Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On Fri, Nov 20, 2015 at 08:21:31AM -0500, Austin S Hemmelgarn wrote: > On 2015-11-20 06:39, Dmitry Katsubo wrote: > >If I may add: > > > >Information for "System" > > > > System, DUP: total=32.00MiB, used=16.00KiB > > > >is also quite technical, as for end user system = metadata (one can call >

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 2015-11-20 08:27, Hugo Mills wrote: On Fri, Nov 20, 2015 at 08:21:31AM -0500, Austin S Hemmelgarn wrote: On 2015-11-20 06:39, Dmitry Katsubo wrote: If I may add: Information for "System" System, DUP: total=32.00MiB, used=16.00KiB is also quite technical, as for end user system =

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

Many thanks to Duncan for such a verbose clarification. I am thinking about another parallel similar to SimSity, and that is memory management in virtual machines like Java. If heap is full, it does not really mean that there is no free memory. In this case JVM forces garbage collector and if

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 2015-11-20 06:39, Dmitry Katsubo wrote: If I may add: Information for "System" System, DUP: total=32.00MiB, used=16.00KiB is also quite technical, as for end user system = metadata (one can call it "filesystem metadata" perhaps). For simplicity the numbers can be added to "Metadata"

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

Am 20.11.2015 um 04:14 schrieb Duncan: > Meta-comment: > > Apparently that attribution should actually be to Hugo Mills. I've no > idea what went wrong, but at least here as received from gmane.org, the > from header really does say linux-btrfs.tebulin, so something obviously > bugged out

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

If I may add: Information for "System" System, DUP: total=32.00MiB, used=16.00KiB is also quite technical, as for end user system = metadata (one can call it "filesystem metadata" perhaps). For simplicity the numbers can be added to "Metadata" thus eliminating that line as well. For those

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 2015-11-19 21:11, Duncan wrote: Austin S Hemmelgarn posted on Thu, 19 Nov 2015 07:28:34 -0500 as excerpted: (having all updates installed on Ubuntu doesn't really count in this case, they're pretty bad sometimes about not properly tracking upstream development[)] No kidding. I'm involved

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

linux-btrfs.tebulin posted on Fri, 20 Nov 2015 10:38:33 +0100 as excerpted: > Am 20.11.2015 um 04:14 schrieb Duncan: >> Meta-comment: >> >> Apparently that attribution should actually be to Hugo Mills. I've no >> idea what went wrong, but at least here as received from gmane.org, the >> from

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 2015-11-20 14:52, Austin S Hemmelgarn wrote: > On 2015-11-20 08:27, Hugo Mills wrote: >> On Fri, Nov 20, 2015 at 08:21:31AM -0500, Austin S Hemmelgarn wrote: >>> On 2015-11-20 06:39, Dmitry Katsubo wrote: For those power users who really want to see the tiny details like "System" and

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 19 November 2015 at 06:58, Roman Mamedov wrote: > > On Wed, 18 Nov 2015 19:53:03 +0100 > linux-btrfs.tebu...@xoxy.net wrote: > > > $ uname -a > > Linux neptun 3.19.0-31-generic #36~14.04.1-Ubuntu SMP Thu Oct 8 > > 10:21:08 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux [...] > >

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

This explanation helped a lot. Got it now! Thank you! >You start with a load of unused space -- that's the "total" for > each device in btrfs fi show. That space is allocated to specific > usages as the FS needs it. The allocated space is the "used" in btrfs > fi show for each device. > >

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

>It's just freed up lots of space. You'll probably find that your > "total" value for data in btrfs fi df is close to (but not exactly) 66 > GiB now, if you've just run a full unfiltered balance. (The difference > being made up of metadata). I think i need to dive more into the details of

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On Thu, Nov 19, 2015 at 07:45:13PM +0100, Ben Tebulin wrote: > > >It's just freed up lots of space. You'll probably find that your > > "total" value for data in btrfs fi df is close to (but not exactly) 66 > > GiB now, if you've just run a full unfiltered balance. (The difference > > being

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 2015-11-19 13:28, Hugo Mills wrote: On Thu, Nov 19, 2015 at 06:35:24PM +0100, linux-btrfs.tebu...@xoxy.net wrote: Will newer kernels do the balance on their own? I think it's on the "projects" list on the wiki, so it may get done eventually. As I said above, I'm not aware of anyone

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On 2015-11-18 13:53, linux-btrfs.tebu...@xoxy.net wrote: P.S.: Just as user feedback: For /srv I'm using on the very same system ZFS since the very first day. With snapshots & all the fancy stuff like ZRAID-1, lz4, ... My number of Issues there: 0 Since other people have adequately answered the

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

Austin S Hemmelgarn posted on Thu, 19 Nov 2015 07:28:34 -0500 as excerpted: > (having all updates installed on Ubuntu doesn't really count in this > case, they're pretty bad sometimes about not properly tracking upstream > development[)] No kidding. I'm involved with an upstream that had a

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

linux-btrfs.tebulin posted on Thu, 19 Nov 2015 18:56:45 + as excerpted: Meta-comment: Apparently that attribution should actually be to Hugo Mills. I've no idea what went wrong, but at least here as received from gmane.org, the from header really does say linux-btrfs.tebulin, so something

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On Wed, Nov 18, 2015 at 07:53:03PM +0100, linux-btrfs.tebu...@xoxy.net wrote: > Hello there! > > I'm stumbling over this regularly. I explicitly upgraded the kernel to > avoid this, but it still occurs me every few months: > > $ touch foo > touch: »foo“ kann nicht berührt werden: Auf dem

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

Hugo Mills wrote on 2015/11/18 19:08 +: On Wed, Nov 18, 2015 at 07:53:03PM +0100, linux-btrfs.tebu...@xoxy.net wrote: Hello there! I'm stumbling over this regularly. I explicitly upgraded the kernel to avoid this, but it still occurs me every few months: $ touch foo touch: »foo“

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

Qu Wenruo posted on Thu, 19 Nov 2015 08:42:13 +0800 as excerpted: > Although the metadata output is showing that you still have about 512M > available, but the 512M is Global Reserved space, or the unknown one. Unknown here, as the userspace (btrfs-progs) is evidently too old to show it as

Re: Kernel 3.19 and still "disk full" even though 'btrfs fi df" reports enough room left?

On Wed, 18 Nov 2015 19:53:03 +0100 linux-btrfs.tebu...@xoxy.net wrote: > $ uname -a > Linux neptun 3.19.0-31-generic #36~14.04.1-Ubuntu SMP Thu Oct 8 > 10:21:08 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux For whatever unknown reason, Ubuntu repeatedly chooses to stabilize on exactly the wrong