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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Reopened] (OAK-4844) Analyse effects of simplified record ids
Date Tue, 04 Oct 2016 12:14:20 GMT

     [ https://issues.apache.org/jira/browse/OAK-4844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Dürig reopened OAK-4844:
--------------------------------
      Assignee: Michael Dürig  (was: Francesco Mari)

Reopening to see whether we can squeeze out a few more bytes from the record id. 

> Analyse effects of simplified record ids
> ----------------------------------------
>
>                 Key: OAK-4844
>                 URL: https://issues.apache.org/jira/browse/OAK-4844
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segment-tar
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: performance
>             Fix For: Segment Tar 0.0.14
>
>         Attachments: OAK-4844-02.patch, OAK-4844.patch
>
>
> OAK-4631 introduced a simplified serialisation for record ids. This causes their footprint
on disk to increase from 3 bytes to 18 bytes. OAK-4631 has some initial analysis on the effect
this is having on repositories as a whole. 
> I'm opening this issue as a dedicated task to further look into mitigation strategies
(if necessary). 



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