[Users] vzctl compact fails to compact container, what can i do

[Rene C.]

Indeed, that seems to have been at least part of the problem, thanks much.

Still, after having removed all snapshots and rerun vzctl compress, I
still ended up with a pigz compressed backup of 40G for a container
with 2G used disk space (shown by df -h within the container).  Any
idea how that can happen?

On Sat, Dec 21, 2013 at 11:13 PM, Andrew Vagin <avagin at parallels.com> wrote:
> On Sat, Dec 21, 2013 at 09:08:43PM +0700, Rene C. wrote:
>> We have a container that needs moving to another hardware node, but a
>> vzpbackup of it is 250G.
>>
>> Within the container only 1.9G is used:
>>
>> /dev/ploop33244p1  393G  1.9G  371G   1% /
>>
>> Tried running a vzctl compact but it just shows a few lines and stops
>> without having done anything:
>>
>> # vzctl compact 1709
>> Trying to find free extents bigger than 0 bytes
>> Waiting
>> Call FITRIM, for minlen=33554432
>> Call FITRIM, for minlen=16777216
>> Call FITRIM, for minlen=8388608
>> Call FITRIM, for minlen=4194304
>> Call FITRIM, for minlen=2097152
>> Call FITRIM, for minlen=1048576
>> 0 clusters have been relocated
>>
>> /vza1/private/1709/root.hdd has following files:
>>
>> -rw-r--r-- 1 root root            1478 Dec 21 20:35 DiskDescriptor.xml
>> -rw------- 1 root root               0 Nov 27 12:33 DiskDescriptor.xml.lck
>> -rw------- 1 root root 257 447 428 096 Dec 20 07:42 root.hdd
>> -rw------- 1 root root     376 438 784 Dec 20 09:27 root.hdd.{e66fccca-85cf-4bf2-888d-6669988f1da6}
>> -rw------- 1 root root     517 996 544 Dec 21 17:49 root.hdd.{f881c603-48cd-4e21-af63-45e49ce715ba}
>> drwx------ 2 root root            4096 Nov 27 12:34 root.hdd.mnt
>>
>> What can we do to compress this down to the actual 2G used?
>
> Looks like you did a snapshot, didn't you? In this case only the last
> delta is compacted.
>
> You can try to delete snapshots and compress the disk again.
>
>>
>> 2.6.32-042stab081.5
>> e2fsprogs-resize2fs-static-1.42.3-3.el6.1.ovz.x86_64
>> vzctl-4.5.1-1.x86_64
>> vzkernel-2.6.32-042stab081.5.x86_64
>> vzctl-core-4.5.1-1.x86_64
>> vzquota-3.1-1.x86_64
>> vzstats-0.5.2-1.noarch
>> ploop-lib-1.9-1.x86_64
>> ploop-1.9-1.x86_64
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