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