Stanislav Lukyanov created IGNITE-8133:

             Summary: Baseline topology documentation improvement
                 Key: IGNITE-8133
             Project: Ignite
          Issue Type: Bug
          Components: documentation
    Affects Versions: 2.4
            Reporter: Stanislav Lukyanov
            Assignee: Stanislav Lukyanov

Baseline topology concept was added to Ignite in 2.4 by IEP-4. This changed 
Ignite cluster behavior when persistence is enabled (first of all, activation 
and rebalancing timings).
It seems that the current documentation may be confusing.

For example, the sentence
{quote}Note that the baseline topology is not set when the cluster is started 
for the first time; that's the only time when a manual intervention is 
may lead one to thinking that baseline topology is not used by default and 
needs to be enabled only if one wants to use it.

Also, the documentation describes the tools and commands that are used to 
manage the baseline topology and activation, but doesn't give guidelines on 
which nodes should be in the topology, when should it be changed, etc.

The documentation should be enhanced to
- give clear understanding that baseline topology always needs to be considered 
as a part of the cluster architecture when persistence is enabled;
- provide overview of the behavioral changes compared to AI 2.3 (use a 
note/warning block for that to separate it from the main text?);
- provide basic guidelines and suggestions of how one can start a new cluster 
and manage it (when to activate/deactivate, when to change baseline topology, 
what happens and what needs to be done when a node fails or joins, how to use 

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