[lxc-users] Btrfs - Disk quota and Ubuntu 15.10

[Tomasz Chmielewski]

On 2016-06-30 18:55, Sjoerd wrote:
> On 30/06/2016 11:17, Tomasz Chmielewski wrote:
> 
>> Please note that btrfs is not a stable filesystem, at least not in the
>> latest Ubuntu (16.04).
>> 
>> You may have "out of space" errors with them, especially when doing 
>> snapshots.
>> 
>> kernels 4.6.x[1] behave stable for me.
> 
> I am not using RAID5/6 with btrfs. Only the latter is still not
> production ready as I understood it.
> My amount of snapshots won't be a lot (maybe 50 max or so), since I
> delete them regurly.
> But I'll keep an eye on the metadata as well indeed.thanks for the 
> hint..

"out of space" when doing snapshot affects kernels older than 4.6, no 
matter if you use RAID-1, RAID-5/6, or no RAID.

It's especially annoying especially when snapshotting running containers 
with postgres, mysql, mongo etc. - as this causes database errors or 
crashes.


Tomasz Chmielewski
http://wpkg.org/