Re: [Gluster-devel] bit rot support for glusterfs

[Venky Shankar]

1. Depend on change-log to recompute checksum. This eliminates
periodic crawl of brick/volume to update the checksum.

Consumption would be very much similar to how Geo-replication makes use of journals, i.e. notification after a specified time interval. If you need somewhat realtime notifications, that can be worked upon. For already existing data on a volume you could fallback to a FS crawl and use changelog thereafter.

FWIW, an history API for changelog consumption (from bricks) would be of much use here (given a [start-time, end-time], fetch all changelogs given that change-logging was _always_ enabled in that time duration, else resort to FS crawl).

    Venky