# Debugging another issue

**URL:** <https://www.ruby-forum.com/t/debugging-another-issue/198367>\
**Category:** NGINX\
**Created:** [October 30, 2010, 3:24pm UTC](https://www.ruby-forum.com/t/debugging-another-issue/198367 "2010-10-30T15:24:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/77aa72/32.png) [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\
**Post date:** [October 30, 2010, 3:24pm UTC](https://www.ruby-forum.com/t/debugging-another-issue/198367/1 "2010-10-30T15:24:36Z")

</div>

Im receiveing lots of messages like “error] 32211#0: \*1650258 upstream  
sent  
no valid HTTP/1.0 header while reading response header from upstream,  
client: 178.66.174.159, server: , request: “POST /\_serv/chat/read  
HTTP/1.1”,  
upstream: “[http://212.117.183.43:80/\_serv/chat/read](http://212.117.183.43:80/_serv/chat/read)”, host: "  
[thewarezscene.org](http://thewarezscene.org)”, referrer: “[thewarezscene.org](http://thewarezscene.org/chat/)”"

Its getting on my nerves because I can never reproduce it. This error  
only  
appears on the Nginx(2) node and not Nginx(1) Node. The setup is as  
follows

Nginx(2)[NL Datacenter] → Nginx(1)[Offsite] → Mono[Same location as  
Nginx(1)]

Any ideas, a timeout or connection error?

---

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [November 1, 2010, 3:33am UTC](https://www.ruby-forum.com/t/debugging-another-issue/198367/2 "2010-11-01T03:33:04Z")

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Another snippet of info, here is the raw response returned to the client

HTTP/1.0 200 OK  
Server: [TWS.NET/1.1](http://TWS.NET/1.1)  
Date: Mon, 01 Nov 2010 03:27:26 GMT