xref: /PHP-5.5/sapi/fpm/php-fpm.conf.in (revision c50ee655)
1;;;;;;;;;;;;;;;;;;;;;
2; FPM Configuration ;
3;;;;;;;;;;;;;;;;;;;;;
4
5; All relative paths in this configuration file are relative to PHP's install
6; prefix (@prefix@). This prefix can be dynamically changed by using the
7; '-p' argument from the command line.
8
9; Include one or more files. If glob(3) exists, it is used to include a bunch of
10; files from a glob(3) pattern. This directive can be used everywhere in the
11; file.
12; Relative path can also be used. They will be prefixed by:
13;  - the global prefix if it's been set (-p argument)
14;  - @prefix@ otherwise
15;include=etc/fpm.d/*.conf
16
17;;;;;;;;;;;;;;;;;;
18; Global Options ;
19;;;;;;;;;;;;;;;;;;
20
21[global]
22; Pid file
23; Note: the default prefix is @EXPANDED_LOCALSTATEDIR@
24; Default Value: none
25;pid = run/php-fpm.pid
26
27; Error log file
28; If it's set to "syslog", log is sent to syslogd instead of being written
29; in a local file.
30; Note: the default prefix is @EXPANDED_LOCALSTATEDIR@
31; Default Value: log/php-fpm.log
32;error_log = log/php-fpm.log
33
34; syslog_facility is used to specify what type of program is logging the
35; message. This lets syslogd specify that messages from different facilities
36; will be handled differently.
37; See syslog(3) for possible values (ex daemon equiv LOG_DAEMON)
38; Default Value: daemon
39;syslog.facility = daemon
40
41; syslog_ident is prepended to every message. If you have multiple FPM
42; instances running on the same server, you can change the default value
43; which must suit common needs.
44; Default Value: php-fpm
45;syslog.ident = php-fpm
46
47; Log level
48; Possible Values: alert, error, warning, notice, debug
49; Default Value: notice
50;log_level = notice
51
52; If this number of child processes exit with SIGSEGV or SIGBUS within the time
53; interval set by emergency_restart_interval then FPM will restart. A value
54; of '0' means 'Off'.
55; Default Value: 0
56;emergency_restart_threshold = 0
57
58; Interval of time used by emergency_restart_interval to determine when
59; a graceful restart will be initiated.  This can be useful to work around
60; accidental corruptions in an accelerator's shared memory.
61; Available Units: s(econds), m(inutes), h(ours), or d(ays)
62; Default Unit: seconds
63; Default Value: 0
64;emergency_restart_interval = 0
65
66; Time limit for child processes to wait for a reaction on signals from master.
67; Available units: s(econds), m(inutes), h(ours), or d(ays)
68; Default Unit: seconds
69; Default Value: 0
70;process_control_timeout = 0
71
72; The maximum number of processes FPM will fork. This has been design to control
73; the global number of processes when using dynamic PM within a lot of pools.
74; Use it with caution.
75; Note: A value of 0 indicates no limit
76; Default Value: 0
77; process.max = 128
78
79; Specify the nice(2) priority to apply to the master process (only if set)
80; The value can vary from -19 (highest priority) to 20 (lower priority)
81; Note: - It will only work if the FPM master process is launched as root
82;       - The pool process will inherit the master process priority
83;         unless it specified otherwise
84; Default Value: no set
85; process.priority = -19
86
87; Send FPM to background. Set to 'no' to keep FPM in foreground for debugging.
88; Default Value: yes
89;daemonize = yes
90
91; Set open file descriptor rlimit for the master process.
92; Default Value: system defined value
93;rlimit_files = 1024
94
95; Set max core size rlimit for the master process.
96; Possible Values: 'unlimited' or an integer greater or equal to 0
97; Default Value: system defined value
98;rlimit_core = 0
99
100; Specify the event mechanism FPM will use. The following is available:
101; - select     (any POSIX os)
102; - poll       (any POSIX os)
103; - epoll      (linux >= 2.5.44)
104; - kqueue     (FreeBSD >= 4.1, OpenBSD >= 2.9, NetBSD >= 2.0)
105; - /dev/poll  (Solaris >= 7)
106; - port       (Solaris >= 10)
107; Default Value: not set (auto detection)
108;events.mechanism = epoll
109
110; When FPM is build with systemd integration, specify the interval,
111; in second, between health report notification to systemd.
112; Set to 0 to disable.
113; Available Units: s(econds), m(inutes), h(ours)
114; Default Unit: seconds
115; Default value: 10
116;systemd_interval = 10
117
118;;;;;;;;;;;;;;;;;;;;
119; Pool Definitions ;
120;;;;;;;;;;;;;;;;;;;;
121
122; Multiple pools of child processes may be started with different listening
123; ports and different management options.  The name of the pool will be
124; used in logs and stats. There is no limitation on the number of pools which
125; FPM can handle. Your system will tell you anyway :)
126
127; Start a new pool named 'www'.
128; the variable $pool can we used in any directive and will be replaced by the
129; pool name ('www' here)
130[www]
131
132; Per pool prefix
133; It only applies on the following directives:
134; - 'access.log'
135; - 'slowlog'
136; - 'listen' (unixsocket)
137; - 'chroot'
138; - 'chdir'
139; - 'php_values'
140; - 'php_admin_values'
141; When not set, the global prefix (or @php_fpm_prefix@) applies instead.
142; Note: This directive can also be relative to the global prefix.
143; Default Value: none
144;prefix = /path/to/pools/$pool
145
146; Unix user/group of processes
147; Note: The user is mandatory. If the group is not set, the default user's group
148;       will be used.
149user = @php_fpm_user@
150group = @php_fpm_group@
151
152; The address on which to accept FastCGI requests.
153; Valid syntaxes are:
154;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
155;                            a specific port;
156;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
157;                            a specific port;
158;   'port'                 - to listen on a TCP socket to all IPv4 addresses on a
159;                            specific port;
160;   '[::]:port'            - to listen on a TCP socket to all addresses
161;                            (IPv6 and IPv4-mapped) on a specific port;
162;   '/path/to/unix/socket' - to listen on a unix socket.
163; Note: This value is mandatory.
164listen = 127.0.0.1:9000
165
166; Set listen(2) backlog.
167; Default Value: 65535 (-1 on FreeBSD and OpenBSD)
168;listen.backlog = 65535
169
170; Set permissions for unix socket, if one is used. In Linux, read/write
171; permissions must be set in order to allow connections from a web server. Many
172; BSD-derived systems allow connections regardless of permissions.
173; Default Values: user and group are set as the running user
174;                 mode is set to 0660
175;listen.owner = @php_fpm_user@
176;listen.group = @php_fpm_group@
177;listen.mode = 0660
178
179; List of addresses (IPv4/IPv6) of FastCGI clients which are allowed to connect.
180; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original
181; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address
182; must be separated by a comma. If this value is left blank, connections will be
183; accepted from any ip address.
184; Default Value: any
185;listen.allowed_clients = 127.0.0.1
186
187; Specify the nice(2) priority to apply to the pool processes (only if set)
188; The value can vary from -19 (highest priority) to 20 (lower priority)
189; Note: - It will only work if the FPM master process is launched as root
190;       - The pool processes will inherit the master process priority
191;         unless it specified otherwise
192; Default Value: no set
193; process.priority = -19
194
195; Choose how the process manager will control the number of child processes.
196; Possible Values:
197;   static  - a fixed number (pm.max_children) of child processes;
198;   dynamic - the number of child processes are set dynamically based on the
199;             following directives. With this process management, there will be
200;             always at least 1 children.
201;             pm.max_children      - the maximum number of children that can
202;                                    be alive at the same time.
203;             pm.start_servers     - the number of children created on startup.
204;             pm.min_spare_servers - the minimum number of children in 'idle'
205;                                    state (waiting to process). If the number
206;                                    of 'idle' processes is less than this
207;                                    number then some children will be created.
208;             pm.max_spare_servers - the maximum number of children in 'idle'
209;                                    state (waiting to process). If the number
210;                                    of 'idle' processes is greater than this
211;                                    number then some children will be killed.
212;  ondemand - no children are created at startup. Children will be forked when
213;             new requests will connect. The following parameter are used:
214;             pm.max_children           - the maximum number of children that
215;                                         can be alive at the same time.
216;             pm.process_idle_timeout   - The number of seconds after which
217;                                         an idle process will be killed.
218; Note: This value is mandatory.
219pm = dynamic
220
221; The number of child processes to be created when pm is set to 'static' and the
222; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
223; This value sets the limit on the number of simultaneous requests that will be
224; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
225; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
226; CGI. The below defaults are based on a server without much resources. Don't
227; forget to tweak pm.* to fit your needs.
228; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'
229; Note: This value is mandatory.
230pm.max_children = 5
231
232; The number of child processes created on startup.
233; Note: Used only when pm is set to 'dynamic'
234; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
235pm.start_servers = 2
236
237; The desired minimum number of idle server processes.
238; Note: Used only when pm is set to 'dynamic'
239; Note: Mandatory when pm is set to 'dynamic'
240pm.min_spare_servers = 1
241
242; The desired maximum number of idle server processes.
243; Note: Used only when pm is set to 'dynamic'
244; Note: Mandatory when pm is set to 'dynamic'
245pm.max_spare_servers = 3
246
247; The number of seconds after which an idle process will be killed.
248; Note: Used only when pm is set to 'ondemand'
249; Default Value: 10s
250;pm.process_idle_timeout = 10s;
251
252; The number of requests each child process should execute before respawning.
253; This can be useful to work around memory leaks in 3rd party libraries. For
254; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS.
255; Default Value: 0
256;pm.max_requests = 500
257
258; The URI to view the FPM status page. If this value is not set, no URI will be
259; recognized as a status page. It shows the following informations:
260;   pool                 - the name of the pool;
261;   process manager      - static, dynamic or ondemand;
262;   start time           - the date and time FPM has started;
263;   start since          - number of seconds since FPM has started;
264;   accepted conn        - the number of request accepted by the pool;
265;   listen queue         - the number of request in the queue of pending
266;                          connections (see backlog in listen(2));
267;   max listen queue     - the maximum number of requests in the queue
268;                          of pending connections since FPM has started;
269;   listen queue len     - the size of the socket queue of pending connections;
270;   idle processes       - the number of idle processes;
271;   active processes     - the number of active processes;
272;   total processes      - the number of idle + active processes;
273;   max active processes - the maximum number of active processes since FPM
274;                          has started;
275;   max children reached - number of times, the process limit has been reached,
276;                          when pm tries to start more children (works only for
277;                          pm 'dynamic' and 'ondemand');
278; Value are updated in real time.
279; Example output:
280;   pool:                 www
281;   process manager:      static
282;   start time:           01/Jul/2011:17:53:49 +0200
283;   start since:          62636
284;   accepted conn:        190460
285;   listen queue:         0
286;   max listen queue:     1
287;   listen queue len:     42
288;   idle processes:       4
289;   active processes:     11
290;   total processes:      15
291;   max active processes: 12
292;   max children reached: 0
293;
294; By default the status page output is formatted as text/plain. Passing either
295; 'html', 'xml' or 'json' in the query string will return the corresponding
296; output syntax. Example:
297;   http://www.foo.bar/status
298;   http://www.foo.bar/status?json
299;   http://www.foo.bar/status?html
300;   http://www.foo.bar/status?xml
301;
302; By default the status page only outputs short status. Passing 'full' in the
303; query string will also return status for each pool process.
304; Example:
305;   http://www.foo.bar/status?full
306;   http://www.foo.bar/status?json&full
307;   http://www.foo.bar/status?html&full
308;   http://www.foo.bar/status?xml&full
309; The Full status returns for each process:
310;   pid                  - the PID of the process;
311;   state                - the state of the process (Idle, Running, ...);
312;   start time           - the date and time the process has started;
313;   start since          - the number of seconds since the process has started;
314;   requests             - the number of requests the process has served;
315;   request duration     - the duration in µs of the requests;
316;   request method       - the request method (GET, POST, ...);
317;   request URI          - the request URI with the query string;
318;   content length       - the content length of the request (only with POST);
319;   user                 - the user (PHP_AUTH_USER) (or '-' if not set);
320;   script               - the main script called (or '-' if not set);
321;   last request cpu     - the %cpu the last request consumed
322;                          it's always 0 if the process is not in Idle state
323;                          because CPU calculation is done when the request
324;                          processing has terminated;
325;   last request memory  - the max amount of memory the last request consumed
326;                          it's always 0 if the process is not in Idle state
327;                          because memory calculation is done when the request
328;                          processing has terminated;
329; If the process is in Idle state, then informations are related to the
330; last request the process has served. Otherwise informations are related to
331; the current request being served.
332; Example output:
333;   ************************
334;   pid:                  31330
335;   state:                Running
336;   start time:           01/Jul/2011:17:53:49 +0200
337;   start since:          63087
338;   requests:             12808
339;   request duration:     1250261
340;   request method:       GET
341;   request URI:          /test_mem.php?N=10000
342;   content length:       0
343;   user:                 -
344;   script:               /home/fat/web/docs/php/test_mem.php
345;   last request cpu:     0.00
346;   last request memory:  0
347;
348; Note: There is a real-time FPM status monitoring sample web page available
349;       It's available in: @EXPANDED_DATADIR@/fpm/status.html
350;
351; Note: The value must start with a leading slash (/). The value can be
352;       anything, but it may not be a good idea to use the .php extension or it
353;       may conflict with a real PHP file.
354; Default Value: not set
355;pm.status_path = /status
356
357; The ping URI to call the monitoring page of FPM. If this value is not set, no
358; URI will be recognized as a ping page. This could be used to test from outside
359; that FPM is alive and responding, or to
360; - create a graph of FPM availability (rrd or such);
361; - remove a server from a group if it is not responding (load balancing);
362; - trigger alerts for the operating team (24/7).
363; Note: The value must start with a leading slash (/). The value can be
364;       anything, but it may not be a good idea to use the .php extension or it
365;       may conflict with a real PHP file.
366; Default Value: not set
367;ping.path = /ping
368
369; This directive may be used to customize the response of a ping request. The
370; response is formatted as text/plain with a 200 response code.
371; Default Value: pong
372;ping.response = pong
373
374; The access log file
375; Default: not set
376;access.log = log/$pool.access.log
377
378; The access log format.
379; The following syntax is allowed
380;  %%: the '%' character
381;  %C: %CPU used by the request
382;      it can accept the following format:
383;      - %{user}C for user CPU only
384;      - %{system}C for system CPU only
385;      - %{total}C  for user + system CPU (default)
386;  %d: time taken to serve the request
387;      it can accept the following format:
388;      - %{seconds}d (default)
389;      - %{miliseconds}d
390;      - %{mili}d
391;      - %{microseconds}d
392;      - %{micro}d
393;  %e: an environment variable (same as $_ENV or $_SERVER)
394;      it must be associated with embraces to specify the name of the env
395;      variable. Some exemples:
396;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
397;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
398;  %f: script filename
399;  %l: content-length of the request (for POST request only)
400;  %m: request method
401;  %M: peak of memory allocated by PHP
402;      it can accept the following format:
403;      - %{bytes}M (default)
404;      - %{kilobytes}M
405;      - %{kilo}M
406;      - %{megabytes}M
407;      - %{mega}M
408;  %n: pool name
409;  %o: output header
410;      it must be associated with embraces to specify the name of the header:
411;      - %{Content-Type}o
412;      - %{X-Powered-By}o
413;      - %{Transfert-Encoding}o
414;      - ....
415;  %p: PID of the child that serviced the request
416;  %P: PID of the parent of the child that serviced the request
417;  %q: the query string
418;  %Q: the '?' character if query string exists
419;  %r: the request URI (without the query string, see %q and %Q)
420;  %R: remote IP address
421;  %s: status (response code)
422;  %t: server time the request was received
423;      it can accept a strftime(3) format:
424;      %d/%b/%Y:%H:%M:%S %z (default)
425;  %T: time the log has been written (the request has finished)
426;      it can accept a strftime(3) format:
427;      %d/%b/%Y:%H:%M:%S %z (default)
428;  %u: remote user
429;
430; Default: "%R - %u %t \"%m %r\" %s"
431;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"
432
433; The log file for slow requests
434; Default Value: not set
435; Note: slowlog is mandatory if request_slowlog_timeout is set
436;slowlog = log/$pool.log.slow
437
438; The timeout for serving a single request after which a PHP backtrace will be
439; dumped to the 'slowlog' file. A value of '0s' means 'off'.
440; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
441; Default Value: 0
442;request_slowlog_timeout = 0
443
444; The timeout for serving a single request after which the worker process will
445; be killed. This option should be used when the 'max_execution_time' ini option
446; does not stop script execution for some reason. A value of '0' means 'off'.
447; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
448; Default Value: 0
449;request_terminate_timeout = 0
450
451; Set open file descriptor rlimit.
452; Default Value: system defined value
453;rlimit_files = 1024
454
455; Set max core size rlimit.
456; Possible Values: 'unlimited' or an integer greater or equal to 0
457; Default Value: system defined value
458;rlimit_core = 0
459
460; Chroot to this directory at the start. This value must be defined as an
461; absolute path. When this value is not set, chroot is not used.
462; Note: you can prefix with '$prefix' to chroot to the pool prefix or one
463; of its subdirectories. If the pool prefix is not set, the global prefix
464; will be used instead.
465; Note: chrooting is a great security feature and should be used whenever
466;       possible. However, all PHP paths will be relative to the chroot
467;       (error_log, sessions.save_path, ...).
468; Default Value: not set
469;chroot =
470
471; Chdir to this directory at the start.
472; Note: relative path can be used.
473; Default Value: current directory or / when chroot
474;chdir = /var/www
475
476; Redirect worker stdout and stderr into main error log. If not set, stdout and
477; stderr will be redirected to /dev/null according to FastCGI specs.
478; Note: on highloaded environement, this can cause some delay in the page
479; process time (several ms).
480; Default Value: no
481;catch_workers_output = yes
482
483; Clear environment in FPM workers
484; Prevents arbitrary environment variables from reaching FPM worker processes
485; by clearing the environment in workers before env vars specified in this
486; pool configuration are added.
487; Setting to "no" will make all environment variables available to PHP code
488; via getenv(), $_ENV and $_SERVER.
489; Default Value: yes
490;clear_env = no
491
492; Limits the extensions of the main script FPM will allow to parse. This can
493; prevent configuration mistakes on the web server side. You should only limit
494; FPM to .php extensions to prevent malicious users to use other extensions to
495; exectute php code.
496; Note: set an empty value to allow all extensions.
497; Default Value: .php
498;security.limit_extensions = .php .php3 .php4 .php5
499
500; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
501; the current environment.
502; Default Value: clean env
503;env[HOSTNAME] = $HOSTNAME
504;env[PATH] = /usr/local/bin:/usr/bin:/bin
505;env[TMP] = /tmp
506;env[TMPDIR] = /tmp
507;env[TEMP] = /tmp
508
509; Additional php.ini defines, specific to this pool of workers. These settings
510; overwrite the values previously defined in the php.ini. The directives are the
511; same as the PHP SAPI:
512;   php_value/php_flag             - you can set classic ini defines which can
513;                                    be overwritten from PHP call 'ini_set'.
514;   php_admin_value/php_admin_flag - these directives won't be overwritten by
515;                                     PHP call 'ini_set'
516; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no.
517
518; Defining 'extension' will load the corresponding shared extension from
519; extension_dir. Defining 'disable_functions' or 'disable_classes' will not
520; overwrite previously defined php.ini values, but will append the new value
521; instead.
522
523; Note: path INI options can be relative and will be expanded with the prefix
524; (pool, global or @prefix@)
525
526; Default Value: nothing is defined by default except the values in php.ini and
527;                specified at startup with the -d argument
528;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f www@my.domain.com
529;php_flag[display_errors] = off
530;php_admin_value[error_log] = /var/log/fpm-php.www.log
531;php_admin_flag[log_errors] = on
532;php_admin_value[memory_limit] = 32M
533