Deprecate the Tribe node
The Tribe node is deprecated in favour of Cross Cluster Search and will be removed in 7.0.
[[modules-tribe]]
== Tribe node
+deprecated[5.4.0,The `tribe` node is deprecated in favour of <<modules-cross-cluster-search>> and will be removed in Elasticsearch 7.0.]
+
The _tribes_ feature allows a _tribe node_ to act as a federated client across
multiple clusters.
