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[9.0] Amends the anomaly detection upgrade instructions #3002

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Mar 25, 2025
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[9.0] Amends the anomaly detection upgrade instructions #3002

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8 changes: 5 additions & 3 deletions docs/en/install-upgrade/upgrading-stack.asciidoc
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Original file line number Diff line number Diff line change
Expand Up @@ -227,13 +227,14 @@ Note the number of replicas in the response. For example:
}
----

.. Set the number of replicas to `0.`
.. Set the number of replicas to `0`. You must also set the `auto_expand_replicas` parameter to `false` to change the number of replicas:
+
[source,console]
----
PUT /.reindexed-v9-ml-anomalies-custom-example/_settings
{
"index": {
"auto_expand_replicas": false,
"number_of_replicas": 0
}
}
Expand Down Expand Up @@ -261,14 +262,15 @@ The response will contain a `task_id`. You can check when the task is completed
GET _tasks/<task_id>
----

.. Set the number of replicas to the original number when the reindexing is finished.
.. Set the number of replicas to the original number when the reindexing is finished. Optionally, you can set the `auto_expand_replicas` parameter back to its default value (`0-1`) to allow the number of replicas to be automatically adjusted based on the number of data nodes in the cluster.
+
[source,console]
----
PUT /.reindexed-v9-ml-anomalies-custom-example/_settings
{
"index": {
"number_of_replicas": "<original_number_of_replicas>"
"number_of_replicas": "<original_number_of_replicas>",
"auto_expand_replicas": "0-1"
}
}
----
Expand Down