; Start a new pool named 'www'.; the variable $pool can we used in any directive and will be replaced by the; pool name ('www' here)[www]; Per pool prefix; It only applies on the following directives:; - 'slowlog'; - 'listen' (unixsocket); - 'chroot'; - 'chdir'; - 'php_values'; - 'php_admin_values'; When not set, the global prefix (or @php_fpm_prefix@) applies instead.; Note: This directive can also be relative to the global prefix.; Default Value: none;prefix = /path/to/pools/$pool; 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 user chosen to provide access to the same directories as httpduser = apache; RPM: Keep a group allowed to write in log dir.group = apache; 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 IPv4 address on;                            a specific port;;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on;                            a specific port;;   'port'                 - to listen on a TCP socket to all IPv4 addresses on a;                            specific port;;   '[::]:port'            - to listen on a TCP socket to all addresses;                            (IPv6 and IPv4-mapped) 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.; Default Value: 65535;listen.backlog = 65535; 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.; Default Values: user and group are set as the running user;                 mode is set to 0660;listen.owner = nobody;listen.group = nobody;listen.mode = 0660; When POSIX Access Control Lists are supported you can set them using; these options, value is a comma separated list of user/group names.; When set, listen.owner and listen.group are ignored;listen.acl_users = apache,nginx;listen.acl_groups =; List of addresses (IPv4/IPv6) 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: anylisten.allowed_clients = 127.0.0.1; Specify the nice(2) priority to apply to the pool processes (only if set); The value can vary from -19 (highest priority) to 20 (lower priority); Note: - It will only work if the FPM master process is launched as root;       - The pool processes will inherit the master process priority;         unless it specified otherwise; Default Value: no set; process.priority = -19; 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. With this process management, there will be;             always at least 1 children.;             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.;  ondemand - no children are created at startup. Children will be forked when;             new requests will connect. The following parameter are used:;             pm.max_children           - the maximum number of children that;                                         can be alive at the same time.;             pm.process_idle_timeout   - The number of seconds after which;                                         an idle process 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 when pm is set to 'dynamic' or 'ondemand'.; 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. The below defaults are based on a server without much resources. Don't; forget to tweak pm.* to fit your needs.; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'; Note: This value is mandatory.pm.max_children = 500; 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) / 2pm.start_servers = 100; 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 = 100; 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 = 200 ; The number of seconds after which an idle process will be killed.; Note: Used only when pm is set to 'ondemand'; Default Value: 10s;pm.process_idle_timeout = 10s;; 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: 0pm.max_requests = 5000; The URI to view the FPM status page. If this value is not set, no URI will be; recognized as a status page. It shows the following informations:;   pool                 - the name of the pool;;   process manager      - static, dynamic or ondemand;;   start time           - the date and time FPM has started;;   start since          - number of seconds since FPM has started;;   accepted conn        - the number of request accepted by the pool;;   listen queue         - the number of request in the queue of pending;                          connections (see backlog in listen(2));;   max listen queue     - the maximum number of requests in the queue;                          of pending connections since FPM has started;;   listen queue len     - the size of the socket queue of pending connections;;   idle processes       - the number of idle processes;;   active processes     - the number of active processes;;   total processes      - the number of idle + active processes;;   max active processes - the maximum number of active processes since FPM;                          has started;;   max children reached - number of times, the process limit has been reached,;                          when pm tries to start more children (works only for;                          pm 'dynamic' and 'ondemand');; Value are updated in real time.; Example output:;   pool:                 www;   process manager:      static;   start time:           01/Jul/2011:17:53:49 +0200;   start since:          62636;   accepted conn:        190460;   listen queue:         0;   max listen queue:     1;   listen queue len:     42;   idle processes:       4;   active processes:     11;   total processes:      15;   max active processes: 12;   max children reached: 0;; By default the status page output is formatted as text/plain. Passing either; 'html', 'xml' or 'json' in the 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;   http://www.foo.bar/status?xml;; By default the status page only outputs short status. Passing 'full' in the; query string will also return status for each pool process.; Example:;   http://www.foo.bar/status?full;   http://www.foo.bar/status?json&full;   http://www.foo.bar/status?html&full;   http://www.foo.bar/status?xml&full; The Full status returns for each process:;   pid                  - the PID of the process;;   state                - the state of the process (Idle, Running, ...);;   start time           - the date and time the process has started;;   start since          - the number of seconds since the process has started;;   requests             - the number of requests the process has served;;   request duration     - the duration in µs of the requests;;   request method       - the request method (GET, POST, ...);;   request URI          - the request URI with the query string;;   content length       - the content length of the request (only with POST);;   user                 - the user (PHP_AUTH_USER) (or '-' if not set);;   script               - the main script called (or '-' if not set);;   last request cpu     - the %cpu the last request consumed;                          it's always 0 if the process is not in Idle state;                          because CPU calculation is done when the request;                          processing has terminated;;   last request memory  - the max amount of memory the last request consumed;                          it's always 0 if the process is not in Idle state;                          because memory calculation is done when the request;                          processing has terminated;; If the process is in Idle state, then informations are related to the; last request the process has served. Otherwise informations are related to; the current request being served.; Example output:;   ************************;   pid:                  31330;   state:                Running;   start time:           01/Jul/2011:17:53:49 +0200;   start since:          63087;   requests:             12808;   request duration:     1250261;   request method:       GET;   request URI:          /test_mem.php?N=10000;   content length:       0;   user:                 -;   script:               /home/fat/web/docs/php/test_mem.php;   last request cpu:     0.00;   last request memory:  0;; Note: There is a real-time FPM status monitoring sample web page available;       It's available in: @EXPANDED_DATADIR@/fpm/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 access log file; Default: not set;access.log = log/$pool.access.log; The access log format.; The following syntax is allowed;  %%: the '%' character;  %C: %CPU used by the request;      it can accept the following format:;      - %{user}C for user CPU only;      - %{system}C for system CPU only;      - %{total}C  for user + system CPU (default);  %d: time taken to serve the request;      it can accept the following format:;      - %{seconds}d (default);      - %{miliseconds}d;      - %{mili}d;      - %{microseconds}d;      - %{micro}d;  %e: an environment variable (same as $_ENV or $_SERVER);      it must be associated with embraces to specify the name of the env;      variable. Some exemples:;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e;  %f: script filename;  %l: content-length of the request (for POST request only);  %m: request method;  %M: peak of memory allocated by PHP;      it can accept the following format:;      - %{bytes}M (default);      - %{kilobytes}M;      - %{kilo}M;      - %{megabytes}M;      - %{mega}M;  %n: pool name;  %o: output header;      it must be associated with embraces to specify the name of the header:;      - %{Content-Type}o;      - %{X-Powered-By}o;      - %{Transfert-Encoding}o;      - ....;  %p: PID of the child that serviced the request;  %P: PID of the parent of the child that serviced the request;  %q: the query string;  %Q: the '?' character if query string exists;  %r: the request URI (without the query string, see %q and %Q);  %R: remote IP address;  %s: status (response code);  %t: server time the request was received;      it can accept a strftime(3) format:;      %d/%b/%Y:%H:%M:%S %z (default);  %T: time the log has been written (the request has finished);      it can accept a strftime(3) format:;      %d/%b/%Y:%H:%M:%S %z (default);  %u: remote user;; Default: "%R - %u %t \"%m %r\" %s";access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"; The log file for slow requests; Default Value: not set; Note: slowlog is mandatory if request_slowlog_timeout is setslowlog = /var/log/php-fpm/www-slow.log; 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: 0request_slowlog_timeout = 2s; 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: 0request_terminate_timeout = 4s ; 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: you can prefix with '$prefix' to chroot to the pool prefix or one; of its subdirectories. If the pool prefix is not set, the global prefix; will be used instead.; 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.; Note: relative path can be used.; 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.; Note: on highloaded environement, this can cause some delay in the page; process time (several ms).; Default Value: no;catch_workers_output = yes ; Clear environment in FPM workers; Prevents arbitrary environment variables from reaching FPM worker processes; by clearing the environment in workers before env vars specified in this; pool configuration are added.; Setting to "no" will make all environment variables available to PHP code; via getenv(), $_ENV and $_SERVER.; Default Value: yes;clear_env = no; Limits the extensions of the main script FPM will allow to parse. This can; prevent configuration mistakes on the web server side. You should only limit; FPM to .php extensions to prevent malicious users to use other extensions to; exectute php code.; Note: set an empty value to allow all extensions.; Default Value: .php;security.limit_extensions = .php .php3 .php4 .php5; 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.; Note: path INI options can be relative and will be expanded with the prefix; (pool, global or @prefix@); 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 www@my.domain.com;php_flag[display_errors] = offphp_admin_value[error_log] = /var/log/php-fpm/www-error.logphp_admin_flag[log_errors] = on;php_admin_value[memory_limit] = 128M; Set the following data paths to directories owned by the FPM process user.;; Do not change the ownership of existing system directories, if the process; user does not have write permission, create dedicated directories for this; purpose.;; See warning about choosing the location of these directories on your system; at http://php.net/session.save-pathphp_value[session.save_handler] = filesphp_value[session.save_path]    = /var/lib/php/sessionphp_value[soap.wsdl_cache_dir]  = /var/lib/php/wsdlcache