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Andres de la Peña commented on CASSANDRA-16878: ----------------------------------------------- [~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. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org