[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3899: No indication of failure if we can't match an "announcement"

[Tahoe-LAFS]

#3899: No indication of failure if we can't match an "announcement"
---------------------+---------------------------
 Reporter:  meejah   |          Owner:
     Type:  defect   |         Status:  new
 Priority:  normal   |      Milestone:  undecided
Component:  unknown  |        Version:  n/a
 Keywords:           |  Launchpad Bug:
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 When asked to instantiate a storage-client in
 `NativeStorageServer._make_storage_system` there is no indication (in logs
 or otherwise) that an announcement failed to match.

 This could be, for example, a typo in a plugin name.

 In the particular case I'm looking at, there isn't an introducer at all
 just static servers in `servers.yaml` so the behavior a user sees is that
 one or more servers are configured, but nothing shows up in the Welcome
 page (nor in the logs).

 Ideally the Welcome page would show some indication of the problem but
 logging something would be a useful first step.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3899>
Tahoe-LAFS <https://Tahoe-LAFS.org>
secure decentralized storage