[sheepdog] [PATCH v8 19/19] tests/functional: new test of object reclaim for a case of continuously snapshotted VDI

[Liu Yuan]

On Thu, May 22, 2014 at 09:59:22AM +0200, Valerio Pachera wrote:
> Tested-by: Valerio Pachera
> 
> Result of my testing is that snapshots get correctly removed freeing space
> in the cluster.
> I've been testing full replication (-c 2) and erasure code (-c 2:1).
> 
> Removing all snapshots and vdi (so no vdi left in the cluster), most of the
> time leave almost no objects (e.g. 6M).
> In some case (but we can't actually reproduce it), more objects are left
> (e.g. 600M).
> 
> Here's an example
> 
> s test         1  5.0 GB  1.0 GB  0.0 MB 2014-05-21 12:46   7c2b25
> 2
> s test         2  5.0 GB  4.4 GB  340 MB 2014-05-21 12:46   7c2b26
> 2
> s test         3  5.0 GB   24 MB  4.7 GB 2014-05-21 12:49   7c2b27
> 2
> s test         4  5.0 GB  4.4 GB  340 MB 2014-05-21 12:49   7c2b28
> 2
> s test         5  5.0 GB   28 MB  4.7 GB 2014-05-21 12:52   7c2b29
> 2
> s test         6  5.0 GB   32 MB  4.7 GB 2014-05-21 12:52   7c2b2a
> 2
>   test         0  5.0 GB  0.0 MB  4.7 GB 2014-05-21 12:53   7c2b2b      2
> 
> This is total size (dog node info), before removing the snapshot; after
> removing snapshots one after the other and, finally, the vdi.
> Total   682 GB  20 GB   663 GB    2%
> Total   682 GB  18 GB   664 GB    2%
> Total   682 GB  18 GB   664 GB    2%
> Total   682 GB  9.5 GB  673 GB    1%
> Total   682 GB  9.5 GB  673 GB    1%
> Total   682 GB  9.4 GB  673 GB    1%
> Total   682 GB  9.4 GB  673 GB    1%
> Total   682 GB  0.1 MB  682 GB    0%
> 
> Sheepdog daemon version 0.8.0_171_g4414730

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Thanks Valerio for your persistent testing! Hitoshi, could you please

Add Tested-by: Valerio Pachera <sirio81 at gmail.com> to your patch set?

Thanks
Yuan