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From "Jonathan Ellis (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3470) Add a second letter to Descriptor version
Date Tue, 08 Nov 2011 14:01:52 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146311#comment-13146311
] 

Jonathan Ellis commented on CASSANDRA-3470:
-------------------------------------------

Adding an extra "digit" here is hardly confusing, and pales next to the benefit of being able
to add forwards-compatible improvements to sstable metadata without breaking streaming (the
reason you need to scrub) between minor releases.
                
> Add a second letter to Descriptor version
> -----------------------------------------
>
>                 Key: CASSANDRA-3470
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3470
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 1.0.3
>
>
> Versions g and h are actually forwards-compatible with version f, and more changes like
that are easily forseeable (e.g., CASSANDRA-3407).
> It would be nice to have an extra version digit (h1, h2, ... ha, hb, ...). Otherwise
our choices are forcing people to scrub for these changes (unacceptable) or not updating the
Descriptor version, which is suboptimal since we don't know what the contents are until we
try to read it and find the latest parts missing.

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