POST timeouts with rails

[Igor Clark]

Sorry - forgot to say nginx 0.6.31


On 21 May 2008, at 14:39, Igor Clark wrote:

> Hi there
>
> Just trying a naïve configuration to get things started on a new  
> app, I'm having problems.
>
>> upstream dev_mongrels {	# all work fine, tested directly
>>    server  127.0.0.1:10000;
>>    server  127.0.0.1:10001;
>>    server  127.0.0.1:10002;
>>    server  127.0.0.1:10003;
>> }
>>
>> server {
>>
>>   [...]
>>
>>    location / {
>>        rewrite ^/$ /flash/index redirect;
>>        error_page  404 =   @mongrels;
>>    }
>>
>>    location @mongrels {
>>        proxy_pass  http://dev_mongrels;
>>    }
>> }
>
> GET /gateway works as expected:
>
>> 192.168.24.121 - - [21/May/2008:12:50:13 +0100] "GET /gateway HTTP/ 
>> 1.1" 200 421 "-" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_2;  
>> en-us) AppleWebKit/525.18 (KHTML, like Gecko) Version/3.1.1 Safari/ 
>> 525.18" "-"
>
> POST /gateway fails
>
>> 2008/05/21 12:51:00 [error] 2060#0: *11 upstream timed out (110:  
>> Connection timed out) while reading response header from upstream,  
>> client: 192.168.24.121, server: dev.server.name, request: "POST / 
>> gateway HTTP/1.1", upstream: "http://127.0.0.1:10000/gateway",  
>> host: "dev.server.name", referrer: "http://dev.server.name/flash/main.swf 
>> "
>
> Debug log:
>
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 http cleanup add: 09D38178
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 get rr peer, try: 4
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 get rr peer, current: 2 1
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 socket 13
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 epoll add connection: fd:13  
>> ev:80000005
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 connect to 127.0.0.1:10002,  
>> fd:13 #29
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 http upstream connect: -2
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 event timer add: 13:  
>> 60000:196138193
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 post event 09D77EF0
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 post event 09D77EBC
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 delete posted event 09D77EBC
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 http upstream check client,  
>> write event:1, "/gateway"
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 http upstream recv(): -1  
>> (11: Resource temporarily unavailable)
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 delete posted event 09D77EF0
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 http upstream send request  
>> handler
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 http upstream send request
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 chain writer buf fl:1 s:550
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 chain writer in: 09D38194
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 writev: 550
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 chain writer out: 00000000
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 event timer del: 13:  
>> 196138193
>> 2008/05/21 14:34:15 [debug] 8811#0: *28 event timer add: 13:  
>> 60000:196138194
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 event timer del: 11:  
>> 196080177
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 http keepalive handler
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 close http connection: 11
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 free: 09D3AF38
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 free: 00000000
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 free: 00000000
>> 2008/05/21 14:34:17 [debug] 8811#0: *27 free: 09D31690, unused: 56
>
> POST /gateway directly to 127.0.0.1:1000(0|1|2|3) works as expected,  
> does not time out, does not have connection issues.
>
> Linux 2.6.18-53.1.19.el5PAE
> Configuration:
>
>> ./configure
>> --prefix=/poke/software/install/nginx-0.6.31
>> --conf-path=/poke/software/install/nginx-0.6.31/conf/nginx.conf
>> --with-http_stub_status_module
>> --with-http_flv_module
>> --with-pcre=../pcre-7.7
>> --with-debug
>> --user=nginx
>
> Same result with and without debug.
>
> Does anyone here use named locations for POSTing anything?
>
> I really want to use it because it seems like such a significantly  
> more elegant mannerism but I just can't get it going with POSTs,  
> neither with various PHP apps in the past, nor now with Rails.
>
> Any ideas would be very welcome.
>
> Cheers
> Igor
>
> --
> Igor Clark • POKE • 10 Redchurch Street • E2 7DD • +44 (0)20 7749  
> 5355 • www.pokelondon.com
>
>
>
>

--
Igor Clark • POKE • 10 Redchurch Street • E2 7DD • +44 (0)20 7749 5355  
• www.pokelondon.com