[sheepdog-users] Testing snapshot-object-reclaim

[Hitoshi Mitake]

At Mon, 17 Mar 2014 13:58:03 +0100,
Valerio Pachera wrote:
> 
> > Valerio, could you test the latest snapshot-object-reclaim branch of
> > sheepdog with stable or master QEMU (not my latest
> > snapshot-object-reclaim branch)?
> 
> 
> root at test004:/usr/src/sheepdog# git branch
> master
> * snapshot-object-reclaim
> 
> root at test004:/usr/src/sheepdog# sheep -v
> Sheepdog daemon version 0.8.0_135_ged02881
> 
> root at test004:/usr/src/qemu# git branch
> * master
> 
> root at test004:/usr/src/qemu# qemu-system-x86_64 --version
> QEMU emulator version 1.7.90, Copyright (c) 2003-2008 Fabrice Bellard
> 
> root at test006:~# dog vdi list
>   Name   Id    Size    Used  Shared    Creation time   VDI id  Copies  Tag
>   test    0   10 GB  2.3 GB  0.0 MB 2014-03-17 09:03   7c2b25    2:1
> 
> root at test006:~# dog node info
> Id Size    Used    Avail   Use%
>  0 233 GB  1.2 GB  232 GB    0%
>  1 452 GB  1.2 GB  451 GB    0%
>  2 500 GB  1.2 GB  499 GB    0%
> Total   1.2 TB  3.5 GB  1.2 TB    0%
> Total virtual image size   10 GB
> 
> root at test006:~# dog vdi snapshot test
> root at test006:~# dog vdi snapshot test
> root at test006:~# dog vdi snapshot test
> root at test006:~# dog vdi snapshot test
> root at test006:~# dog vdi snapshot test
> 
> root at test006:~# dog vdi list
>   Name   Id    Size    Used  Shared    Creation time   VDI id  Copies  Tag
> s test    1   10 GB  2.3 GB  0.0 MB 2014-03-17 09:03   7c2b25    2:1
> s test    2   10 GB  5.9 GB  304 MB 2014-03-17 13:15   7c2b26    2:1
> s test    3   10 GB  4.0 MB  6.2 GB 2014-03-17 13:21   7c2b27    2:1
> s test    4   10 GB  5.9 GB  316 MB 2014-03-17 13:21   7c2b28    2:1
> s test    5   10 GB  0.0 MB  6.2 GB 2014-03-17 13:44   7c2b29    2:1
>   test    0   10 GB   80 MB  6.1 GB 2014-03-17 13:44   7c2b2a    2:1
> 
> root at test006:~# dog node info
> Id Size    Used    Avail   Use%
>  0 233 GB  15 GB   217 GB    6%
>  1 452 GB  15 GB   437 GB    3%
>  2 500 GB  15 GB   485 GB    3%
> Total   1.2 TB  46 GB   1.1 TB    3%
> Total virtual image size   10 GB
> 
> root at test006:~# time for n in $(seq 1 5); do dog vdi delete -s $n test; done
> 
> real    5m2.849s
> user    0m0.000s
> sys0m0.004s
> 
> root at test006:~# dog vdi list
>   Name   Id    Size    Used  Shared    Creation time   VDI id  Copies  Tag
>   test    0   10 GB   80 MB  6.1 GB 2014-03-17 13:44   7c2b2a    2:1
> 
> root at test006:~# dog node info
> Id Size    Used    Avail   Use%
>  0 233 GB  3.2 GB  230 GB    1%
>  1 452 GB  3.2 GB  449 GB    0%
>  2 500 GB  3.2 GB  497 GB    0%
> Total   1.2 TB  9.5 GB  1.1 TB    0%
> Total virtual image size   10 GB
> 
> root at test006:~# dog vdi delete test
> 
> root at test006:~# dog node info
> Id Size    Used    Avail   Use%
>  0 233 GB  271 MB  232 GB    0%
>  1 452 GB  271 MB  452 GB    0%
>  2 500 GB  271 MB  499 GB    0%
> Total   1.2 TB  812 MB  1.2 TB    0%

Hmm, it is odd. Can I see an output of tree command of the sheep dir?
I think all objects which remain would be ledger.

Thanks,
Hitoshi