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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-389) SSTable Versioning
Date Fri, 19 Feb 2010 05:13:36 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835591#action_12835591
] 

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

Regarding 0008: perhaps rather than having the magical streaming directory, we should just
leave files that are being streamed in 'temporary' status, and kill the subdirectory?

> SSTable Versioning
> ------------------
>
>                 Key: CASSANDRA-389
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-389
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Chris Goffinet
>            Assignee: Stu Hood
>            Priority: Minor
>             Fix For: 0.7
>
>         Attachments: 0001-Rebase-389-v4-for-trunk.patch, 0002-Add-keyspace-name-to-SSTable.Descriptor.patch,
0003-Use-SSTable.Descriptor-for-Streaming.patch, 0004-Validate-params.patch, 0005-The-special-casing-begins.patch,
0006-Merge-oopses.patch, 0007-Don-t-serialize-Descriptors-as-filenames.patch, 0008-adjust-Descriptor-for-stream-paths.patch,
389-v3.patch
>
>
> 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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