[jira] [Updated] (CASSANDRA-14824) Expand range tombstone validation checks to multiple interim request stages

["C. Scott Andreas (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-14824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

C. Scott Andreas updated CASSANDRA-14824:
-----------------------------------------
    Component/s: Local Write-Read Paths

> Expand range tombstone validation checks to multiple interim request stages
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14824
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14824
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local Write-Read Paths
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Major
>             Fix For: 3.0.18, 3.11.4, 4.0
>
>
> {{RTBoundValidator}} was originally only added to verify the end-game response iterator produced by {{ReadCommand}}.
> However, turns out it's possible for sequencing errors in lower-level iterators to be silently erased by upstream iterators - as a result of merging two invalid iterators into one valid iterator, for example. CASSANDRA-14823 can create such a scenario.
> The upcoming patch would attach the checker at the intermediate stages, ensuring that we can detect those otherwise silent corruptions.



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