collective/collective.recipe.backup

Remove quick option, always use True

mauritsvanrees opened this issue · 0 comments

From the readme:

Call repozo with the --quick option. This option was introduced to collective.recipe.backup in version 2.19, with default value true. Due to all the checksums that the repozo default non-quick behavior does, an amount of data is read that is three to four times as much as is in the actual filestorage. With the quick option it could easily be just a few kilobytes. Theoretically the quick option is less safe, but it looks like it can only go wrong when someone edits the .dat file in the repository or removes a .deltafs file.

The quick option only influences the created bin/backup script. It has no effect on the snapshot or restore scripts.

The repozo help says about this option: "Verify via md5 checksum only the last incremental written. This significantly reduces the disk i/o at the (theoretical) cost of inconsistency. This is a probabilistic way of determining whether a full backup is necessary."