ngx_http_memcached_module question

[Igor Sysoev]

On Fri, Feb 29, 2008 at 03:19:35PM -0500, Sean Allen wrote:

> 
> On Feb 29, 2008, at 2:02 PM, Sean Allen wrote:
> 
> >
> >On Feb 29, 2008, at 1:25 PM, Sean Allen wrote:
> >
> >>
> >>On Feb 29, 2008, at 11:28 AM, Igor Sysoev wrote:
> >>
> >>>On Thu, Feb 28, 2008 at 05:09:18PM -0500, Sean Allen wrote:
> >>>
> >>>>can i do the following:
> >>>>
> >>>>check memcache for existence of content.
> >>>>
> >>>>if not continue our normal processing which is currently:
> >>>>
> >>>>check for static file
> >>>>if it exists, serve it
> >>>>if it doesnt exist, pass request off to upstream server.
> >>>
> >>>The checking local file is faster than memcached, so:
> >>>
> >>>  location / {
> >>>      error_page  404 = @memcache;
> >>>  }
> >>>
> >>>  location @memcache {
> >>>      set   $memcached_key   "$uri?$args";
> >>>      memcached_pass    ...
> >>>
> >>>      recursive_error_pages  on;
> >>>
> >>>      error_page  404 = @upstream;
> >>>  }
> >>>
> >>>  location @upstream {
> >>>      proxy_pass    ...
> >>>
> >>>      error_page  404 = @upstream;
> >>>  }
> >>
> 
> Sorry for the noise. Managed to work through a number of things myself  
> with some help from google and dumb luck.
> 
> Routing all POST requests away from the error_page  404 = @memcache;
> took care of the 405 issue.

ngx_http_memcached_module does not support POST now.
It seems there should be "memcached_post" like "static_post".
Or event allow POST to memcached by default.

> Questions I have left:
> 
> is there a way to hash the "$uri?$args" with something like md5 to  
> keep a really long arg string from
> going beyond the max memcache key size?

No.

> is there a way to selectively not log the file not found errors that  
> using error_page to redirect creates
> while at the same time preserving 'real' errors?

What error types do you want to hide ?

> Thanks for all the help you have already given on this Igor. I wouldnt  
> have come close to getting this
> near to done without your assistance.


-- 
Igor Sysoev
http://sysoev.ru/en/