[jira] [Updated] (TS-974) TS should have a mode to hold partial objects in cache

["Bryan Call (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TS-974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bryan Call updated TS-974:
--------------------------
    Fix Version/s:     (was: 7.0.0)
                   7.1.0

> TS should have a mode to hold partial objects in cache
> ------------------------------------------------------
>
>                 Key: TS-974
>                 URL: https://issues.apache.org/jira/browse/TS-974
>             Project: Traffic Server
>          Issue Type: Improvement
>          Components: Cache
>    Affects Versions: 3.0.1
>            Reporter: William Bardwell
>            Assignee: Alan M. Carroll
>              Labels: A
>             Fix For: 7.1.0
>
>
> For ATS to do an excelent job caching large files like video it would need to be able to hold partial objects for a large file.  This could be done in a plugin or in the core.  This would need to be integrated with the Range handling code to serve requests out of the partial objects and to get more parts of a file to satisfy a Range request.
> An intermediate step (also do-able in the core or in a plugin) would be to have some settings to let the Range handling code be able to trigger a full file download either asynchronously when a Range response indicates that the file isn't larger than some threshold, or synchronously when a Range request could reasonably be answered quickly from a full request.  (Right now Range requests are tunneled if there is not full cached content as far as I can tell.)



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