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Posted to commits@cassandra.apache.org by "Benedict Elliott Smith (Jira)" <ji...@apache.org> on 2019/10/25 13:09:00 UTC

[jira] [Updated] (CASSANDRA-11219) Some Paxos issues

     [ https://issues.apache.org/jira/browse/CASSANDRA-11219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benedict Elliott Smith updated CASSANDRA-11219:
-----------------------------------------------
    Component/s: Feature/Lightweight Transactions

> Some Paxos issues
> -----------------
>
>                 Key: CASSANDRA-11219
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11219
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Feature/Lightweight Transactions, Legacy/Core
>            Reporter: Andy Chen
>            Priority: Normal
>
> Two issues,
> 1. ‘Raw Paxos' without Single Leader may result in non-progress, though waiting and retry may solve part of the problem, but cannot be proven that it can make progress.
> 2. learning issue, mostRecentCommit may not sufficient for a learner to catch up, such as node A, B and C, C is down, while A and B done with two Commits, c1, and c2. now when C is up, only c2 could be learned by C, since update is based on row changes (according to my understanding), data may inconsistent due to this



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