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From "Kaide Mu (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-8928) Add downgradesstables
Date Wed, 23 Mar 2016 10:07:25 GMT


Kaide Mu commented on CASSANDRA-8928:

Hi, [~pauloricardomg] and [~yukim]. 
Sorry I couldn't reply earlier because I have been with exams during these weeks and thanks
for reviewing the proposal. I agree that it's better to have first a basic sstabledowngrader
than jumping directly to the framework, thus I have modified it according to your suggestions.
I'll make another change if it's needed.
Till now I have been looking for inspection tools, I guess I don't have any problems related
with the usage. I'll keep on looking for sstablescrubber tool.
In addition, do you mean with double cycle support that our sstabledowngrader should work
correctly with a flow like "ma" -> "ka" -> "la"?

> Add downgradesstables
> ---------------------
>                 Key: CASSANDRA-8928
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Tools
>            Reporter: Jeremy Hanna
>            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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