Re: [squid-users] [Help] Reverse Proxy: suspend bulk requests for invalid urls

On 13/05/11 17:36, Le Trung Kien wrote:
> I have just added the hard Expires value, but still MISS
>
> squidclient -m HEAD http://invalid_URL
> HTTP/1.0 404 Not Found
> Cache-Control: public
> Content-Length: 1635
> Content-Type: text/html
> Expires: Sat, 14 May 2011 16:00:00 GMT
> Server: Microsoft-IIS/6.0
> X-Powered-By: ASP.NET
> Date: Fri, 13 May 2011 05:34:17 GMT
> X-Cache: MISS
>

Are you testing only with HEAD?
  NP: HEAD contains no body for caching and thus does not cause anything
to become a HIT. Use a GET request to test this.

Also check your refresh_pattern are not breaking the cache behaviour
this by ignoring/overriding cache-control and expires values.

Amos

> On Fri, May 13, 2011 at 11:57 AM, Amos Jeffries wrote:
>> On 13/05/11 16:34, Le Trung Kien wrote:
>>>
>>> I have just modified the HTTP header respond of IIS Servers
>>>
>>> squidclient -m HEAD http://invalid_URL
>>> HTTP/1.0 404 Not Found
>>> Cache-Control: public
>>> Content-Length: 1731
>>> Content-Type: text/html
>>> Expires: 1000
>>> Server: Microsoft-IIS/6.0
>>> X-Powered-By: ASP.NET
>>> Date: Fri, 13 May 2011 04:30:09 GMT
>>> X-Cache: MISS
>>>
>>> It still gets MISS :(
>>
>> Expires: is a timestamp (same format as Date: header) but in the future from
>> the value in Date. -1 means broken service discard immediately. All other
>> values and content is ignored.
>>
>> Amos
>> --
>> Please be using
>> Current Stable Squid 2.7.STABLE9 or 3.1.12
>> Beta testers wanted for 3.2.0.7 and 3.1.12.1
>>

-- 
Please be using
   Current Stable Squid 2.7.STABLE9 or 3.1.12
   Beta testers wanted for 3.2.0.7 and 3.1.12.1