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[7.9] [DOCS] Add deprecation docs for cluster recovery defer settings (#77786) #77957

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[7.9] [DOCS] Add deprecation docs for cluster recovery defer settings (#77786) #77957

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19 changes: 19 additions & 0 deletions docs/reference/migration/migrate_7_7.asciidoc
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Expand Up @@ -97,6 +97,25 @@ If you configure more than one realm of any type with the same order, the node w
The `auth.password` setting for the monitoring HTTP exporter has been deprecated and will be
removed in version 8.0.0. Please use the `auth.secure_password` setting instead.

[discrete]
[[deprecate-defer-cluster-recovery-settings]]
==== Settings used to defer cluster recovery pending a certain number of master nodes are deprecated.

The following cluster settings are now deprecated:

* `gateway.expected_nodes`
* `gateway.expected_master_nodes`
* `gateway.recover_after_nodes`
* `gateway.recover_after_master_nodes`

It is safe to recover the cluster as soon as a majority of master-eligible nodes
have joined. There is no benefit in waiting for any additional master-eligible
nodes to start.

To avoid deprecation warnings, discontinue use of the deprecated settings. If
needed, use `gateway.expected_data_nodes` or `gateway.recover_after_data_nodes`
to defer cluster recovery pending a certain number of data nodes.

[discrete]
[[breaking_77_search_changes]]
=== Search changes
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