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https://issues.apache.org/jira/browse/CASSANDRA-18993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17783817#comment-17783817
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Paulo Motta commented on CASSANDRA-18993:
-----------------------------------------

Thanks for the repro steps Alex! This reproduces for me in cassandra-5.0 
branch, but not on cassandra-4.1. Do you have any reason to believe this 
affects 4.1?

> Harry-found silent data loss issue
> ----------------------------------
>
>                 Key: CASSANDRA-18993
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-18993
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Legacy/Core
>            Reporter: Alex Petrov
>            Assignee: Jacek Lewandowski
>            Priority: Normal
>             Fix For: 4.1.x, 5.0-beta, 5.x
>
>
> Harry has discovered a silent data loss bug in trunk, but it goes all the way 
> back to appx 4.1.
> Some rows are not visble after flush. Compared Harry repro running a memtable 
> instead of a regular Harry model, and it still reproduces (in other words, it 
> is almost certainly not a Harry issue).
> Simple schema, and only one flush is required for repro, so not an unlikely 
> bug. Max partition size is 1k rows, so not an unlikely setup here, either. No 
> concurrency involved; reproduces stably. Good chance this is related to the 
> fact the schema has DESC clusterings.
> I am working on posting a Harry branch that stably reproduces it.
>  



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