我一直试图让PHP-fpm（w Nginx）与默认端口（9000）一起工作，它只是不工作。我试图使用PHP 7.1（也试过7.0和5.6）。 服务启动正常，我也可以看到端口打开，并在ss / netstat中监听。 在PHP-fpm日志中没有错误。 最初我以为它可能是一个Nginx问题，但是当我尝试直接使用cgi-fcgi -bind -connect 127.0.0.1:9000来testing连接时，它只是不响应，最终得到一个无法连接的错误。 该请求不会logging在访问日志中（当访问日志启用时）。
# cgi-fcgi -bind -connect 127.0.0.1:9000 Could not connect to 127.0.0.1:9000
有些时候重新启动后，它只是随机工作几个请求（有时一个请求，有时10，不同），然后它只是停止工作了。 PHP-fpm状态下的请求计数不再增加。 它的行为没有韵律或节奏，我甚至找不到一致的方法让它工作，即使是那些less数的要求。
这个问题已经困扰了我两天了，而且它与原木中的任何东西都不一致。 请帮忙。 感谢提前回复。
我到目前为止所尝试的 –
用Nginx进行testing，确保它不是cgi-fcgi问题。 在Nginx中同样的问题也无法连接到上游。
设置PHP-fpm日志级别进行debugging，看看是否有东西popup。 没有什么不寻常的发现。
启用访问日志来查看请求是否达到PHP-fpm。 访问日志中没有input失败的请求。
将监听值更改为9000和0.0.0.0:9000以及external_ip：9000。 所有这些变化都没有改变行为。
更改为其他端口，以确保它不是正在使用的端口号。
增加和减lesspm.start_servers以及其他相关值，以检查其进程是否用完。 没有效果，事实上所有的进程只是闲置的时间。
重置configuration，以确保它不是一个configuration问题
从remi repo而不是webstatic repo安装PHP-fpm，以确保它不是一个糟糕的构build
降级到PHP 7.0
停止所有其他服务，以确保没有冲突或类似
将listen.allowed_clients更改为“any”，以确保它的客户端不被拒绝
删除了服务器并重新安装了操作系统本身，以确保它连续两天尝试多个事情后不会出现操作系统问题。 （没有数据的空服务器）
它使用unix套接字而不是端口工作得很好。 但是套接字不能满足要求，因为它需要从MysqL获得超过100行的内容，我注意到它只是在套接字模式下超时（> 30s）。
信息和configuration在下面
列出具有指定深度的文件夹的所有子目录
如何在Perl中检查已安装的Apache模块？
PHP网站和Nodejs应用程序在相同的VPS
Centos 7.0更新命令不起作用
操作系统 – CentOS 7
PHP-FPM服务状态
#service PHP-fpm status Redirecting to /bin/systemctl status PHP-fpm.service * PHP-fpm.service - The PHP FastCGI Process Manager Loaded: loaded (/usr/lib/systemd/system/PHP-fpm.service; disabled; vendor preset: disabled) Active: active (running) since Sun 2017-04-16 17:12:06 EDT; 14s ago Main PID: 2392 (PHP-fpm) Status: "Processes active: 0,idle: 5,Requests: 0,slow: 0,Traffic: 0req/sec" CGroup: /system.slice/PHP-fpm.service |-2392 PHP-fpm: master process (/etc/PHP-fpm.conf) |-2393 PHP-fpm: pool www |-2394 PHP-fpm: pool www |-2395 PHP-fpm: pool www |-2396 PHP-fpm: pool www `-2397 PHP-fpm: pool www Apr 16 17:12:06 2740.servermania.com systemd[1]: Starting The PHP FastCGI Pr.... Apr 16 17:12:06 2740.servermania.com systemd[1]: Started The PHP FastCGI Pro.... Hint: Some lines were ellipsized,use -l to show in full.
Socketstat / netstat。 （最后一个是PHP-fpm）
# ss -tapn State Recv-Q Send-Q Local Address:Port Peer Address:Port Cannot open netlink socket: Protocol not supported LISTEN 0 0 *:111 *:* users:(("rpcbind",pid=1588,fd=4),("systemd",pid=1,fd=42)) LISTEN 0 0 *:80 *:* users:(("httpd",pid=1871,fd=3),("httpd",pid=1870,fd=3)) LISTEN 0 0 *:22 *:* users:(("sshd",pid=1512,fd=3)) LISTEN 0 0 127.0.0.1:25 *:* users:(("sendmail",pid=416,fd=4)) LISTEN 0 0 127.0.0.1:9000 *:* users:(("PHP-fpm",pid=2397,fd=0),("PHP-fpm",pid=2396,pid=2395,pid=2394,pid=2393,pid=2392,fd=6))
我目前正在尝试使用默认的PHP-fpmconfiguration（我的configuration不工作，因此试图让它在默认状态下工作）。
; Start a new pool named 'www'. [www]
; Start a new pool named 'www'. [www]
; 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 Choosed to be able to access some dir as httpd user = 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 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: 511 (-1 on FreeBSD and OpenBSD) ;listen.backlog = 511 ; 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. Many ; BSD-derived systems allow connections regardless of permissions. ; 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 = ;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: any listen.allowed_clients = any ; 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. ; Note: Used when pm is set to 'static','dynamic' or 'ondemand' ; Note: This value is mandatory. pm.max_children = 50 ; 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) / 2 pm.start_servers = 5 ; 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 = 5 ; 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 = 35 ; 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: 0 ;pm.max_requests = 500 ; 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 袖s 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 = /var/log/PHP-fpm/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) ; The strftime(3) format must be encapsuled in a %{<strftime_format>}t tag ; eg for a ISO8601 formatted timestring,use: %{%Y-%m-%dT%H:%M:%s%z}t ; %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) ; The strftime(3) format must be encapsuled in a %{<strftime_format>}t tag ; eg for a ISO8601 formatted timestring,use: %{%Y-%m-%dT%H:%M:%s%z}t ; %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 set slowlog = /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: 0 ;request_slowlog_timeout = 0 ; 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),or d(ays) ; Default Value: 0 ;request_terminate_timeout = 0 ; 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: 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 .PHP7 ; 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,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. ; 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] = off PHP_admin_value[error_log] = /var/log/PHP-fpm/www-error.log PHP_admin_flag[log_errors] = on ;PHP_admin_value[memory_limit] = 128M ; Set session path to a directory owned by process user PHP_value[session.save_handler] = files PHP_value[session.save_path] = /var/lib/PHP/session PHP_value[soap.wsdl_cache_dir] = /var/lib/PHP/wsdlcache
[16-Apr-2017 17:12:06] NOTICE: fpm is running,pid 2392 [16-Apr-2017 17:12:06] NOTICE: ready to handle connections [16-Apr-2017 17:12:06] NOTICE: systemd monitor interval set to 10000ms
Telnet输出
# telnet 127.0.0.1 9000 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection timed out
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