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@@ -10,7 +10,12 @@ federated search requests.
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Cross cluster search works by configuring a remote cluster in the cluster state and connecting only to a
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limited number of nodes in the remote cluster. Each remote cluster is referenced by a name and a list of seed nodes.
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-Those seed nodes are used to discover nodes in the remote cluster which are eligible as _gateway nodes_.
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+When a remote cluster is registered, its cluster state is retrieved from one of the seed nodes so that up to 3
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+_gateway nodes_ are selected to be connected to as part of upcoming cross cluster search requests.
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+Cross cluster search requests consist of uni-directional connections from the coordinating node to the previously
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+selected remote nodes only. It is possible to tag which nodes should be selected through
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+node attributes (see <<cross-cluster-search-settings>>).
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+
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Each node in a cluster that has remote clusters configured connects to one or more _gateway nodes_ and uses
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them to federate search requests to the remote cluster.
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@@ -169,6 +174,7 @@ will be prefixed with their remote cluster name:
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// TESTRESPONSE
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[float]
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+[[cross-cluster-search-settings]]
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=== Cross cluster search settings
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`search.remote.connections_per_cluster`::
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Luca Cavanna