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Posted to commits@cassandra.apache.org by "Blake Eggleston (Jira)" <ji...@apache.org> on 2022/06/24 16:47:00 UTC
[jira] [Updated] (CASSANDRA-17096) CEP-15: (Accord) Liveness / Repair
[ https://issues.apache.org/jira/browse/CASSANDRA-17096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Blake Eggleston updated CASSANDRA-17096:
----------------------------------------
Change Category: Operability
Complexity: Challenging
Reviewers: Blake Eggleston
Status: Open (was: Triage Needed)
> CEP-15: (Accord) Liveness / Repair
> ----------------------------------
>
> Key: CASSANDRA-17096
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17096
> Project: Cassandra
> Issue Type: New Feature
> Components: Accord
> Reporter: Benedict Elliott Smith
> Assignee: 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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