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https://issues.apache.org/jira/browse/CASSANDRA-12236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-12236:
-----------------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Alright, so as far as this issue is concerned, the unit and dtest runs were
clean (outside of the dtest failure on cqlsh DESCRIBED due to the cdc option
not being there by default and for which I've committed a fix to the dtest
for), so committed, thanks.
It's a bit unclear how much upgrade tests this actually fix as there is a bit
too much noise currently, but it at the very least remove one know reason for
failure.
> RTE from new CDC column breaks in flight queries.
> -------------------------------------------------
>
> Key: CASSANDRA-12236
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12236
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jeremiah Jordan
> Assignee: Sylvain Lebresne
> Fix For: 3.8, 3.9
>
> Attachments: 12236.txt
>
>
> This RTE is not harmless. It will cause the internode connection to break
> which will cause all in flight requests between these nodes to die/timeout.
> {noformat}
> - Due to changes in schema migration handling and the storage format
> after 3.0, you will
> see error messages such as:
> "java.lang.RuntimeException: Unknown column cdc during
> deserialization"
> in your system logs on a mixed-version cluster during upgrades. This
> error message
> is harmless and due to the 3.8 nodes having cdc added to their schema
> tables while
> the <3.8 nodes do not. This message should cease once all nodes are
> upgraded to 3.8.
> As always, refrain from schema changes during cluster upgrades.
> {noformat}
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