Hi,
I'm in the process of documenting failure modes (for ops documentation
etc). Now I think I understand the intent:
- swift tries to ensure you always have the number of configured replicas
In the case of missing or unmounted devices I'm seeing the expected
behaviour i.e:
- new object creation results in the configured number of replicas (some
stored on handoff nodes)
- existing objects replicated on handoff to produce the correct replica
number
In the case of a node (or a region) I'm *not* seeing analogous behaviour
for *existing* objects, i.e I am a replica down after shutting down on
of my nodes and waiting a while.
I am testing using swift 2.7.on a small cluster of vms (4 nodes, 4
devices, 2 regions) - now it may be that my setup is just too trivial
(or maybe I haven't waited long enough for swift decide my storage node
is really down). Any thoughts? I'd like to understand precisely what is
supposed to happen when a node (and also an entire region) is unavailable.
Cheers
Mark
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