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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-13274) Fix rolling upgrade to 4.0+
Date Mon, 27 Mar 2017 13:50:41 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15943300#comment-15943300
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Sylvain Lebresne commented on CASSANDRA-13274:
----------------------------------------------

+1, but make sure to update NEWS file for trunk with the actual version this is going to make
it in. Also, completely a nit, but for the changelog I'd probably rephrase to something like
"Fix code to not exchange schema across major versions" as that's more precise and avoid referencing
a version that doesn't exists yet.

> Fix rolling upgrade to 4.0+
> ---------------------------
>
>                 Key: CASSANDRA-13274
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13274
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Robert Stupp
>            Assignee: Robert Stupp
>            Priority: Critical
>             Fix For: 3.0.x, 3.11.x
>
>
> A rolling upgrade from 3.* to 4.0 (messaging version {{11}}) unveils a regression caused
by CASSANDRA-11128.
> Generally, we store all possible options/attributes including the default values in the
schema. This causes (expected) schema-version-mismatches during rolling upgrades and therefore
we prevent schema pulls/pushes in this situation, which has been broken by CASSANDRA-11128.



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