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From "Davide Giannella (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-7374) Investigate changing the UUID generation algorithm / format to reduce index size, improve speed
Date Tue, 04 Jun 2019 15:34:08 GMT

     [ https://issues.apache.org/jira/browse/OAK-7374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davide Giannella updated OAK-7374:
----------------------------------
    Fix Version/s: 1.16.0

> Investigate changing the UUID generation algorithm / format to reduce index size, improve
speed
> -----------------------------------------------------------------------------------------------
>
>                 Key: OAK-7374
>                 URL: https://issues.apache.org/jira/browse/OAK-7374
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: core
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>            Priority: Major
>             Fix For: 1.14.0, 1.16.0
>
>
> UUIDs are currently randomly generated, which is bad for indexing; specially read and
writes access, due to low locality.
> If we could add a time component, I think the index churn (amount of writes) would shrink,
and lookup would be faster.
> It should be fairly easy to verify if that's really true (create a proof-of-concept,
and measure).



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