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https://issues.apache.org/jira/browse/IGNITE-25534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksandr Chesnokov reassigned IGNITE-25534:
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Assignee: Aleksandr Chesnokov (was: Maksim Davydov)
> Validate that cluster might contain at most 2 different Ignite versions
> -----------------------------------------------------------------------
>
> Key: IGNITE-25534
> URL: https://issues.apache.org/jira/browse/IGNITE-25534
> Project: Ignite
> Issue Type: Improvement
> Reporter: Maksim Timonin
> Assignee: Aleksandr Chesnokov
> Priority: Major
> Labels: IEP-132
> Time Spent: 1h
> Remaining Estimate: 0h
>
> For Rolling Upgrade feature, Ignite cluster can contain 2 (at most) different
> versions of Ignite nodes. Let's add check for that.
> This check must be hidden for a while, and enabled by system property.
> Start point to see is OsDiscoveryNodeValidationProcessor
> Need to write compatibility tests, cover cases with thick clients, move
> coordinator, etc..
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