xref: /PHP-5.6/sapi/fpm/php-fpm.conf.in (revision d20bebfe)
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; When POSIX Access Control Lists are supported you can set them using
179; these options, value is a comma separated list of user/group names.
180; When set, listen.owner and listen.group are ignored
181;listen.acl_users =
182;listen.acl_groups =
183
184; List of addresses (IPv4/IPv6) of FastCGI clients which are allowed to connect.
185; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original
186; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address
187; must be separated by a comma. If this value is left blank, connections will be
188; accepted from any ip address.
189; Default Value: any
190;listen.allowed_clients = 127.0.0.1
191
192; Specify the nice(2) priority to apply to the pool processes (only if set)
193; The value can vary from -19 (highest priority) to 20 (lower priority)
194; Note: - It will only work if the FPM master process is launched as root
195;       - The pool processes will inherit the master process priority
196;         unless it specified otherwise
197; Default Value: no set
198; process.priority = -19
199
200; Set the process dumpable flag (PR_SET_DUMPABLE prctl) even if the process user
201; or group is differrent than the master process user. It allows to create process
202; core dump and ptrace the process for the pool user.
203; Default Value: no
204; process.dumpable = yes
205
206; Choose how the process manager will control the number of child processes.
207; Possible Values:
208;   static  - a fixed number (pm.max_children) of child processes;
209;   dynamic - the number of child processes are set dynamically based on the
210;             following directives. With this process management, there will be
211;             always at least 1 children.
212;             pm.max_children      - the maximum number of children that can
213;                                    be alive at the same time.
214;             pm.start_servers     - the number of children created on startup.
215;             pm.min_spare_servers - the minimum number of children in 'idle'
216;                                    state (waiting to process). If the number
217;                                    of 'idle' processes is less than this
218;                                    number then some children will be created.
219;             pm.max_spare_servers - the maximum number of children in 'idle'
220;                                    state (waiting to process). If the number
221;                                    of 'idle' processes is greater than this
222;                                    number then some children will be killed.
223;  ondemand - no children are created at startup. Children will be forked when
224;             new requests will connect. The following parameter are used:
225;             pm.max_children           - the maximum number of children that
226;                                         can be alive at the same time.
227;             pm.process_idle_timeout   - The number of seconds after which
228;                                         an idle process will be killed.
229; Note: This value is mandatory.
230pm = dynamic
231
232; The number of child processes to be created when pm is set to 'static' and the
233; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
234; This value sets the limit on the number of simultaneous requests that will be
235; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
236; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
237; CGI. The below defaults are based on a server without much resources. Don't
238; forget to tweak pm.* to fit your needs.
239; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'
240; Note: This value is mandatory.
241pm.max_children = 5
242
243; The number of child processes created on startup.
244; Note: Used only when pm is set to 'dynamic'
245; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
246pm.start_servers = 2
247
248; The desired minimum number of idle server processes.
249; Note: Used only when pm is set to 'dynamic'
250; Note: Mandatory when pm is set to 'dynamic'
251pm.min_spare_servers = 1
252
253; The desired maximum number of idle server processes.
254; Note: Used only when pm is set to 'dynamic'
255; Note: Mandatory when pm is set to 'dynamic'
256pm.max_spare_servers = 3
257
258; The number of seconds after which an idle process will be killed.
259; Note: Used only when pm is set to 'ondemand'
260; Default Value: 10s
261;pm.process_idle_timeout = 10s;
262
263; The number of requests each child process should execute before respawning.
264; This can be useful to work around memory leaks in 3rd party libraries. For
265; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS.
266; Default Value: 0
267;pm.max_requests = 500
268
269; The URI to view the FPM status page. If this value is not set, no URI will be
270; recognized as a status page. It shows the following informations:
271;   pool                 - the name of the pool;
272;   process manager      - static, dynamic or ondemand;
273;   start time           - the date and time FPM has started;
274;   start since          - number of seconds since FPM has started;
275;   accepted conn        - the number of request accepted by the pool;
276;   listen queue         - the number of request in the queue of pending
277;                          connections (see backlog in listen(2));
278;   max listen queue     - the maximum number of requests in the queue
279;                          of pending connections since FPM has started;
280;   listen queue len     - the size of the socket queue of pending connections;
281;   idle processes       - the number of idle processes;
282;   active processes     - the number of active processes;
283;   total processes      - the number of idle + active processes;
284;   max active processes - the maximum number of active processes since FPM
285;                          has started;
286;   max children reached - number of times, the process limit has been reached,
287;                          when pm tries to start more children (works only for
288;                          pm 'dynamic' and 'ondemand');
289; Value are updated in real time.
290; Example output:
291;   pool:                 www
292;   process manager:      static
293;   start time:           01/Jul/2011:17:53:49 +0200
294;   start since:          62636
295;   accepted conn:        190460
296;   listen queue:         0
297;   max listen queue:     1
298;   listen queue len:     42
299;   idle processes:       4
300;   active processes:     11
301;   total processes:      15
302;   max active processes: 12
303;   max children reached: 0
304;
305; By default the status page output is formatted as text/plain. Passing either
306; 'html', 'xml' or 'json' in the query string will return the corresponding
307; output syntax. Example:
308;   http://www.foo.bar/status
309;   http://www.foo.bar/status?json
310;   http://www.foo.bar/status?html
311;   http://www.foo.bar/status?xml
312;
313; By default the status page only outputs short status. Passing 'full' in the
314; query string will also return status for each pool process.
315; Example:
316;   http://www.foo.bar/status?full
317;   http://www.foo.bar/status?json&full
318;   http://www.foo.bar/status?html&full
319;   http://www.foo.bar/status?xml&full
320; The Full status returns for each process:
321;   pid                  - the PID of the process;
322;   state                - the state of the process (Idle, Running, ...);
323;   start time           - the date and time the process has started;
324;   start since          - the number of seconds since the process has started;
325;   requests             - the number of requests the process has served;
326;   request duration     - the duration in µs of the requests;
327;   request method       - the request method (GET, POST, ...);
328;   request URI          - the request URI with the query string;
329;   content length       - the content length of the request (only with POST);
330;   user                 - the user (PHP_AUTH_USER) (or '-' if not set);
331;   script               - the main script called (or '-' if not set);
332;   last request cpu     - the %cpu the last request consumed
333;                          it's always 0 if the process is not in Idle state
334;                          because CPU calculation is done when the request
335;                          processing has terminated;
336;   last request memory  - the max amount of memory the last request consumed
337;                          it's always 0 if the process is not in Idle state
338;                          because memory calculation is done when the request
339;                          processing has terminated;
340; If the process is in Idle state, then informations are related to the
341; last request the process has served. Otherwise informations are related to
342; the current request being served.
343; Example output:
344;   ************************
345;   pid:                  31330
346;   state:                Running
347;   start time:           01/Jul/2011:17:53:49 +0200
348;   start since:          63087
349;   requests:             12808
350;   request duration:     1250261
351;   request method:       GET
352;   request URI:          /test_mem.php?N=10000
353;   content length:       0
354;   user:                 -
355;   script:               /home/fat/web/docs/php/test_mem.php
356;   last request cpu:     0.00
357;   last request memory:  0
358;
359; Note: There is a real-time FPM status monitoring sample web page available
360;       It's available in: @EXPANDED_DATADIR@/fpm/status.html
361;
362; Note: The value must start with a leading slash (/). The value can be
363;       anything, but it may not be a good idea to use the .php extension or it
364;       may conflict with a real PHP file.
365; Default Value: not set
366;pm.status_path = /status
367
368; The ping URI to call the monitoring page of FPM. If this value is not set, no
369; URI will be recognized as a ping page. This could be used to test from outside
370; that FPM is alive and responding, or to
371; - create a graph of FPM availability (rrd or such);
372; - remove a server from a group if it is not responding (load balancing);
373; - trigger alerts for the operating team (24/7).
374; Note: The value must start with a leading slash (/). The value can be
375;       anything, but it may not be a good idea to use the .php extension or it
376;       may conflict with a real PHP file.
377; Default Value: not set
378;ping.path = /ping
379
380; This directive may be used to customize the response of a ping request. The
381; response is formatted as text/plain with a 200 response code.
382; Default Value: pong
383;ping.response = pong
384
385; The access log file
386; Default: not set
387;access.log = log/$pool.access.log
388
389; The access log format.
390; The following syntax is allowed
391;  %%: the '%' character
392;  %C: %CPU used by the request
393;      it can accept the following format:
394;      - %{user}C for user CPU only
395;      - %{system}C for system CPU only
396;      - %{total}C  for user + system CPU (default)
397;  %d: time taken to serve the request
398;      it can accept the following format:
399;      - %{seconds}d (default)
400;      - %{miliseconds}d
401;      - %{mili}d
402;      - %{microseconds}d
403;      - %{micro}d
404;  %e: an environment variable (same as $_ENV or $_SERVER)
405;      it must be associated with embraces to specify the name of the env
406;      variable. Some exemples:
407;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
408;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
409;  %f: script filename
410;  %l: content-length of the request (for POST request only)
411;  %m: request method
412;  %M: peak of memory allocated by PHP
413;      it can accept the following format:
414;      - %{bytes}M (default)
415;      - %{kilobytes}M
416;      - %{kilo}M
417;      - %{megabytes}M
418;      - %{mega}M
419;  %n: pool name
420;  %o: output header
421;      it must be associated with embraces to specify the name of the header:
422;      - %{Content-Type}o
423;      - %{X-Powered-By}o
424;      - %{Transfert-Encoding}o
425;      - ....
426;  %p: PID of the child that serviced the request
427;  %P: PID of the parent of the child that serviced the request
428;  %q: the query string
429;  %Q: the '?' character if query string exists
430;  %r: the request URI (without the query string, see %q and %Q)
431;  %R: remote IP address
432;  %s: status (response code)
433;  %t: server time the request was received
434;      it can accept a strftime(3) format:
435;      %d/%b/%Y:%H:%M:%S %z (default)
436;  %T: time the log has been written (the request has finished)
437;      it can accept a strftime(3) format:
438;      %d/%b/%Y:%H:%M:%S %z (default)
439;  %u: remote user
440;
441; Default: "%R - %u %t \"%m %r\" %s"
442;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"
443
444; The log file for slow requests
445; Default Value: not set
446; Note: slowlog is mandatory if request_slowlog_timeout is set
447;slowlog = log/$pool.log.slow
448
449; The timeout for serving a single request after which a PHP backtrace will be
450; dumped to the 'slowlog' file. A value of '0s' means 'off'.
451; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
452; Default Value: 0
453;request_slowlog_timeout = 0
454
455; The timeout for serving a single request after which the worker process will
456; be killed. This option should be used when the 'max_execution_time' ini option
457; does not stop script execution for some reason. A value of '0' means 'off'.
458; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
459; Default Value: 0
460;request_terminate_timeout = 0
461
462; Set open file descriptor rlimit.
463; Default Value: system defined value
464;rlimit_files = 1024
465
466; Set max core size rlimit.
467; Possible Values: 'unlimited' or an integer greater or equal to 0
468; Default Value: system defined value
469;rlimit_core = 0
470
471; Chroot to this directory at the start. This value must be defined as an
472; absolute path. When this value is not set, chroot is not used.
473; Note: you can prefix with '$prefix' to chroot to the pool prefix or one
474; of its subdirectories. If the pool prefix is not set, the global prefix
475; will be used instead.
476; Note: chrooting is a great security feature and should be used whenever
477;       possible. However, all PHP paths will be relative to the chroot
478;       (error_log, sessions.save_path, ...).
479; Default Value: not set
480;chroot =
481
482; Chdir to this directory at the start.
483; Note: relative path can be used.
484; Default Value: current directory or / when chroot
485;chdir = /var/www
486
487; Redirect worker stdout and stderr into main error log. If not set, stdout and
488; stderr will be redirected to /dev/null according to FastCGI specs.
489; Note: on highloaded environement, this can cause some delay in the page
490; process time (several ms).
491; Default Value: no
492;catch_workers_output = yes
493
494; Clear environment in FPM workers
495; Prevents arbitrary environment variables from reaching FPM worker processes
496; by clearing the environment in workers before env vars specified in this
497; pool configuration are added.
498; Setting to "no" will make all environment variables available to PHP code
499; via getenv(), $_ENV and $_SERVER.
500; Default Value: yes
501;clear_env = no
502
503; Limits the extensions of the main script FPM will allow to parse. This can
504; prevent configuration mistakes on the web server side. You should only limit
505; FPM to .php extensions to prevent malicious users to use other extensions to
506; exectute php code.
507; Note: set an empty value to allow all extensions.
508; Default Value: .php
509;security.limit_extensions = .php .php3 .php4 .php5
510
511; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
512; the current environment.
513; Default Value: clean env
514;env[HOSTNAME] = $HOSTNAME
515;env[PATH] = /usr/local/bin:/usr/bin:/bin
516;env[TMP] = /tmp
517;env[TMPDIR] = /tmp
518;env[TEMP] = /tmp
519
520; Additional php.ini defines, specific to this pool of workers. These settings
521; overwrite the values previously defined in the php.ini. The directives are the
522; same as the PHP SAPI:
523;   php_value/php_flag             - you can set classic ini defines which can
524;                                    be overwritten from PHP call 'ini_set'.
525;   php_admin_value/php_admin_flag - these directives won't be overwritten by
526;                                     PHP call 'ini_set'
527; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no.
528
529; Defining 'extension' will load the corresponding shared extension from
530; extension_dir. Defining 'disable_functions' or 'disable_classes' will not
531; overwrite previously defined php.ini values, but will append the new value
532; instead.
533
534; Note: path INI options can be relative and will be expanded with the prefix
535; (pool, global or @prefix@)
536
537; Default Value: nothing is defined by default except the values in php.ini and
538;                specified at startup with the -d argument
539;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f www@my.domain.com
540;php_flag[display_errors] = off
541;php_admin_value[error_log] = /var/log/fpm-php.www.log
542;php_admin_flag[log_errors] = on
543;php_admin_value[memory_limit] = 32M
544