xref: /PHP-5.3/sapi/fpm/php-fpm.conf.in (revision 8a22540a)
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 dynamicaly 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 arguement)
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;;;;;;;;;;;;;;;;;;;;
111; Pool Definitions ;
112;;;;;;;;;;;;;;;;;;;;
113
114; Multiple pools of child processes may be started with different listening
115; ports and different management options.  The name of the pool will be
116; used in logs and stats. There is no limitation on the number of pools which
117; FPM can handle. Your system will tell you anyway :)
118
119; Start a new pool named 'www'.
120; the variable $pool can we used in any directive and will be replaced by the
121; pool name ('www' here)
122[www]
123
124; Per pool prefix
125; It only applies on the following directives:
126; - 'slowlog'
127; - 'listen' (unixsocket)
128; - 'chroot'
129; - 'chdir'
130; - 'php_values'
131; - 'php_admin_values'
132; When not set, the global prefix (or @php_fpm_prefix@) applies instead.
133; Note: This directive can also be relative to the global prefix.
134; Default Value: none
135;prefix = /path/to/pools/$pool
136
137; Unix user/group of processes
138; Note: The user is mandatory. If the group is not set, the default user's group
139;       will be used.
140user = @php_fpm_user@
141group = @php_fpm_group@
142
143; The address on which to accept FastCGI requests.
144; Valid syntaxes are:
145;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific address on
146;                            a specific port;
147;   'port'                 - to listen on a TCP socket to all addresses on a
148;                            specific port;
149;   '/path/to/unix/socket' - to listen on a unix socket.
150; Note: This value is mandatory.
151listen = 127.0.0.1:9000
152
153; Set listen(2) backlog. A value of '-1' means unlimited.
154; Default Value: 128 (-1 on FreeBSD and OpenBSD)
155;listen.backlog = -1
156
157; Set permissions for unix socket, if one is used. In Linux, read/write
158; permissions must be set in order to allow connections from a web server. Many
159; BSD-derived systems allow connections regardless of permissions.
160; Default Values: user and group are set as the running user
161;                 mode is set to 0660
162;listen.owner = @php_fpm_user@
163;listen.group = @php_fpm_group@
164;listen.mode = 0660
165
166; List of ipv4 addresses of FastCGI clients which are allowed to connect.
167; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original
168; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address
169; must be separated by a comma. If this value is left blank, connections will be
170; accepted from any ip address.
171; Default Value: any
172;listen.allowed_clients = 127.0.0.1
173
174; Specify the nice(2) priority to apply to the pool processes (only if set)
175; The value can vary from -19 (highest priority) to 20 (lower priority)
176; Note: - It will only work if the FPM master process is launched as root
177;       - The pool processes will inherit the master process priority
178;         unless it specified otherwise
179; Default Value: no set
180; priority = -19
181
182; Choose how the process manager will control the number of child processes.
183; Possible Values:
184;   static  - a fixed number (pm.max_children) of child processes;
185;   dynamic - the number of child processes are set dynamically based on the
186;             following directives. With this process management, there will be
187;             always at least 1 children.
188;             pm.max_children      - the maximum number of children that can
189;                                    be alive at the same time.
190;             pm.start_servers     - the number of children created on startup.
191;             pm.min_spare_servers - the minimum number of children in 'idle'
192;                                    state (waiting to process). If the number
193;                                    of 'idle' processes is less than this
194;                                    number then some children will be created.
195;             pm.max_spare_servers - the maximum number of children in 'idle'
196;                                    state (waiting to process). If the number
197;                                    of 'idle' processes is greater than this
198;                                    number then some children will be killed.
199;  ondemand - no children are created at startup. Children will be forked when
200;             new requests will connect. The following parameter are used:
201;             pm.max_children           - the maximum number of children that
202;                                         can be alive at the same time.
203;             pm.process_idle_timeout   - The number of seconds after which
204;                                         an idle process will be killed.
205; Note: This value is mandatory.
206pm = dynamic
207
208; The number of child processes to be created when pm is set to 'static' and the
209; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
210; This value sets the limit on the number of simultaneous requests that will be
211; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
212; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
213; CGI. The below defaults are based on a server without much resources. Don't
214; forget to tweak pm.* to fit your needs.
215; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'
216; Note: This value is mandatory.
217pm.max_children = 5
218
219; The number of child processes created on startup.
220; Note: Used only when pm is set to 'dynamic'
221; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
222pm.start_servers = 2
223
224; The desired minimum number of idle server processes.
225; Note: Used only when pm is set to 'dynamic'
226; Note: Mandatory when pm is set to 'dynamic'
227pm.min_spare_servers = 1
228
229; The desired maximum number of idle server processes.
230; Note: Used only when pm is set to 'dynamic'
231; Note: Mandatory when pm is set to 'dynamic'
232pm.max_spare_servers = 3
233
234; The number of seconds after which an idle process will be killed.
235; Note: Used only when pm is set to 'ondemand'
236; Default Value: 10s
237;pm.process_idle_timeout = 10s;
238
239; The number of requests each child process should execute before respawning.
240; This can be useful to work around memory leaks in 3rd party libraries. For
241; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS.
242; Default Value: 0
243;pm.max_requests = 500
244
245; The URI to view the FPM status page. If this value is not set, no URI will be
246; recognized as a status page. It shows the following informations:
247;   pool                 - the name of the pool;
248;   process manager      - static, dynamic or ondemand;
249;   start time           - the date and time FPM has started;
250;   start since          - number of seconds since FPM has started;
251;   accepted conn        - the number of request accepted by the pool;
252;   listen queue         - the number of request in the queue of pending
253;                          connections (see backlog in listen(2));
254;   max listen queue     - the maximum number of requests in the queue
255;                          of pending connections since FPM has started;
256;   listen queue len     - the size of the socket queue of pending connections;
257;   idle processes       - the number of idle processes;
258;   active processes     - the number of active processes;
259;   total processes      - the number of idle + active processes;
260;   max active processes - the maximum number of active processes since FPM
261;                          has started;
262;   max children reached - number of times, the process limit has been reached,
263;                          when pm tries to start more children (works only for
264;                          pm 'dynamic' and 'ondemand');
265; Value are updated in real time.
266; Example output:
267;   pool:                 www
268;   process manager:      static
269;   start time:           01/Jul/2011:17:53:49 +0200
270;   start since:          62636
271;   accepted conn:        190460
272;   listen queue:         0
273;   max listen queue:     1
274;   listen queue len:     42
275;   idle processes:       4
276;   active processes:     11
277;   total processes:      15
278;   max active processes: 12
279;   max children reached: 0
280;
281; By default the status page output is formatted as text/plain. Passing either
282; 'html', 'xml' or 'json' in the query string will return the corresponding
283; output syntax. Example:
284;   http://www.foo.bar/status
285;   http://www.foo.bar/status?json
286;   http://www.foo.bar/status?html
287;   http://www.foo.bar/status?xml
288;
289; By default the status page only outputs short status. Passing 'full' in the
290; query string will also return status for each pool process.
291; Example:
292;   http://www.foo.bar/status?full
293;   http://www.foo.bar/status?json&full
294;   http://www.foo.bar/status?html&full
295;   http://www.foo.bar/status?xml&full
296; The Full status returns for each process:
297;   pid                  - the PID of the process;
298;   state                - the state of the process (Idle, Running, ...);
299;   start time           - the date and time the process has started;
300;   start since          - the number of seconds since the process has started;
301;   requests             - the number of requests the process has served;
302;   request duration     - the duration in µs of the requests;
303;   request method       - the request method (GET, POST, ...);
304;   request URI          - the request URI with the query string;
305;   content length       - the content length of the request (only with POST);
306;   user                 - the user (PHP_AUTH_USER) (or '-' if not set);
307;   script               - the main script called (or '-' if not set);
308;   last request cpu     - the %cpu the last request consumed
309;                          it's always 0 if the process is not in Idle state
310;                          because CPU calculation is done when the request
311;                          processing has terminated;
312;   last request memory  - the max amount of memory the last request consumed
313;                          it's always 0 if the process is not in Idle state
314;                          because memory calculation is done when the request
315;                          processing has terminated;
316; If the process is in Idle state, then informations are related to the
317; last request the process has served. Otherwise informations are related to
318; the current request being served.
319; Example output:
320;   ************************
321;   pid:                  31330
322;   state:                Running
323;   start time:           01/Jul/2011:17:53:49 +0200
324;   start since:          63087
325;   requests:             12808
326;   request duration:     1250261
327;   request method:       GET
328;   request URI:          /test_mem.php?N=10000
329;   content length:       0
330;   user:                 -
331;   script:               /home/fat/web/docs/php/test_mem.php
332;   last request cpu:     0.00
333;   last request memory:  0
334;
335; Note: There is a real-time FPM status monitoring sample web page available
336;       It's available in: @EXPANDED_DATADIR@/fpm/status.html
337;
338; Note: The value must start with a leading slash (/). The value can be
339;       anything, but it may not be a good idea to use the .php extension or it
340;       may conflict with a real PHP file.
341; Default Value: not set
342;pm.status_path = /status
343
344; The ping URI to call the monitoring page of FPM. If this value is not set, no
345; URI will be recognized as a ping page. This could be used to test from outside
346; that FPM is alive and responding, or to
347; - create a graph of FPM availability (rrd or such);
348; - remove a server from a group if it is not responding (load balancing);
349; - trigger alerts for the operating team (24/7).
350; Note: The value must start with a leading slash (/). The value can be
351;       anything, but it may not be a good idea to use the .php extension or it
352;       may conflict with a real PHP file.
353; Default Value: not set
354;ping.path = /ping
355
356; This directive may be used to customize the response of a ping request. The
357; response is formatted as text/plain with a 200 response code.
358; Default Value: pong
359;ping.response = pong
360
361; The access log file
362; Default: not set
363;access.log = log/$pool.access.log
364
365; The access log format.
366; The following syntax is allowed
367;  %%: the '%' character
368;  %C: %CPU used by the request
369;      it can accept the following format:
370;      - %{user}C for user CPU only
371;      - %{system}C for system CPU only
372;      - %{total}C  for user + system CPU (default)
373;  %d: time taken to serve the request
374;      it can accept the following format:
375;      - %{seconds}d (default)
376;      - %{miliseconds}d
377;      - %{mili}d
378;      - %{microseconds}d
379;      - %{micro}d
380;  %e: an environment variable (same as $_ENV or $_SERVER)
381;      it must be associated with embraces to specify the name of the env
382;      variable. Some exemples:
383;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
384;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
385;  %f: script filename
386;  %l: content-length of the request (for POST request only)
387;  %m: request method
388;  %M: peak of memory allocated by PHP
389;      it can accept the following format:
390;      - %{bytes}M (default)
391;      - %{kilobytes}M
392;      - %{kilo}M
393;      - %{megabytes}M
394;      - %{mega}M
395;  %n: pool name
396;  %o: ouput header
397;      it must be associated with embraces to specify the name of the header:
398;      - %{Content-Type}o
399;      - %{X-Powered-By}o
400;      - %{Transfert-Encoding}o
401;      - ....
402;  %p: PID of the child that serviced the request
403;  %P: PID of the parent of the child that serviced the request
404;  %q: the query string
405;  %Q: the '?' character if query string exists
406;  %r: the request URI (without the query string, see %q and %Q)
407;  %R: remote IP address
408;  %s: status (response code)
409;  %t: server time the request was received
410;      it can accept a strftime(3) format:
411;      %d/%b/%Y:%H:%M:%S %z (default)
412;  %T: time the log has been written (the request has finished)
413;      it can accept a strftime(3) format:
414;      %d/%b/%Y:%H:%M:%S %z (default)
415;  %u: remote user
416;
417; Default: "%R - %u %t \"%m %r\" %s"
418;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"
419
420; The log file for slow requests
421; Default Value: not set
422; Note: slowlog is mandatory if request_slowlog_timeout is set
423;slowlog = log/$pool.log.slow
424
425; The timeout for serving a single request after which a PHP backtrace will be
426; dumped to the 'slowlog' file. A value of '0s' means 'off'.
427; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
428; Default Value: 0
429;request_slowlog_timeout = 0
430
431; The timeout for serving a single request after which the worker process will
432; be killed. This option should be used when the 'max_execution_time' ini option
433; does not stop script execution for some reason. A value of '0' means 'off'.
434; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
435; Default Value: 0
436;request_terminate_timeout = 0
437
438; Set open file descriptor rlimit.
439; Default Value: system defined value
440;rlimit_files = 1024
441
442; Set max core size rlimit.
443; Possible Values: 'unlimited' or an integer greater or equal to 0
444; Default Value: system defined value
445;rlimit_core = 0
446
447; Chroot to this directory at the start. This value must be defined as an
448; absolute path. When this value is not set, chroot is not used.
449; Note: you can prefix with '$prefix' to chroot to the pool prefix or one
450; of its subdirectories. If the pool prefix is not set, the global prefix
451; will be used instead.
452; Note: chrooting is a great security feature and should be used whenever
453;       possible. However, all PHP paths will be relative to the chroot
454;       (error_log, sessions.save_path, ...).
455; Default Value: not set
456;chroot =
457
458; Chdir to this directory at the start.
459; Note: relative path can be used.
460; Default Value: current directory or / when chroot
461;chdir = /var/www
462
463; Redirect worker stdout and stderr into main error log. If not set, stdout and
464; stderr will be redirected to /dev/null according to FastCGI specs.
465; Note: on highloaded environement, this can cause some delay in the page
466; process time (several ms).
467; Default Value: no
468;catch_workers_output = yes
469
470; Limits the extensions of the main script FPM will allow to parse. This can
471; prevent configuration mistakes on the web server side. You should only limit
472; FPM to .php extensions to prevent malicious users to use other extensions to
473; exectute php code.
474; Note: set an empty value to allow all extensions.
475; Default Value: .php
476;security.limit_extensions = .php .php3 .php4 .php5
477
478; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
479; the current environment.
480; Default Value: clean env
481;env[HOSTNAME] = $HOSTNAME
482;env[PATH] = /usr/local/bin:/usr/bin:/bin
483;env[TMP] = /tmp
484;env[TMPDIR] = /tmp
485;env[TEMP] = /tmp
486
487; Additional php.ini defines, specific to this pool of workers. These settings
488; overwrite the values previously defined in the php.ini. The directives are the
489; same as the PHP SAPI:
490;   php_value/php_flag             - you can set classic ini defines which can
491;                                    be overwritten from PHP call 'ini_set'.
492;   php_admin_value/php_admin_flag - these directives won't be overwritten by
493;                                     PHP call 'ini_set'
494; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no.
495
496; Defining 'extension' will load the corresponding shared extension from
497; extension_dir. Defining 'disable_functions' or 'disable_classes' will not
498; overwrite previously defined php.ini values, but will append the new value
499; instead.
500
501; Note: path INI options can be relative and will be expanded with the prefix
502; (pool, global or @prefix@)
503
504; Default Value: nothing is defined by default except the values in php.ini and
505;                specified at startup with the -d argument
506;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f www@my.domain.com
507;php_flag[display_errors] = off
508;php_admin_value[error_log] = /var/log/fpm-php.www.log
509;php_admin_flag[log_errors] = on
510;php_admin_value[memory_limit] = 32M
511