----- On 25 Jan, 2016, at 19:20, Nikolaus Rath [email protected] wrote:

> On Jan 25 2016, Igor Galić <[email protected]> wrote:
>> Everything works super fine, except when it fails, then it fails horribly.
>> Even just a shutdown of the vm (which, in theory, unmounts all file systems)
>> will make it so that it's impossible to mount the fs on another machine:
>>
>> Backend reports that fs is still mounted elsewhere, aborting.
>>
>> What can i do in such situations?
> 
> Avoid them in the first place, by ensuring that file systems are
> unmounted not just in theory but in practice.

split brain situations aren't theoretical. completely avoiding them
is sometimes impossible. http://queue.acm.org/detail.cfm?id=2655736
Sometimes you lose a machine because it's literally on fire, or just
because its hard disk(s) breaks…

> If the damage is already done, you can get the file system mountable
> again by running fsck.s3ql, but you will most likely loose data.

from what my understanding, this only works on the original machine.
am I mistaken?

Also: I don't mind dataloss too much, cuz in such a timeframe it's
most likely to be log entires or temporary files.
 
> Best,
> -Nikolaus
> 
> (No Cc on replies please, I'm reading the list)
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-- 
Igor Galić

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