[sheepdog-users] garbage objects not removed after recovery

[Valerio Pachera]

This may be the case of a node removed from cluster for maintenance.
During maintenance one or more vdi get deleted.
The node gets inserted backup in the cluster without clearing all its
objects (most of them can be reused).

Sheepdog daemon version 0.8.0_223_ge4735ba

dog node list
  Id   Host:Port         V-Nodes       Zone
   0   192.168.10.4:7000        100   67807424
   1   192.168.10.5:7000        209   84584640
   2   192.168.10.6:7000        101  101361856
   3   192.168.10.7:7000        101  118139072

dog cluster format

dog vdi create -P test 10G

dog node kill 3

dog vdi delete test

Insert backup node id 3

After recovery node id 3 still has data that I consider to be garbage.

dog node info
Id      Size    Used    Avail   Use%
 0      217 GB  0.0 MB  217 GB    0%
 1      452 GB  0.0 MB  452 GB    0%
 2      220 GB  0.0 MB  220 GB    0%
 3      220 GB  6.8 GB  213 GB    3%
Total   1.1 TB  6.8 GB  1.1 TB    0%
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