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https://issues.apache.org/jira/browse/CASSANDRA-21174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18059656#comment-18059656
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Marcus Eriksson edited comment on CASSANDRA-21174 at 2/19/26 3:31 PM:
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-+1 from me- edit: just realised the startup flag can't be done like this - all
nodes need to agree on being able to execute the transformation so we can't
have a flag like this set on just one node.
was (Author: krummas):
+1 from me
> Forbid nodes upgrading to a version which cannot read existing log entries
> --------------------------------------------------------------------------
>
> Key: CASSANDRA-21174
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21174
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Transactional Cluster Metadata
> Reporter: Aparna Naik
> Assignee: Aparna Naik
> Priority: Normal
> Fix For: 6.x
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> It should not be possible for a node to join a cluster (either via bootstrap
> or by replacing an existing member), unless the minimum metadata
> serialization it supports is at least equal to the cluster's
> minCommonSerializationVersion. This is to prevent nodes being unable to read
> log entries or metadata snapshots when joining the cluster.
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