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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2017/07/03 08:55:00 UTC

[jira] [Updated] (OAK-5860) Compressed segments

     [ https://issues.apache.org/jira/browse/OAK-5860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Dürig updated OAK-5860:
-------------------------------
    Fix Version/s:     (was: 1.7.4)
                   1.7.6

> Compressed segments
> -------------------
>
>                 Key: OAK-5860
>                 URL: https://issues.apache.org/jira/browse/OAK-5860
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: segment-tar
>            Reporter: Michael Dürig
>              Labels: scalability
>             Fix For: 1.7.6
>
>
> It would be interesting to see the effect of compressing the segments within the tar files with a sufficiently effective and performant compression algorithm:
> * Can we increase overall throughput by trading CPU for IO?
> * Can we scale to bigger repositories (in number of nodes) by squeezing in more segments per MB and thus pushing out onset of thrashing?
> * What would be a good compression algorithm/library?
> * Can/should we make this optional? 
> * Migration and compatibility issues?



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