[Cppcms-users] pending request

[Василий Т. <par...@gm...>]

Hello everybody.
I've got strange behaviour of cppcms (or nginx?).
The browser sets pending state for ajax request to cppcms fastcgi app with
caution "Provisional headers are shown".
*Exactly* 1 min later the response come back *successfully*. This is about
both firefox and google chrome. And both waits for exactly 1 minute.
Nginx log fills with such kind of messages:
2015/03/14 16:40:09 [error] 3824#0: *200 upstream timed out (110:
Connection timed out) while connecting to upstream, client: 192.168.88.10,
server: my.server, request: "POST /ajax/user_corner HTTP/1.1", upstream:
"fastcgi://[::1]:5555", host: "my.server", referrer: "http://my.server/".

nginx conf
    location ~ /ajax/.+ {
        fastcgi_pass  localhost:5555;
        fastcgi_pass_header "X-Accel-Redirect";
        add_header Cache-Control "max-age=0, no-cache, no-store";
        fastcgi_split_path_info          ^(.*/ajax)(.+)$;
        fastcgi_param   PATH_INFO
 $fastcgi_script_name$fastcgi_path_info;
        include fastcgi_params;
    }

cppcms app conf
...
    "session" : {
        "expire" : "renew",
        "timeout" : 604800,
        "location" : "client",
        "client" : {
            "hmac" : "sha1",
            "hmac_key" : "my key"
        },
        "cookies" : {
            "prefix" : "mantra"
        }
    },
    "service" : {
        "api" : "fastcgi",
        "port" : 5555,
        "ip" : "127.0.0.1",
        "worker_processes" : 0
    },
    "daemon" : {
        "enable" : false,
        "lock" : "/home/me/test.lock",
        "user" : "nginx",
        "group" : "nginx"
    },
    "cache" : {
        "backend" : "thread_shared",
        "limit" : 128
    },
...
Cppcms console is lack of errors. The app is the simplest synchronous one.
It looks like cppcms does not respond to request.
1 more moment: if i refresh the page in series (forcing ajax call), 1 pass
is successfull, another one is not.
Some part (which one?) of chain creates pause for 1 min
=> everybody waits for it to finish while cppcms app already done
=> another call (on refresh) is OK.
Digging into google does not help :(
Please, someone..