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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14515) Short read protection in presence of almost-purgeable range tombstones may cause permanent data loss
Date Tue, 19 Jun 2018 23:08:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517612#comment-16517612
] 

Aleksey Yeschenko commented on CASSANDRA-14515:
-----------------------------------------------

3.0 branch [here|https://github.com/iamaleksey/cassandra/commits/14515-3.0]. Also, in addition
to the unit tests in the branch, 14330 dtest is now essentially a dtest for this ticket.

> Short read protection in presence of almost-purgeable range tombstones may cause permanent
data loss
> ----------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14515
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14515
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Blocker
>             Fix For: 3.0.x, 3.11.x, 4.0.x
>
>
> Because read responses don't necessarily close their open RT bounds, it's possible to
lose data during short read protection, if a closing bound is compacted away between two adjacent
reads from a node.



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