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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14824) Expand range tombstone validation checks to multiple interim request stages
Date Mon, 15 Oct 2018 19:25:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16650661#comment-16650661
] 

Aleksey Yeschenko commented on CASSANDRA-14824:
-----------------------------------------------

Code for [3.0|https://github.com/iamaleksey/cassandra/commits/14824-3.0], CI for [3.0|https://circleci.com/workflow-run/7cd1b687-dabd-4c02-b70b-3ca908471043];
Some hiccups with 3.11 and 4.0 branches, will resolve soonish.

> 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
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Major
>             Fix For: 3.0.x, 3.11.x, 4.0.x
>
>
> {{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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