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https://issues.apache.org/jira/browse/CASSANDRA-19967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benedict Elliott Smith updated CASSANDRA-19967:
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Resolution: Fixed
Status: Resolved (was: Triage Needed)
> Accord: Refine epoch quorum intersections, sync points, conflict relations
> and outcome inference
> ------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-19967
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19967
> Project: Apache Cassandra
> Issue Type: Improvement
> Reporter: Benedict Elliott Smith
> Priority: Normal
>
> - ExclusiveSyncPoints must imply global cluster properties, by executing on
> all participating epochs so that across all healthy replicas we can know all
> lower TxnId are durably applied
> - Conflict relations are managed at Token rather than Key level to improve
> memory occupancy for workloads with large keys
> - Epoch quorum intersections have been updated: preaccept no longer needs to
> chase the execution epoch, and recovery now contacts unmigrated epochs for
> dependency calculation; fast path decisions only involve the proposal epoch.
> This behaviour is now partially configurable.
> - Simplifies and fixes the inference of a transaction's outcome when some
> shards have truncated the transaction
> - Refined internal representations of key ownership across epoch changes
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