Release 0.10.0
Added
- Cluster can now operate without vshard roles (if you don't need
sharding). Deprecation warning about impicit vshard roles isn't issued
any more, they aren't registered unless explicitly specified either in
`cluster.cfg({roles=...})` or in `dependencies` to one of user-defined
roles.
- New role flag `hidden = true`. Hidden roles aren't listed in
`cluster.admin.get_replicasets().roles` and therefore in WebUI. Hidden
roled are supposed to be a dependency for another role, yet they still
can be enabled with `edit_replicaset` functio both Lua and GraphQL).
- New role flag: `permanent = true`. Permanent roles are always enabled.
Also they are hidden implicitly.
- New functions in cluster test_helpers -
`Cluster:upload_config(config)` and `Cluster:download_config()`
Fixed
- `cluster.call_rpc` used to return 'Role unavailable' error as a first
argument instead of `nil, err`. It can appear when role is specified in
clusterwide config, but wasn't initialized properly. There are two
reasons for that: race condition, or prior error in either role `init`
or `apply_config` methods.