open socket #84 left in connection

[shahzaib shahzaib]

Hi,

  We're using nginx to upload and serve videos files around 1GB of file
size via http. We've been receiving complains from some customers that
uploading has some issue and sometimes user are unable to upload videos
successfully. Server is installed with Nginx-1.4.7+php-fpm, ffmpeg, MP4Box.
On checking the nginx logs, we didn't got anything but Following messages :

2015/04/16 16:49:53 [alert] 15077#0: open socket #81 left in connection 49
2015/04/16 16:49:53 [alert] 15084#0: open socket #48 left in connection 19
2015/04/16 16:49:53 [alert] 15077#0: open socket #84 left in connection 51
2015/04/16 16:49:53 [alert] 15084#0: open socket #52 left in connection 21
2015/04/16 16:49:53 [alert] 15077#0: open socket #87 left in connection 53
2015/04/16 16:49:53 [alert] 15079#0: open socket #81 left in connection 46
2015/04/16 16:49:53 [alert] 15084#0: open socket #53 left in connection 22

Here is the nginx.conf

user  nginx;
worker_processes  16;
worker_rlimit_nofile 300000; #2 filehandlers for each connection
error_log /usr/local/nginx/logs/error.log crit;
#access_log logs/access.log;
#pid        logs/nginx.pid;


events {
    worker_connections  6000;
    use epoll;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    client_max_body_size 3000M;
    client_body_buffer_size 2000M;
    sendfile_max_chunk 128k;
    client_header_buffer_size 256k;
    large_client_header_buffers 4 256k;
    output_buffers 1 512k;
    server_tokens off; #Conceals nginx version
   access_log  /usr/local/nginx/logs/access.log ;
   access_log off;
    sendfile        off;
       ignore_invalid_headers on;
    client_header_timeout  60m;
    client_body_timeout 60m;
    send_timeout     60m;
    reset_timedout_connection on;

        keepalive_timeout 15;
        include "/usr/local/nginx/conf/vhosts/*.conf";
    error_page 404 = /thumb.php;
    error_page   403 /forbidden.html;
}

If anyone can help me with this ?

Regards.
Shahzaib
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