504 gateway timeout

Hello,

we are using Nginx + PHP FPM for the first time.

We run Nginx on a server with Plesk, which forced us to
give Nginx the identification of “Apache”, so that
Plesk is allowing this change.
(Sorry… ;-))

So far all works great, but now it seems we are having some kind of
timeout problem.

When I submit changes to the WordPress menu I get 504 gateway timeout
error.
I also use Smart Thumbs and get a blank page after entering my license
key.

We think it is either a timeout problem or some kind of other
limitation.

We tried to increase values in php.ini and php-fpm.conf and we also
added
and increased fastcgi_read_timeout.

But this all did not help.

Thanks!

BTW: Is is possible to get somewhere some kind of fulltime paid support
with Nginx?
Is there anywhere a list of Nginx experts we could hire?

Best Regards,
Alex

Here is the nginx.conf:

Nginx Conf File

user apache apache;
worker_processes 1;
timer_resolution 100ms;
worker_rlimit_nofile 8192;
worker_priority -5;
error_log /var/log/nginx/nginx.error.log;
events {
worker_connections 1024;
use epoll;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] ’
'"$request" $status $bytes_sent ’
'"$http_referer" “$http_user_agent” ’
‘"$gzip_ratio"’;
log_format download '$remote_addr - $remote_user [$time_local]

'"$request" $status $bytes_sent ’
'"$http_referer" “$http_user_agent” ’
‘"$http_range" “$sent_http_content_range”’;
client_header_timeout 10m;
client_body_timeout 10m;
send_timeout 999999;
proxy_read_timeout 999999;
proxy_connect_timeout 300;
fastcgi_read_timeout 300;
proxy_send_timeout 10m;
connection_pool_size 256;
client_header_buffer_size 1k;
large_client_header_buffers 4 2k;
request_pool_size 4k;
gzip on;
gzip_disable “MSIE [1-6].”;
gzip_comp_level 3;
gzip_min_length 1100;
gzip_buffers 4 8k;
gzip_http_version 1.1;
gzip_proxied any;
gzip_types text/plain application/xml application/x-javascript
text/css;
output_buffers 1 32k;
postpone_output 1460;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 999999;
ignore_invalid_headers on;
resolver 127.0.0.1;
include /etc/nginx/conf.d/*.conf;

SET the path to the .dat file used for determining the visitor’s

country from the IP-address ###
geoip_country /usr/local/share/GeoIP/GeoIP.dat;
geoip_city /usr/local/share/GeoIP/GeoLiteCity.dat;

     #geoip_country GeoIP.dat;
     #geoip_city    GeoLiteCity.dat;

SET FASTCGI Variables

     fastcgi_param GEOIP_COUNTRY_CODE $geoip_country_code;
     fastcgi_param GEOIP_COUNTRY_CODE3 $geoip_country_code3;
     fastcgi_param GEOIP_COUNTRY_NAME $geoip_country_name;
 #    fastcgi_param GEOIP_COUNTRY_CODE_BY_NAME

$geoip_country_code_by_name;
}

Here php-fpm.conf

; Start a new pool named ‘www’.
[www]

; The address on which to accept FastCGI requests.
; Valid syntaxes are:
; ‘ip.add.re.ss:port’ - to listen on a TCP socket to a specific
address on
; a specific port;
; ‘port’ - to listen on a TCP socket to all addresses
on
a
; specific port;
; ‘/path/to/unix/socket’ - to listen on a unix socket.
; Note: This value is mandatory.
listen = 127.0.0.1:9000

; Set listen(2) backlog. A value of ‘-1’ means unlimited.
; Default Value: -1
;listen.backlog = -1

; List of ipv4 addresses of FastCGI clients which are allowed to
connect.
; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the
original
; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each
address
; must be separated by a comma. If this value is left blank, connections
will be
; accepted from any ip address.
; Default Value: any
listen.allowed_clients = 127.0.0.1

; Set permissions for unix socket, if one is used. In Linux, read/write
; permissions must be set in order to allow connections from a web
server.
Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
; mode is set to 0666
;listen.owner = nobody
;listen.group = nobody
;listen.mode = 0666

; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default
user’s
group
; will be used.
; RPM: apache Choosed to be able to access some dir as httpd
user = apache
; RPM: Keep a group allowed to write in log dir.
group = apache

; Choose how the process manager will control the number of child
processes.
; Possible Values:
; static - a fixed number (pm.max_children) of child processes;
; dynamic - the number of child processes are set dynamically based on
the
; following directives:
; pm.max_children - the maximum number of children that
can
; be alive at the same time.
; pm.start_servers - the number of children created on
startup.
; pm.min_spare_servers - the minimum number of children in
‘idle’
; state (waiting to process). If the
number
; of ‘idle’ processes is less than
this
; number then some children will be
created.
; pm.max_spare_servers - the maximum number of children in
‘idle’
; state (waiting to process). If the
number
; of ‘idle’ processes is greater than
this
; number then some children will be
killed.
; Note: This value is mandatory.
pm = dynamic

; The number of child processes to be created when pm is set to ‘static’
and the
; maximum number of child processes to be created when pm is set to
‘dynamic’.
; This value sets the limit on the number of simultaneous requests that
will be
; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
; Equivalent to the PHP_FCGI_CHILDREN environment variable in the
original
PHP
; CGI.
; Note: Used when pm is set to either ‘static’ or ‘dynamic’
; Note: This value is mandatory.
pm.max_children = 50

; The number of child processes created on startup.
; Note: Used only when pm is set to ‘dynamic’
; Default Value: min_spare_servers + (max_spare_servers -
min_spare_servers) / 2
pm.start_servers = 5

; The desired minimum number of idle server processes.
; Note: Used only when pm is set to ‘dynamic’
; Note: Mandatory when pm is set to ‘dynamic’
pm.min_spare_servers = 5

; The desired maximum number of idle server processes.
; Note: Used only when pm is set to ‘dynamic’
; Note: Mandatory when pm is set to ‘dynamic’
pm.max_spare_servers = 35

; The number of requests each child process should execute before
respawning.
; This can be useful to work around memory leaks in 3rd party libraries.
For
; endless request processing specify ‘0’. Equivalent to
PHP_FCGI_MAX_REQUESTS.
; Default Value: 0
;pm.max_requests = 500

; The URI to view the FPM status page. If this value is not set, no URI
will be
; recognized as a status page. By default, the status page shows the
following
; information:
; accepted conn - the number of request accepted by the pool;
; pool - the name of the pool;
; process manager - static or dynamic;
; idle processes - the number of idle processes;
; active processes - the number of active processes;
; total processes - the number of idle + active processes.
; The values of ‘idle processes’, ‘active processes’ and ‘total
processes’
are
; updated each second. The value of ‘accepted conn’ is updated in real
time.
; Example output:
; accepted conn: 12073
; pool: www
; process manager: static
; idle processes: 35
; active processes: 65
; total processes: 100
; By default the status page output is formatted as text/plain. Passing
either
; ‘html’ or ‘json’ as a query string will return the corresponding
output
; syntax. Example:
; http://www.foo.bar/status
; http://www.foo.bar/status?json
; http://www.foo.bar/status?html
; Note: The value must start with a leading slash (/). The value can be
; anything, but it may not be a good idea to use the .php
extension
or it
; may conflict with a real PHP file.
; Default Value: not set
;pm.status_path = /status

; The ping URI to call the monitoring page of FPM. If this value is not
set, no
; URI will be recognized as a ping page. This could be used to test from
outside
; that FPM is alive and responding, or to
; - create a graph of FPM availability (rrd or such);
; - remove a server from a group if it is not responding (load
balancing);
; - trigger alerts for the operating team (24/7).
; Note: The value must start with a leading slash (/). The value can be
; anything, but it may not be a good idea to use the .php
extension
or it
; may conflict with a real PHP file.
; Default Value: not set
;ping.path = /ping

; This directive may be used to customize the response of a ping
request.
The
; response is formatted as text/plain with a 200 response code.
; Default Value: pong
;ping.response = pong

; The timeout for serving a single request after which the worker
process
will
; be killed. This option should be used when the ‘max_execution_time’
ini
option
; does not stop script execution for some reason. A value of ‘0’ means
‘off’.
; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
; Default Value: 0
;request_terminate_timeout = 0

; The timeout for serving a single request after which a PHP backtrace
will be
; dumped to the ‘slowlog’ file. A value of ‘0s’ means ‘off’.
; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
; Default Value: 0
;request_slowlog_timeout = 0

; The log file for slow requests
; Default Value: not set
; Note: slowlog is mandatory if request_slowlog_timeout is set
slowlog = /var/log/php-fpm/www-slow.log

; Set open file descriptor rlimit.
; Default Value: system defined value
;rlimit_files = 1024

; Set max core size rlimit.
; Possible Values: ‘unlimited’ or an integer greater or equal to 0
; Default Value: system defined value
;rlimit_core = 0

; Chroot to this directory at the start. This value must be defined as
an
; absolute path. When this value is not set, chroot is not used.
; Note: chrooting is a great security feature and should be used
whenever
; possible. However, all PHP paths will be relative to the chroot
; (error_log, sessions.save_path, …).
; Default Value: not set
;chroot =

; Chdir to this directory at the start. This value must be an absolute
path.
; Default Value: current directory or / when chroot
;chdir = /var/www

; Redirect worker stdout and stderr into main error log. If not set,
stdout and
; stderr will be redirected to /dev/null according to FastCGI specs.
; Default Value: no
;catch_workers_output = yes

; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are
taken from
; the current environment.
; Default Value: clean env
;env[HOSTNAME] = $HOSTNAME
;env[PATH] = /usr/local/bin:/usr/bin:/bin
;env[TMP] = /tmp
;env[TMPDIR] = /tmp
;env[TEMP] = /tmp

; Additional php.ini defines, specific to this pool of workers. These
settings
; overwrite the values previously defined in the php.ini. The directives
are the
; same as the PHP SAPI:
; php_value/php_flag - you can set classic ini defines
which
can
; be overwritten from PHP call
‘ini_set’.
; php_admin_value/php_admin_flag - these directives won’t be
overwritten
by
; PHP call ‘ini_set’
; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no.

; Defining ‘extension’ will load the corresponding shared extension from
; extension_dir. Defining ‘disable_functions’ or ‘disable_classes’ will
not
; overwrite previously defined php.ini values, but will append the new
value
; instead.

; Default Value: nothing is defined by default except the values in
php.ini and
; specified at startup with the -d argument
;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f
[email protected]
php_flag[display_errors] = on
php_admin_value[error_log] = /var/log/php-fpm/www-error.log
php_admin_flag[log_errors] = on
;php_admin_value[memory_limit] = 32M


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