Re: [squid-users] TCP_MISS/500

Hi,

I'm having the exact same problem. I tried disabling the window size, but it
didn't change anything.

My log files are full of entries like these: (I also got sucessfull replies)

1249567984.678 1 192.168.0.5 TCP_MISS/500 2542 GET
http://www.michaelsweblog.de/2009/07/26/vor-400-jahren-die-erste-mondkarte/
- NONE/- text/html
1249567984.753 1 192.168.0.3 TCP_MISS/500 2527 GET
http://www.n-tv.de/ratgeber/Aeltere-wollen-nicht-mehr-article448737.html -
NONE/- text/html
1249567984.756 1 192.168.0.4 TCP_MISS/500 2501 GET
http://www.sixapart.com/blog/2009/01/gothamist-up-to-date.html - NONE/-
text/html
1249567984.826 1 192.168.0.9 TCP_MISS/500 2508 GET
http://www.sozioproktologe.de/blog/welt/neulich_in_der_bibel.html - NONE/-
text/html

Interestingly I can request these pages without any error from other proxy
servers in the same network (they all have the same config), allthough those
proxy servers have their own set of urls they can't seem to fetch!

Thanks,
Thibaut

Ilo Lorusso wrote:
>
> Hi,
> under my /proc/sys/net/ipv4 directory, I only have the two two following
> files
> that mentiion win scale
> tcp_adv_win_scale
> tcp_window_scaling
>
> I set tcp_window_scaling & tcp_adv_win_scale to 0 but I still get the
> same results when trying to browse this page.
>
> What else could it be?
>
>
> On Thu, Jul 2, 2009 at 11:05 PM, Chris Robertson<crobertson_at_gci.net>
> wrote:
>> Ilo Lorusso wrote:
>>>
>>> Hi,
>>>
>>> when I try access the following website http://www.flysaaspecials.com/
>>> I get a  "500 Internal Server Error" from the browser
>>> and the below logs from squid. yet when I try this without going
>>> though my squid proxy it works and the proxy and my workstation go
>>> though the same firewall.
>>>
>>> 1246540647.587      822 172.20.128.100 TCP_MISS/500 565 GET
>>> http://www.flysaaspecials.com/ - DIRECT/8.12.42.47 text/html
>>> 1246540670.294      0 172.20.128.100 TCP_NEGATIVE_HIT/500 573 GET
>>> http://www.flysaaspecials.com/ - NONE/- text/html
>>> 1246540675.024      1 172.20.128.100 TCP_NEGATIVE_HIT/500 573 GET
>>> http://www.flysaaspecials.com/ - NONE/- text/html
>>>
>>>
>>> what debugging section can I enable to get a clearer picture on what
>>> is going on?
>>>
>>
>> Likely related to
>> http://wiki.squid-cache.org/KnowledgeBase/BrokenWindowSize
>>
>>> I have tried deleting the cache for that specific url
>>> http://www.flysaaspecials.com/  and Ive told squid not to cache this
>>> domain
>>> using the always_direct statment
>>
>> That doesn't do what you seem to think it does...
>>
>> http://www.squid-cache.org/Doc/config/always_direct/
>>
>> See...
>>
>> http://www.squid-cache.org/Doc/config/cache/
>>
>> ...instead for controlling caching.
>>
>>>  with out anyluck..
>>>
>>> any ideas?
>>>
>>
>> The problem has nothing to do with whether the objects are cached or not,
>> but instead the communication between the Squid server and the origin web
>> server.
>>
>>> Thanks
>>>
>>> Regards
>>>
>>
>> Chris
>>
>>
>
>

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