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https://issues.apache.org/jira/browse/CASSANDRA-13704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18042244#comment-18042244
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Jordan West commented on CASSANDRA-13704:
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Agree with Scott and Jeff as someone whose been in data inconsistency scenarios
that took weeks to recover that would’ve been prevented if running this patch.
Is it perfect, no. Does it cover 100% of scenarios, no. Is it strictly better
than not running it, absolutely yes.
> Safer handling of out of range tokens
> -------------------------------------
>
> Key: CASSANDRA-13704
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13704
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Legacy/Coordination, Legacy/Observability
> Reporter: Sam Tunnicliffe
> Assignee: Caleb Rackliffe
> Priority: Urgent
> Fix For: 4.0.14, 4.1.7, 5.0.1
>
> Attachments: CASSANDRA-13704_5-0_23_ci_summary.html,
> CASSANDRA-13704_5-0_23_results_details.tar.xz,
> CASSANDRA-13704_5-0_24_ci_summary.html,
> CASSANDRA-13704_5-0_24_results_details.tar.xz,
> CASSANDRA-13704_5-0_25_ci_summary.html,
> CASSANDRA-13704_5-0_25_results_details.tar.xz, ci_summary-1.html,
> ci_summary-2.html, ci_summary.html, result_details.tar-1.gz,
> result_details.tar-2.gz, result_details.tar.gz
>
> Time Spent: 8h 10m
> Remaining Estimate: 0h
>
> It is possible for nodes to have a divergent view of the ring, which can
> result in some operations being sent to the wrong nodes. This is an umbrella
> ticket to mitigate such issues by adding logging when a node is asked to
> perform an operation for tokens it does not own. This will be useful for
> detecting when the nodes' views of the ring diverge, which is not highly
> visible at the moment, and also for post-hoc analysis.
> It may also be beneficial to straight up reject certain operations, though
> this will need to balance the risk of performing those ops against the
> consequences rejecting them has on availability.
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