503 returning FetchError c http first read error: -1 0

João Gabriel joao.lisanti at locaweb.com.br
Wed Feb 23 03:54:14 CET 2011


The reason that was generating the error to us was the mod_remoteip, if using
Apache, try disabling the modules and test.

João Gabriel
CT-Linux




On Feb 22, 2011, at 6:05 PM, João Gabriel wrote:

> Probably the backend is closing  connection, I'm having the same problem here, for some reason the backend is  
> closing. I'm looking for the reason
> 
> João Gabriel
> CT-Linux
> 
> 
> 
> 
> On Feb 17, 2011, at 9:19 PM, Poul-Henning Kamp wrote:
> 
>> In message <AANLkTi=Tqzz1_SykDAmgtmzFN_SUKxdYcTC6c=XwRdhH at mail.gmail.com>, Adam
>> McManus writes:
>> 
>>>> To me this looks like your backend does not answer inside the
>>>> "first_byte" timeout.
>>> 
>>> That's what I initially thought, but the 503 is being generated within
>>> 1-2 seconds max of initiating the request, not the 30 seconds being
>>> defined in each backend. Am I misunderstanding the first_byte timeout
>>> setting?
>> 
>> Probably not.
>> 
>> Are you 100% sure your backend is not closing the connection ?
>> 
>> Use tcpdump or similar to find out...
>> 
>> -- 
>> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
>> phk at FreeBSD.ORG         | TCP/IP since RFC 956
>> FreeBSD committer       | BSD since 4.3-tahoe    
>> Never attribute to malice what can adequately be explained by incompetence.
>> 
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> 
> 
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