Re: btrfs-convert processing time

On Mon, Feb 20, 2012 at 9:29 PM, Olivier Bonvalet <btrfs.list@daevel.fr=

wrote:
On 20/02/2012 15:00, Fajar A. Nugraha wrote:

quoted

On Mon, Feb 20, 2012 at 8:50 PM, Hubert Kario[off-list ref] =A0wro=

te:

quoted

quoted

On Monday 20 of February 2012 14:41:33 Olivier Bonvalet wrote:

quoted

Lot of small files (like compressed email from Maildir), and lot o=

f

quoted

quoted

quoted

hardlinks, and probably low free space (near 15% I suppose).


So I think I have my answer :)

Yes, this is probably the worst possible combination.

Plese keep us updated. Just to have exact numbers for new users.

... although it would probably fail anyway due to btrfs hardlink lim=

it

quoted

in the same directory.

And in that case, btrfs-convert will abort, or ignore the error, or j=

ust

hang ?

On my simple test with ubuntu precise, loop-mounted ext4, 8k hardlinks:

$ sudo btrfs-convert /dev/loop0
creating btrfs metadata.
$ echo $?
139

so no useful error message, but it doesn't crash. And when mounted the
device still shows ext4.

A successful conversionn would look like this:

$ sudo btrfs-convert /dev/loop1
creating btrfs metadata.
creating ext2fs image file.
cleaning up system chunk.
conversion complete.

--=20
=46ajar
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