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Thread: ARR V2 disk caching - is pre-stuffing possible?

Last post 06-20-2009 11:02 PM by wonyoo. 1 replies.

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  • 06-20-2009, 10:34 AM

    • dbukhan
    • Not Ranked
    • Joined on 06-20-2009, 2:25 PM
    • Posts 3

    ARR V2 disk caching - is pre-stuffing possible?

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    Hi,

    Is it possible to pre-stuff files into the disk cache of an edge proxy? We are dealing with large video files in a corporate environment and would like to avoid a cache miss for the first requst during peak hours. Files can be pre-positioned (copied to edge) during off-peak hours.

    And a very simple question - how can one determine if a request was a cache hit or miss? I can't find anything in the log.

    Thanks,

    David B

     

    David Bukhan
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  • 06-20-2009, 11:02 PM In reply to

    • wonyoo
    • Top 50 Contributor
    • Joined on 12-15-2007, 1:46 PM
    • Posts 125

    Re: ARR V2 disk caching - is pre-stuffing possible?

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    Hi David

    Since the ARRv2 Beta1 release in March, the team has been working on the next release milestone, ARRv2 Beta2.  I am not able to get into the specifics of the feature set and/or the schedule, but I will say that it will have a feature that will pre-cache contents.

    As for the cache-hit or miss - it depends on what you are looking for.  ARRv2 Beta1 has runtime statistics that will show you the overall performance of the cache hit/miss ratio.  If you are troubleshooting, then turning on request failing can be used to see if there is a cache hit or miss.  If you are trying to gather this information from the http.sys log for billing/accounting purposes, we don't log that info today.

    I am curious to understand your user scenario a bit better w/r/t to the cache hit/miss in the log.
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