[jira] [Updated] (CASSANDRA-14330) Handle repeat open bound from SRP in read repair

["Josh McKenzie (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-14330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh McKenzie updated CASSANDRA-14330:
--------------------------------------
    Bug Category: Parent values: Correctness(12982)Level 1 values: Transient Incorrect Response(12987)

> Handle repeat open bound from SRP in read repair
> ------------------------------------------------
>
>                 Key: CASSANDRA-14330
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14330
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Aleksey Yeschenko
>            Assignee: Aleksey Yeschenko
>            Priority: Normal
>             Fix For: 3.0.17, 3.11.3, 4.0
>
>
> If there is an open range tombstone in an iterator, a short read protection request for it will include a repeat open bound. Currently, {{DataResolver}} doesn't expect this, and will raise an assertion, timing out the request:
> {code:java}
> java.lang.AssertionError: Error merging RTs on test.test: merged=null, versions=[Marker EXCL_START_BOUND(0)@0, null], sources={[/127.0.0.1, /127.0.0.2]}, responses:
>     /127.0.0.1 => [test.test] key=0 partition_deletion=deletedAt=-9223372036854775808, localDeletion=2147483647 columns=[[] | []]
>        Row[info=[ts=1] ]: ck=0 | ,
>    /127.0.0.2 => [test.test] key=0 partition_deletion=deletedAt=-9223372036854775808, localDeletion=2147483647 columns=[[] | []]
>        Row[info=[ts=-9223372036854775808] del=deletedAt=1, localDeletion=1521572669 ]: ck=0 |
>        Row[info=[ts=1] ]: ck=1 | 
> {code}
> As this is a completely normal/common scenario, we should allow for this, and relax the assertion.
> Additionally, the linked branch makes the re-throwing {{AssertionError}} more detailed and more correct: the responses are now printed out in the correct order, respecting {{isReversed}}, the command causing the assertion is now logged, as is {{isReversed}} itself, and local deletion times for RTs.



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