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https://issues.apache.org/jira/browse/CASSANDRA-17096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17485837#comment-17485837
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Benedict Elliott Smith commented on CASSANDRA-17096:
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[PR|https://github.com/belliottsmith/accord/pull/2]
> CEP-15: (Accord) Liveness / Repair
> ----------------------------------
>
> Key: CASSANDRA-17096
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17096
> Project: Cassandra
> Issue Type: Sub-task
> Components: Accord
> Reporter: Benedict Elliott Smith
> Priority: Normal
>
> Accord requires replicas apply a consistent prefix of agreed operations, and
> permits many operations to be in-flight and depending on each other. These
> both benefit from strong liveness properties to ensure the system is always
> able to make rapid progress. To this end, we will introduce a gossip-like
> mechanism for communicating knowledge about the replication status of known
> transactions. Nodes will frequently reconcile their knowledge of each other’s
> knowledge with each other, so that the status of a transaction on other nodes
> can be rapidly determined.
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