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From "Howard M. Lewis Ship (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (TAP5-2318) Module responses uses paranoid max-age: 0, should be more liberal in production
Date Mon, 23 Jun 2014 15:47:24 GMT

     [ https://issues.apache.org/jira/browse/TAP5-2318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Howard M. Lewis Ship reassigned TAP5-2318:
------------------------------------------

    Assignee: Howard M. Lewis Ship

> Module responses uses paranoid max-age: 0, should be more liberal in production
> -------------------------------------------------------------------------------
>
>                 Key: TAP5-2318
>                 URL: https://issues.apache.org/jira/browse/TAP5-2318
>             Project: Tapestry 5
>          Issue Type: Improvement
>          Components: tapestry-core
>    Affects Versions: 5.4
>            Reporter: Howard M. Lewis Ship
>            Assignee: Howard M. Lewis Ship
>              Labels: cache
>
> Since module requests can-not contain a content checksum in the URL, they must be validated
by the client frequently.
> In development, a max-age of 0 makes sense; there is no cost to checking the module's
current status (modules include E-Tag headers) and a stiff cost to having the wrong code running
in the browser during development.
> In production, the max-age of 0 causes a significant load on the origin server as even
intermediate caches must pass a constant stream of requests through to the origin server for
validation ... even for a user navigating from page to page within the application (rather
than returning to the application hours or days later).
> Having max-age (and the other values) be configurable in production would be ideal; a
max-age of several minutes to an hour would likely result in virtually no client-side failures.



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