Add new shard modes as a map entry to automatically parse them in
`set-mode` command. The change also automatically adds new modes to help
message.
Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
`Degraded` mode can be set by the administrator if needed.
Modifying operations in this mode can lead node into an inconsistent state
because metabase checks such as lock checking are not performed.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
Do not return backend type from the service for now, because memory
backend is expected to vanish.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
Eventually more parameters will be supported (#1390) and after blobstor
configuration refactoring the output will certainly change. Implement
the simplest approach now.
Marshaling the result directly results in too ugly names and they cannot
be easily customized. Marshaling the results via `jsonpb` is better but
is not that flexible in terms of what we want to output.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
If the key can't be fetched, an error is always returned, so it makes
sense to fail the whole command inside of a `key.Get*()`.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
