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https://issues.apache.org/jira/browse/CASSANDRA-8928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15351164#comment-15351164
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Aleksey Yeschenko commented on CASSANDRA-8928:
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bq. The same end result can be achieved, although with maybe a bit more of
work, by backing up sstables of the upgraded node and wiping/recreating the
node in a previous version, and then use sstableloader of the newer version to
reload the data in the recreated node, which would be easily enabled by
CASSANDRA-8110.
sstableloader itself however is not backward or future compatible at the moment
(schema loading code isn't, for one). Not a big deal, but something we should
make work and add tests for. Otherwise I agree that CASSANDRA-8110 will do, at
least for now. We can close this JIRA now and reopen later, if necessary.
> Add downgradesstables
> ---------------------
>
> Key: CASSANDRA-8928
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8928
> Project: Cassandra
> Issue Type: New Feature
> Components: Tools
> Reporter: Jeremy Hanna
> Assignee: Kaide Mu
> Priority: Minor
> Labels: gsoc2016, mentor
>
> As mentioned in other places such as CASSANDRA-8047 and in the wild,
> sometimes you need to go back. A downgrade sstables utility would be nice
> for a lot of reasons and I don't know that supporting going back to the
> previous major version format would be too much code since we already support
> reading the previous version.
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