How to configure php-fpm file

小云云
Release: 2023-03-22 14:26:01
Original
3027 people have browsed it

This article mainly shares with you how to configure the php-fpm file. I hope it can help you.

Part 1: FPM configuration

Parameters| Description

-p      | Dynamically modify --prefix in the command line   

;include=etc/fpm. d/*.conf | Used to include one or more files, if glob(3) exists (glob() function returns the file name or directory matching the specified pattern)

Part 2: Global Configuration

Start with the flag [global]:

;pid = run/php-fpm.pid      设置pid文件的位置,默认目录路径 /usr/local/php/var;error_log = log/php-fpm.log  记录错误日志的文件,默认目录路径 /usr/local/php/var;syslog.facility = daemon    用于指定什么类型的程序日志消息。;syslog.ident = php-fpm      用于FPM多实例甄别;log_level = notice        记录日志的等级,默认notice,可取值alert, error, warning, notice, debug;emergency_restart_threshold = 0 如果子进程在这个时间段内带有IGSEGV或SIGBUS退出,则重启fpm,默认0表示关闭这个功能;emergency_restart_interval = 0 设置时间间隔来决定服务的初始化时间(默认单位:s秒),可选s秒,m分,h时,d天;process_control_timeout = 0    子进程等待master进程对信号的回应(默认单位:s秒),可选s秒,m分,h时,d天; process.max = 128         控制最大进程数,使用时需谨慎; process.priority = -19      处理nice(2)的进程优先级别-19(最高)到20(最低);rlimit_files = 1024        设置主进程文件描述符rlimit的数量;rlimit_core = 0           设置主进程rlimit最大核数;events.mechanism = epoll     使用处理event事件的机制  ; - select     (any POSIX os)  ; - poll       (any POSIX os)  ; - epoll      (linux >= 2.5.44)  ; - kqueue     (FreeBSD >= 4.1, OpenBSD >= 2.9, NetBSD >= 2.0)  ; - /dev/poll  (Solaris >= 7)  ; - port       (Solaris >= 10);daemonize = yes           将fpm转至后台运行,如果设置为“no”,那么fpm会运行在前台;systemd_interval = 10
第三部分:进程池的定义
通过监听不同的端口和不用管理选择可以定义多个不同的子进程池,进程池被用与记录和统计,对于fpm能够处理进程池数目的多少并没有限制
其中$pool变量可以在任何指令中使用,他将会替代相应的进程池名字。例如:这里的[www]
[root@test ~]# ps -ef | grep php-fpmroot      3028     1  0 20:33 ?        00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)nobody    3029  3028  0 20:33 ?        00:00:00 php-fpm: pool www          nobody    3030  3028  0 20:33 ?        00:00:00 php-fpm: pool www
Copy after login
[www]
; It only applies on the following directives:; - 'access.log'; - 'slowlog'; - 'listen' (unixsocket)
; - 'chroot'; - 'chdir'; - 'php_values'; - 'php_admin_values';prefix = /path/to/pools/$pool   如果没有制定,将使用全局prefix替代
user = nobody             进程的发起用户和用户组,用户user是必须设置,group不是
group = nobody
listen = 127.0.0.1:9000       监听ip和端口
;listen.backlog = 65535       设置listen(2)函数backlog
;listen.owner = nobody
;listen.group = nobody
;listen.mode = 0660
;listen.acl_users =
;listen.acl_groups =
;listen.allowed_clients = 127.0.0.1 允许FastCGI客户端连接的IPv4地址,多个地址用','分隔,为空则允许任何地址发来链接请求
; process.priority = -19
pm = dynamic              选择进程池管理器如何控制子进程的数量
  static:  对于子进程的开启数路给定一个锁定的值(pm.max_children)
  dynamic:  子进程的数目为动态的,它的数目基于下面的指令的值(以下为dynamic适用参数)
    pm.max_children:  同一时刻能够存货的最大子进程的数量
    pm.start_servers: 在启动时启动的子进程数量
    pm.min_spare_servers: 处于空闲"idle"状态的最小子进程,如果空闲进程数量小于这个值,那么相应的子进程会被创建
    pm.max_spare_servers: 最大空闲子进程数量,空闲子进程数量超过这个值,那么相应的子进程会被杀掉。
  ondemand: 在启动时不会创建,只有当发起请求链接时才会创建(pm.max_children, pm.process_idle_timeout)
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
;pm.process_idle_timeout = 10s;  空闲进程超时时间
;pm.max_requests = 500        在派生新的子进程前,每一个子进程应该处理的请求数目,在第三方库中解决内存溢出很有用,设置为0则不会限制
;pm.status_path = /status        配置一个URI,以便查看fpm状态页
状态页描述:
  accepted conn: 该进程池接受的请求数量
  pool: 进程池的名字
  process manager: 进程管理,就是配置中pm指令,可以选择值static,dynamic,ondemand
  idle processes: 空闲进程数量
  active processes: 当前活跃的进程数量
  total processes: 总的进程数量=idle+active
  max children reached: 达到最大子进程的次数,达到进程的限制,当pm试图开启更多的子进程的时候(仅当pm工作在dynamic时)
;ping.path = /ping    该ping URI将会去调用fpm监控页面,如果这个没有设置,那么不会有URI被做为ping页
;ping.response = pong  用于定制平请求的响应,响应的格式text/plain(对200响应代码)
;access.log = log/$pool.access.log
;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"
  ; 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 $_SERVER)
  ;      it must be associated with embraces to specify the name of the env
  ;      variable. Some exemples:
  ;      - server specifics like: %{REQUEST_METHOD}e or %{SERVER_PROTOCOL}e
  ;      - HTTP headers like: %{HTTP_HOST}e or %{HTTP_USER_AGENT}e
  ;  %f: script filename
  ;  %l: content-length of the request (for POST request only)
  ;  %m: request method
  ;  %M: peak of memory allocated by PHP
  ;      it can accept the following format:
  ;      - %{bytes}M (default)
  ;      - %{kilobytes}M
  ;      - %{kilo}M
  ;      - %{megabytes}M
  ;      - %{mega}M
  ;  %n: pool name
  ;  %o: output header
  ;      it must be associated with embraces to specify the name of the header:
  ;      - %{Content-Type}o
  ;      - %{X-Powered-By}o
  ;      - %{Transfert-Encoding}o
  ;      - ....
  ;  %p: PID of the child that serviced the request
  ;  %P: PID of the parent of the child that serviced the request
  ;  %q: the query string
  ;  %Q: the '?' character if query string exists
  ;  %r: the request URI (without the query string, see %q and %Q)
  ;  %R: remote IP address
  ;  %s: status (response code)
  ;  %t: server time the request was received
  ;      it can accept a strftime(3) format:
  ;      %d/%b/%Y:%H:%M:%S %z (default)
  ;  %T: time the log has been written (the request has finished)
  ;      it can accept a strftime(3) format:
  ;      %d/%b/%Y:%H:%M:%S %z (default)
  ;  %u: remote user
;slowlog = log/$pool.log.slow   用于记录慢请求
;request_slowlog_timeout = 0    慢日志请求超时时间,对一个php程序进行跟踪。
;request_terminate_timeout = 0  终止请求超时时间,在worker进程被杀掉之后,提供单个请求的超时间隔。由于某种原因不停止脚本执行时,应该使用该选项,0表示关闭不启用
  (在php.ini中,max_execution_time 一般设置为30,表示每一个脚本的最大执行时间)
;rlimit_files = 1024        设置打开文件描述符的限制
;rlimit_core = 0           设置内核对资源的使用限制,用于内核转储
;chroot =               设置chroot路径,程序一启动就将其chroot放置到指定的目录下,该指令值必须是一个绝对路径
;chdir = /var/www          在程序启动时将会改变到指定的位置(这个是相对路径,相对当前路径或chroot后的“/”目录)    
;catch_workers_output = yes    将worker的标准输出和错误输出重定向到主要的错误日志记录中,如果没有设置,根据FastCGI的指定,将会被重定向到/dev/null上
;clear_env = no            清理环境
;security.limit_extensions = .php .php3 .php4 .php5  限制FPM执行解析的扩展名
;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.
;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f www@my.domain.com
;php_flag[display_errors] = off
;php_admin_value[error_log] = /var/log/fpm-php.www.log
;php_admin_flag[log_errors] = on
;php_admin_value[memory_limit] = 32M
Copy after login

Summary

1) In the configuration file of php-fpm, there are two very important instructions, namely "pm.max_children" and "request_terminate_timeout"

The first instruction "pm.max_children" determines the processing capacity of php-fpm. In principle, the more the better, but this is based on the premise that the memory is sufficient. Every time a php is opened -The fpm process takes up nearly 30M of memory

If there are many requests for access, 502 and 504 errors may occur. For 502 errors, it is caused by a busy process. For 504, it means that the request sent by the customer did not get a response within the limited time. Too many requests lead to "504 Gateway Time-out". There may also be a server bandwidth issue here.

Another instruction that needs attention is "request_terminate_timeout", which determines the connection/sending and reading time of the php-fpm process. If the setting is too small, it is easy to appear "502 Bad Gateway" and "504 Gateway Time- out", the default is 0, which means it is not enabled and there is no restriction. However, the premise of this setting is that your php-fpm is healthy enough. This needs to be limited according to the actual situation.

The above is the detailed content of How to configure php-fpm file. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!