nginx + php-fpm fehler: upstream timed out

T

TAiS46

Registered User
Hallo,

ich habe bei mir php, php-fpm, php-fastcgi und nginx installiert.

Aufbau:
Server 2 - File Server
Server 1 - Datenbankserver

Mein Problem ist das ich, wenn der Server 2 stark in gebraucht ist Fehler bekomme.
Dem Benutzer wird eine Datei gesendet und nachdem der Download
komplett ist wird ein Eintrag in die Datenbank (Server 1) gemacht.
In den nginx Logs erscheint oft ein Fehler wie:

Code: 
2008/11/15 13:22:10 [error] 8102#0: *2210 upstream timed out (110: Connection timed out) while reading response header from upstream,
client: **.9.200.174,
server: localhost,
request: "POST /download/1105900/1226751400/025a4935723ebb8637da5eda7476651f HTTP/1.1",
upstream: "fastcgi://127.0.0.1:9000",
host: "***.de:81",
referrer: "http://***/1105900/file.rar"

php-fpm log:
Code: 
Nov 15 20:18:57.349078 [NOTICE] fpm_pctl_kill_all(), line 181: 5 children are still alive
Nov 15 20:18:57.349097 [NOTICE] fpm_got_signal(), line 48: received SIGCHLD
Nov 15 20:18:57.349268 [WARNING] fpm_children_bury(), line 215: child 4888 (pool default) exited on signal 15 SIGTERM after 394.237835 seconds from start
Nov 15 20:18:57.349324 [WARNING] fpm_children_bury(), line 215: child 4889 (pool default) exited on signal 15 SIGTERM after 394.236263 seconds from start
Nov 15 20:18:57.349358 [WARNING] fpm_children_bury(), line 215: child 4890 (pool default) exited on signal 15 SIGTERM after 394.235100 seconds from start
Nov 15 20:18:57.349391 [WARNING] fpm_children_bury(), line 215: child 4891 (pool default) exited on signal 15 SIGTERM after 394.234029 seconds from start
Nov 15 20:18:57.349458 [WARNING] fpm_children_bury(), line 215: child 4886 (pool default) exited on signal 15 SIGTERM after 394.239003 seconds from start
Nov 15 20:18:57.349479 [NOTICE] fpm_pctl_exit(), line 81: exiting, bye-bye!
Nov 15 20:19:00.290744 [NOTICE] fpm_unix_init_main(), line 284: getrlimit(nofile): max:1024, cur:1024
Nov 15 20:19:00.291024 [NOTICE] fpm_event_init_main(), line 88: libevent: using epoll
Nov 15 20:19:00.291099 [NOTICE] fpm_init(), line 52: fpm is running, pid 5203
Nov 15 20:19:00.293560 [NOTICE] fpm_children_make(), line 352: child 5204 (pool default) started
Nov 15 20:19:00.294611 [NOTICE] fpm_children_make(), line 352: child 5206 (pool default) started
Nov 15 20:19:00.295428 [NOTICE] fpm_children_make(), line 352: child 5207 (pool default) started
Nov 15 20:19:00.296776 [NOTICE] fpm_children_make(), line 352: child 5208 (pool default) started
Nov 15 20:19:00.297865 [NOTICE] fpm_children_make(), line 352: child 5209 (pool default) started
Nov 15 20:19:00.297915 [NOTICE] fpm_event_loop(), line 105: libevent: entering main loop

Wo kann der Fehler liegen?

nginx.conf
Code: 
user root;
worker_processes  3;

error_log  /var/log/nginx/error.log;
pid        /var/run/nginx.pid;

events {
    worker_connections  2048;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    access_log  /var/log/nginx/access.log;

    sendfile        on;
    tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;
    tcp_nodelay        on;

    limit_zone   dlconn  $binary_remote_addr  10m;

    server {
        listen       81;
        server_name  localhost;

        access_log  /var/log/nginx/localhost.access.log;

        limit_conn dlconn 1;

        location / {
            root   /var/www/dataup.de;
            index  index.html index.htm;
            rewrite ^/download/([0-9]+)/([0-9]+)/(.+)$ ./download_it.inc.php?file=$1&time=$2&md5=$3;
            set $file_id $1;
            fastcgi_param  REQUEST_METHOD     $request_method;
        }

        location /files/ {
            internal;
            alias /home/files/;
            post_action /download-stop;
        }

        location /download-stop {
            fastcgi_pass 127.0.0.1:9000;
            fastcgi_param SCRIPT_FILENAME /var/www/***.de/download_it_end.inc.php;
            fastcgi_param QUERY_STRING     file_id=$file_id;
            fastcgi_param   REMOTE_ADDR     $remote_addr;
        }

        location /nginx_status {
            stub_status on;
            access_log off;
        }

        location ~ \.php$ {
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME /var/www/***.de/$fastcgi_script_name;
            include        /etc/nginx/fastcgi_params;
        }
}

php-fpm.conf
Code: 
<?xml version="1.0" ?>
<configuration>

        All relative paths in this config are relative to php's install prefix

        <section name="global_options">

                Pid file
                <value name="pid_file">/usr/local/logs/php-fpm.pid</value>

                Error log file
                <value name="error_log">/usr/local/logs/php-fpm.log</value>

                Log level
                <value name="log_level">notice</value>

                When this amount of php processes exited with SIGSEGV or SIGBUS ...
                <value name="emergency_restart_threshold">10</value>

                ... in a less than this interval of time, a graceful restart will be initiated.
                Useful to work around accidental curruptions in accelerator's shared memory.
                <value name="emergency_restart_interval">1m</value>

                Time limit on waiting child's reaction on signals from master
                <value name="process_control_timeout">5s</value>

                Set to 'no' to debug fpm
                <value name="daemonize">yes</value>

        </section>

        <workers>

                <section name="pool">

                        Name of pool. Used in logs and stats.
                        <value name="name">default</value>

                        Address to accept fastcgi requests on.
                        Valid syntax is 'ip.ad.re.ss:port' or just 'port' or '/path/to/unix/socket'
                        <value name="listen_address">127.0.0.1:9000</value>

                        <value name="listen_options">

                                Set listen(2) backlog
                                <value name="backlog">-1</value>

                                Set permissions for unix socket, if one used.
                                In Linux read/write permissions must be set in order to allow connections from web server.
                                Many BSD-derrived systems allow connections regardless of permissions.
                                <value name="owner"></value>
                                <value name="group"></value>
                                <value name="mode">0666</value>
                        </value>

                        Additional php.ini defines, specific to this pool of workers.
                        <value name="php_defines">
                <!--            <value name="sendmail_path">/usr/sbin/sendmail -t -i</value>            -->
                <!--            <value name="display_errors">0</value>                                                          -->
                        </value>

                        Unix user of processes
                        <value name="user">nobody</value>

                        Unix group of processes
                        <value name="group">nogroup</value>

                        Process manager settings
                        <value name="pm">

                                Sets style of controling worker process count.
                                Valid values are 'static' and 'apache-like'
                                <value name="style">static</value>

                                Sets the limit on the number of simultaneous requests that will be served.
                                Equivalent to Apache MaxClients directive.
                                Equivalent to PHP_FCGI_CHILDREN environment in original php.fcgi
                                Used with any pm_style.
                                <value name="max_children">5</value>

                                Settings group for 'apache-like' pm style
                                <value name="apache_like">

                                        Sets the number of server processes created on startup.
                                        Used only when 'apache-like' pm_style is selected
                                        <value name="StartServers">20</value>

                                        Sets the desired minimum number of idle server processes.
                                        Used only when 'apache-like' pm_style is selected
                                        <value name="MinSpareServers">5</value>

                                        Sets the desired maximum number of idle server processes.
                                        Used only when 'apache-like' pm_style is selected
                                        <value name="MaxSpareServers">35</value>

                                </value>

                        </value>

                        The timeout (in seconds) for serving a single request after which the worker process will be terminated
                        Should be used when 'max_execution_time' ini option does not stop script execution for some reason
                        '0s' means 'off'
                        <value name="request_terminate_timeout">0s</value>

                        The timeout (in seconds) for serving of single request after which a php backtrace will be dumped to slow.log file
                        '0s' means 'off'
                        <value name="request_slowlog_timeout">0s</value>

                        The log file for slow requests
                        <value name="slowlog">logs/slow.log</value>

                        Set open file desc rlimit
                        <value name="rlimit_files">1024</value>

                        Set max core size rlimit
                        <value name="rlimit_core">unlimited</value>

                        Chroot to this directory at the start, absolute path
                        <value name="chroot"></value>

                        Chdir to this directory at the start, absolute path
                        <value name="chdir"></value>

                        Redirect workers' stdout and stderr into main error log.
                        If not set, they will be redirected to /dev/null, according to FastCGI specs
                        <value name="catch_workers_output">yes</value>

                        How much requests each process should execute before respawn.
                        Useful to work around memory leaks in 3rd party libraries.
                        For endless request processing please specify 0
                        Equivalent to PHP_FCGI_MAX_REQUESTS
                        <value name="max_requests">1000</value>

                        Comma separated list of ipv4 addresses of FastCGI clients that allowed to connect.
                        Equivalent to FCGI_WEB_SERVER_ADDRS environment in original php.fcgi (5.2.2+)
                        Makes sense only with AF_INET listening socket.
                        <value name="allowed_clients">127.0.0.1</value>

                        Pass environment variables like LD_LIBRARY_PATH
                        All $VARIABLEs are taken from current environment
                        <value name="environment">
                                <value name="HOSTNAME">$HOSTNAME</value>
                                <value name="PATH">/usr/local/bin:/usr/bin:/bin</value>
                                <value name="TMP">/tmp</value>
                                <value name="TMPDIR">/tmp</value>
                                <value name="TEMP">/tmp</value>
                                <value name="OSTYPE">$OSTYPE</value>
                                <value name="MACHTYPE">$MACHTYPE</value>
                                <value name="MALLOC_CHECK_">2</value>
                        </value>

                </section>

        </workers>

</configuration>

Danke, Simon
 
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