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https://issues.apache.org/jira/browse/CASSANDRA-20921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benedict Elliott Smith reassigned CASSANDRA-20921:
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Assignee: Benedict Elliott Smith
> Accord: Introduce hardRemoved concept for marking nodes permanently offline
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-20921
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20921
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Accord
> Reporter: Benedict Elliott Smith
> Assignee: Benedict Elliott Smith
> Priority: Normal
>
> If Accord experiences unrecoverable loss of a quorum, it will refuse to make
> progress. This patch introduces a mechanism for marking nodes as permanently
> offline to permit these minority quorums to make progress without the lost
> nodes. This may result in undetectable consistency violations, since we have
> exceeded the maximum failure tolerance of the quorum.
> Also fix:
> - Paxos should not update minHlc if AccordService is not setup
> - Remove `EndpointMapper` methods that require non-null, to ensure
> call-sites handle null case explicitly
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