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Adds isolated instance mode description #5136

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@AArdeev AArdeev commented May 27, 2025

The ```isolated:true``` option moves the instance to RO mode
In this mode, various debugging & maintanance operations can be performed

Fixes #4632
@AArdeev AArdeev requested a review from Totktonada May 27, 2025 14:03
@AArdeev AArdeev self-assigned this May 27, 2025
@AArdeev AArdeev added documentation Improvements or additions to documentation config 3.3 labels May 27, 2025
@github-actions github-actions bot temporarily deployed to branch-gh-4632-add-isolated-mode-on-instance May 27, 2025 14:04 Destroyed
Fixes language and syntax
@github-actions github-actions bot temporarily deployed to branch-gh-4632-add-isolated-mode-on-instance May 28, 2025 05:41 Destroyed
@github-actions github-actions bot temporarily deployed to branch-gh-4632-add-isolated-mode-on-instance May 28, 2025 05:53 Destroyed
@AArdeev AArdeev added the server [area] Task relates to Tarantool's server (core) functionality label May 28, 2025
@@ -2836,6 +2836,38 @@ Attributes must be ``key: value`` pairs with string keys and values.

See also: :ref:`configuration_labels`

.. _configuration_reference_isolated_mode:
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Forgot to say it on the previous review iteration: AFAIR, options/sections on each level are sorted alphabetically. Here isolated goes after labels.

Since version :doc:`3.3.0 </release/3.3.0>`, a new ``isolated`` option is added to instance configuration.

The option takes boolean values, by default it is set to ``false``.
``isolated:true`` moves the instance it has been applied at to the **isolated** mode.
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@Totktonada Totktonada May 30, 2025

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Nit: isolated: true looks better for me (comparing to isolated:true).

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Thank you for working on it!

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config: isolated mode for an instance
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