Jeremiah Jordan created CASSANDRA-12236:
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Summary: 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
Priority: Blocker
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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