TS should have a mode to hold partial objects in cache
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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
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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