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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-389) SSTable Versioning
Date Thu, 27 Aug 2009 22:45:59 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748604#action_12748604
] 

Stu Hood commented on CASSANDRA-389:
------------------------------------

This is almost finished, but I bumped into a bunch of code related to bootstrapping in db.Table.java
that assumes a ton about filenames, that I don't have time to fix today. Hopefully I can get
this wrapped up tomorrow.

> SSTable Versioning
> ------------------
>
>                 Key: CASSANDRA-389
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-389
>             Project: Cassandra
>          Issue Type: Improvement
>    Affects Versions: 0.4
>            Reporter: Chris Goffinet
>            Assignee: Stu Hood
>            Priority: Minor
>             Fix For: 0.4
>
>         Attachments: 389-v3.patch, CASSANDRA-389.diff, CASSANDRA-389.diff
>
>
> As we continue to make changes to the on-disk format of SSTables, I propose we start
versioning. The easiest way without breaking backwards compatibility is to store the version
in the filename. This would allow us to figure out the version without looking at the SSTable
data. After speaking to Jonathan here is the proposed example:
> <CF>-<ID>-<VERSION>-<DATA|INDEX|FILTER>

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