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https://issues.apache.org/jira/browse/IGNITE-24455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17925968#comment-17925968
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Alexey Scherbakov commented on IGNITE-24455:
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Started two nodes with the same consisten id.
It perfectly accepts.
> It's possible to create a physical cluster having non unique consistent ids.
> ----------------------------------------------------------------------------
>
> Key: IGNITE-24455
> URL: https://issues.apache.org/jira/browse/IGNITE-24455
> Project: Ignite
> Issue Type: Bug
> Reporter: Alexey Scherbakov
> Priority: Major
> Labels: bugbounty25, ignite-3
>
> {noformat}
> [defaultNode]> cluster topology physical
> ╔═════════════╤══════════════╤══════╤═══════════════╤══════════════════════════════════════╗
> ║ name │ host │ port │ consistent id │ id
> ║
> ╠═════════════╪══════════════╪══════╪═══════════════╪══════════════════════════════════════╣
> ║ defaultNode │ 172.25.4.102 │ 3344 │ defaultNode │
> 21ca3b66-40b9-4666-8b07-4942d0bcf413 ║
> ╟─────────────┼──────────────┼──────┼───────────────┼──────────────────────────────────────╢
> ║ defaultNode │ 172.25.4.109 │ 3344 │ defaultNode │
> abcec24c-437f-45a9-9025-477c97ca4136 ║
> ╚═════════════╧══════════════╧══════╧═══════════════╧══════════════════════════════════════╝{noformat}
> Possible solution: prevent cluster init if some nodes have non unique cluster
> ids.
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