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https://issues.apache.org/jira/browse/CASSANDRA-21174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18061198#comment-18061198
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Aparna Naik commented on CASSANDRA-21174:
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Thanks for taking a look Sam. Attached the CI results.
> 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
>
> Attachments: ci_summary.html, result_details.tar.gz
>
> Time Spent: 2h
> 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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