mod_aclr2

[Jimmysongo]

use ramdisk，tmpfs



在 2012-1-12，2:09，Andrey Belov <defan at nginx.com> 写道：

> Martin,
> 
> On Jan 11, 2012, at 7:31 PM, Martin Loy wrote:
> 
>> Would you explain the main difference between using your module and using nginx as a reverse proxy and caching static content ?
> 
> In some situations, mod_aclr2 helps to avoid excessive disk I/O,
> especially for big static responses.
> 
> When nginx is used as a local reverse proxy and proxy_buffering is
> enabled, every upstream reponse which can not fit into proxy buffers
> may be temporarily saved on disk:
> 
> http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_buffering
> http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_temp_path
> 
> For example, we have to process the request for 700mb video file,
> without mod_aclr2:
> 
> 1) nginx sends the request to apache
> 2) apache sends 700mb file back to nginx
> 3) nginx saves received file on disk (proxy_temp_path) and
> starts sending it back to the client
> 
> and with mod_aclr2:
> 
> 1) nginx sends the request to apache
> 2) apache sends a few bytes header with X-Accel-Redirect back to nginx
> 3) nginx starts sending the file directly from disk
> 
> You save your time and your disk at step #2.
> 
> Of course, you also may use proxy_cache along with mod_aclr2,
> but if your disks are fast enough, probably you won't need
> to do any caching at all.
> 
> Hope this helps.
> 
> 
>> 
>> Regards
>> 
>> M
>> 
>> On Wed, Jan 11, 2012 at 11:54 AM, António P. P. Almeida <appa at perusio.net> wrote:
>> On 11 Jan 2012 13h17 WET, defan at nginx.com wrote:
>> 
>> > Hello!
>> >
>> > Ever wondered how to set up NGINX as a local proxy for Apache 2.x
>> > with minimum efforts?
>> 
>> Nice work Andrey. Opens up Nginx as a possibility for shared hosting
>> (keep using .htaccess) and voids any resistance people might have trying
>> Nginx out. It's sooo easy now :)
>> 
>> Thanks,
>> --- appa
>> 
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>> 
>> 
>> -- 
>> Nunca hubo un amigo que hiciese un favor a un enano, ni un enemigo que le hiciese un mal, que no se viese recompensado por entero.
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