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https://issues.apache.org/jira/browse/IGNITE-27746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Steshin updated IGNITE-27746:
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Labels: ise (was: )
> MDC. Implement parallel ping of DC2's nodes with the connection recovery.
> -------------------------------------------------------------------------
>
> Key: IGNITE-27746
> URL: https://issues.apache.org/jira/browse/IGNITE-27746
> Project: Ignite
> Issue Type: Sub-task
> Reporter: Vladimir Steshin
> Priority: Major
> Labels: ise
>
> Consider:
> * The Multy-DC feature is on.
> * A corner node from DC1 can't send a message to it's next node in DC2.
> * DC2 is unavailable.
> * No node of DC1 can connect.
> To prevent sequential nodes failure in DC1 we need to extend the connection
> recovery mechanics. We need to know whether DC2 is completely unavailable. If
> so, we switch to DC/brain split but keep nodes of DC1 online. To achive this
> we might ping DC2's nodes from the edge node while it does the normal
> connection recovery under the same connection recovery timeout. If the
> recovery fails and no ping to DC2 is success, we consider DC1 to work
> separatelly from DC2.
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