. Help move this issue forward while earning points, leveling up and collecting rewards.

We've been getting reports of backup/restore issues.

  1. A customer reporting that backing up can take >24hrs.
  2. A customer reporting that restore fails. This is due to a special RO dotfile in their environment that is automatically created in all directories due to a point-in-time backup/restore solution on the drive. The issue occurs when we try to copy out of the temporary directory during the restore process, these files get picked up by the copy.
  3. A customer reporting that restores can take a very long time, and chew up a 4 core box for hours. (Did not wait for it to complete)
  4. We've also gotten a bug report here with tar: https://gitlab.com/gitlab-org/gitlab-ce/issues/46891#note_95048966
Edited by 🤖 GitLab Bot 🤖