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https://issues.apache.org/jira/browse/CASSANDRA-6695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13899243#comment-13899243
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Piotr Kołaczkowski commented on CASSANDRA-6695:
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LGTM :)
> Don't exchange schema between nodes with different versions (no pull, no push)
> ------------------------------------------------------------------------------
>
> Key: CASSANDRA-6695
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6695
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Piotr Kołaczkowski
> Assignee: Aleksey Yeschenko
> Fix For: 1.2.16, 2.0.6, 2.1
>
> Attachments: 6695-v2.txt, 6695.patch
>
>
> Subject. Don't push schema to unknown-, or differently major-versioned nodes,
> and don't pull schema from them, either.
> Since we don't support schema altering during upgrade, and adding nodes
> during cluster upgrades is also a non-recommended thing, this is what we are
> going to do.
> Until CASSANDRA-6038, that is.
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