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https://issues.apache.org/jira/browse/CASSANDRA-16878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17485785#comment-17485785
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Andres de la Peña commented on CASSANDRA-16878:
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[~bereng] thanks for the review.
That failing in-JVM dtest
([{{testNoSuchRepairSessionAnticompaction}}|https://app.circleci.com/pipelines/github/adelapena/cassandra/1268/workflows/aef1c703-c816-40f8-8e07-9055027d6403/jobs/12000])
also seems to fail in trunk, as it's shown by [this repeated
run|https://app.circleci.com/pipelines/github/adelapena/cassandra/1280/workflows/8a4e04cb-64cc-46a3-9e1e-c946dfafc7fa/jobs/12114].
It only hits 18 failures in 1000 iterations, so it can have been missed by
Butler. I have created CASSANDRA-17335 to address it.
> Race in commit log replay can cause rejected mutations
> ------------------------------------------------------
>
> Key: CASSANDRA-16878
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16878
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/Local Write-Read Paths
> Reporter: Andres de la Peña
> Assignee: Andres de la Peña
> Priority: Normal
> Fix For: 3.0.x, 3.11.x, 4.0.x, 4.x
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> We don't force order in the execution of replayed mutations and hence a
> mutation can move ahead of or behind a schema change it relies on (e.g.
> added/removed column), which can then cause it to be rejected because of a
> schema mismatch.
> To fix this, we need to identify schema mutations and make sure the log
> enforces their execution after all previous mutations have completed and
> before anything following is started.
> Schema mutations are
> [flushed|https://github.com/apache/cassandra/blob/cassandra-4.0.0/src/java/org/apache/cassandra/schema/SchemaKeyspace.java#L1266-L1271]
> after being applied, so this only would be a problem if the node abruptly
> stops before flushing the schema mutation.
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