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https://issues.apache.org/jira/browse/CASSANDRA-12236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15398914#comment-15398914
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Sylvain Lebresne commented on CASSANDRA-12236:
----------------------------------------------
I fixed the unit test failures (mainly due to various minor errors in the
change to {{RowUpdateBuilder}} I did in the tests) in a new commit. There is 2
dtests failures for cqlsh DESCRIBE but that's just because a consequence of
this patch is that the {{cdc}} table properly won't be displayed by DESCRIBE by
default, which is imo fine. I have a trivial fix of that locally that I'll push
on commit. The rest of the dtest failures "seems" unrelated.
I seem to be have been able to start upgrade tests on that last branch which I
include below, but they haven't finished at the time of this writing so we'll
see the results.
| [12236-trunk|https://github.com/pcmanus/cassandra/commits/12236-trunk] |
[utests|http://cassci.datastax.com/job/pcmanus-12236-trunk-testall] |
[dtests|http://cassci.datastax.com/job/pcmanus-12236-trunk-dtest] | [upgrade
tests|http://cassci.datastax.com/view/Dev/view/pcmanus/job/pcmanus-upgrade_12236-upgrade/]
|
> 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.x
>
> 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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