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https://issues.apache.org/jira/browse/CASSANDRA-674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stu Hood updated CASSANDRA-674:
-------------------------------
Attachment: 674-v2.tgz
Attaching a snapshot of the work on this new design for the file format. There
are a few important blockers not implemented, as evidenced by failing tests,
but I feel confident that serialization and format themselves are solid.
Please carefully note the caveats listed under {{v2}} on the design doc:
http://wiki.apache.org/cassandra/FileFormatDesignDoc#v2 In particular, we will
barely see the benefits of compression with this implementation, because only
Spans are storing at most 1 row. Storing more than one row in a span will
require an index change, and I'd feel much better doing it once this is in
trunk.
> New SSTable Format
> ------------------
>
> Key: CASSANDRA-674
> URL: https://issues.apache.org/jira/browse/CASSANDRA-674
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Stu Hood
> Fix For: 0.8
>
> Attachments: 674-v1.diff, 674-v2.tgz, perf-674-v1.txt,
> perf-trunk-2f3d2c0e4845faf62e33c191d152cb1b3fa62806.txt
>
>
> Various tickets exist due to limitations in the SSTable file format,
> including #16, #47 and #328. Attached is a proposed design/implementation of
> a new file format for SSTables that addresses a few of these limitations.
> This v2 implementation is not ready for serious use: see comments for
> remaining issues. It is roughly the format described here:
> http://wiki.apache.org/cassandra/FileFormatDesignDoc
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