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From Rich Bowen <>
Subject Re: [users@httpd] Rewritemap External Rewriting Program
Date Wed, 03 Sep 2014 13:37:12 GMT

On 08/19/2014 10:39 AM, Rose, John B wrote:
> Any experienced users of the external program "prg" mechanism  of 
> Rewritemap who use a compiled binary file as opposed to interpreted 
> language?
> Is there an appreciable performance difference on a high volume site, 
> even when the program is simple? Such as the * *example 
> on the Apache documentation page?
> Or if the script has a single line executing a "getent"

Using prg on a high-volume site is discouraged, as all requests will be 
fed through a single instance of the prg, creating a significant 
bottleneck. The example is just that - an example - and 
there are better ways to accomplish what it does ... as there are, 
usually, better ways to accomplish things that prg can be used for.

Consider mod_lua as an alternative way to do rewritemap-ish things

Rich Bowen - - @rbowen - @apachecon

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