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# Cluster member configuration

Each cluster member has its own key/value configuration with the following supported namespaces:

- `user` (free form key/value for user metadata)

- `scheduler` (options related to how the member is automatically targeted by the cluster)

The following keys are currently supported:

`scheduler.instance`

Controls how instances are scheduled to run on this member

Key: | `scheduler.instance`
Type: | string
Default: | `all`

Possible values are `all`, `manual`, and `group`. See Automatic placement of instances for more information.

`user.*`

Free form user key/value storage

Key: | `user.*`
Type: | string

User keys can be used in search.