Redmine 2.3, ruby 2.0.0, nginx 1.4.1 with passenger 4.0.2 all HTTP POSTs fail

Question

I'm new to nginx and am attempting to run Redmine 2.3 using ruby 2.0.0, phusion passenger 4.0.2 and nginx 1.4.1. This is compiled from the passenger-install-nginx script on an ARMv5te system in Arch Linux ARM.

I am getting the following in the nginx log: (Note: I've removed the server name from the logs/configs)

2013/05/08 23:41:12 [notice] 1359#0: signal process started
[ 2013-05-08 23:41:13.1325 1367/b6f9a000 agents/HelperAgent/Main.cpp:554 ]: PassengerHelperAgent online, listening at unix:/tmp/passenger.1.0.1363/generation-0/request.socket
[ 2013-05-08 23:41:13.2641 1387/b6f26000 agents/HelperAgent/Main.cpp:554 ]: PassengerHelperAgent online, listening at unix:/tmp/passenger.1.0.1381/generation-0/request.socket
[ 2013-05-08 23:41:13.3028 1392/b6faa000 agents/LoggingAgent/Main.cpp:272 ]: PassengerLoggingAgent online, listening at unix:/tmp/passenger.1.0.1381/generation-0/logging.socket
[ 2013-05-08 23:41:15.9700 1387/b59ff450 Pool2/Spawner.h:739 ]: [App 1408 stdout] 
[ 2013-05-08 23:41:43.5820 1387/b6b4a450 Pool2/Spawner.h:159 ]: [App 1408 stderr] /var/www/sites/public-redmine-2.3/lib/SVG/Graph/Graph.rb:3: warning: class variable access from 
toplevel
[ 2013-05-08 23:41:55.8491 1387/b59ff450 Pool2/Spawner.h:739 ]: [App 1439 stdout] 
[ 2013-05-08 23:44:15.2842 1387/b57ff450 agents/HelperAgent/RequestHandler.h:581 ]: [Client 20] Disconnecting with error: invalid SCGI header
2013/05/08 23:44:15 [error] 1402#0: *3 upstream prematurely closed connection while reading response header from upstream, client: 192.168.4.254, server: (removed), request: "POST /login HTTP/1.1", upstream: "passenger:/tmp/passenger.1.0.1381/generation-0/request.socket:", host: "(removed)", referrer: "http://(removed)/login"

The last error occurs consistently whenever I do an HTTP POST on any page in redmine. HTTP GET requests work fine with pages rendered.

nginx.conf

worker_processes  2;

events {
    worker_connections  1024;
}


http {
    passenger_root /usr/lib/ruby/gems/2.0.0/gems/passenger-4.0.2;
    passenger_ruby /usr/bin/ruby;

    passenger_max_pool_size  2;
    passenger_pool_idle_time 120;
    passenger_pre_start http://(removed)/;
    passenger_spawn_method smart;


    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;

    keepalive_timeout  65;
    server {
        listen       80;
        server_name  localhost;

        location / {
            root   html;
            index  index.html index.htm;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }    
    }

    include sites-enabled/*.conf;
}

sites-enabled/redmine.conf

server {
    listen *:80;
    server_name (removed);

    passenger_enabled on;
    rails_env production;

    passenger_spawn_method conservative;

    root /var/www/sites/kamikaze-kb/public;

    location /plugin_assets/ {
        root /var/www/sites/kamikaze-kb/public/plugin_assets/;
    }
}

One thing that may be relevant - I can run redmine fine if I use the built in ruby webrick server, so I'm guessing this is likely to be an nginx/passenger problem. Has anyone got any idea what the issue is?

Answer 1

Had the same problem. Passenger says:

[Client 20] New client accepted; new client count = 1
[Client 20] Disconnecting with error: invalid SCGI header
[Client 20] Disconnected; new client count = 0

But a friend of mine with the same system (raspberry pi) has no problem. Comparing installed packages, we found out that the only discrepancy was version of Passenger.

4.0.10 vs 3.0.19.

sudo gem remove passenger -v "=4.0.10"
sudo gem install passenger -v "=3.0.19"
sudo passenger-install-nginx-module

After downgrade of gem and rebuilding nginx with passenger - the problem solved. POST requests do not fall off and work normally.

Answer 2

In Apache you have to set ruby and passengee configs like described in this article http://www.redmine.org/projects/redmine/wiki/HowTo_Install_Redmine_on_Debian_with_Ruby-on-Rails_and_Apache2-Passenger

If you don't you get server errors on post. I could imagine you have to set something similar in your nginx

Answer 3

Looks like this problem is tied to arm platform.

I got the same problem on arm, but same code and configuration works fine on x86.

Answer 4

Probably a bug in Passenger ContentHandler.c, performing a "%ui" conversion on an off_t value. In short, find the line

b->last = ngx_snprintf(b->last, 10, "%ui", r->headers_in.content_length_n);

in ContentHandler.c and replace it with

b->last = ngx_snprintf(b->last, 10, "%O", r->headers_in.content_length_n);

More details here:

https://github.com/phusion/passenger/issues/1151

Answer 5

these days there is no

gem remove

just install 3 0 19

and check version after

passenger --version

ok - it looks like we must remove v 4

gem uninstall ....

pas --ver

now is v 3