[Gluster-devel] 1.4 AFR vs Roadmap Page

[Anand Avati]

> 1) Server B goes down
> 2) Server A has file FOO deleted on it
> 3) Server A goes down
> 4) Server B comes up


> Will split brain be detected, or will server B gladly serve up file FOO still?

Server B will be serving FOO, only till A comes back up. Then FOO is
deleted. If the situation is more complex, (file is re-created in the
same name with different content) then AFR only assures fool proof
detection of the recreation and leaves the policy decision of how to
fix it to the user. As an option, (during these complex split brains)
you can chose to give 'preference' to one of your nodes as the
subvolume who's file contents are sync'ed to the other subvolumes.

avati