[jira] [Assigned] (IGNITE-25567) Node start dependent on COLOCATION_FEATURE_FLAG

["Roman Puchkovskiy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-25567?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Roman Puchkovskiy reassigned IGNITE-25567:
------------------------------------------

    Assignee: Roman Puchkovskiy

>  Node start dependent on COLOCATION_FEATURE_FLAG
> ------------------------------------------------
>
>                 Key: IGNITE-25567
>                 URL: https://issues.apache.org/jira/browse/IGNITE-25567
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Alexander Lapin
>            Assignee: Roman Puchkovskiy
>            Priority: Major
>              Labels: ignite-3
>
> h3. Motivation
> Following logic is expected to be implemented.
>  * If the node is started on top of non-colocation PDS, it should ignore COLOCATION_FEATURE_FLAG and start in non-colocation mode.
>  * If the node is started on top of colocation PDS, it should ignore COLOCATION_FEATURE_FLAG and start in colocation mode.
>  * If it's new node startup, it should start in the COLOCATION_FEATURE_FLAG mode.
> h3. Implementation Notes
> If it's not trivial to analyse actual PDS, me may use following vault-based approach.
>  * On first startup node writes colocation mode to vault.
>  * On every start node reads colocation mode from vault, if there's no one - that mean that it's non-colocation mode. Otherwise node starts in corresponding mode specified in vault.



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