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lnmp之php-fpm+nginx+ulimit的综合设置之故障排除

时间：2014-04-27 21:21:06      阅读：734      评论：0      收藏：0      [点我收藏+]

标签：linux   nginx   php   lnmp   php-fpm   


相信其它的地方大家都懂，这里重点说下面粗体注释标注部分 参数设置必须与系统的 ulimit -Sn 参数一致，并且 php-fpm.conf,nginx,conf中的设置要一致，否则会出现诸多历史遗留问题以及不和谐的ERROR WRING问题

以下是nginx.conf里的一些 配置信息，重点说红色部分

#user  nobody;

user www www;

worker_processes  auto;

#add by Happy; set the value == system‘s ulimit -sn ‘s value





#############################################

worker_rlimit_nofile  65535;

############################################

error_log  logs/error.log;

#error_log  logs/error.log  notice;

#error_log  logs/error.log  info;

pid        logs/nginx.pid;

events {

    # set by Happy; set the value == system‘s "ulimit -sn" is value

    # if use is epoll,the worker_connections 65535+1  but sys‘s ulimit -sn == 65536

############################################

    worker_connections  65535;

############################################

    multi_accept  on;

    use  epoll;

}









http {

    include       mime.types;

    default_type  application/octet-stream;

    # add by Happy 2014-04-18

    server_names_hash_bucket_size  128;

    client_header_buffer_size      32K;

    large_client_header_buffers    4 32k;

    # set user upload size

    client_max_body_size           8m;

    # add end 





    log_format  main  ‘$remote_addr - $remote_user [$time_local] "$request" ‘

                      ‘$status $body_bytes_sent "$http_referer" ‘

                      ‘"$http_user_agent" "$http_x_forwarded_for"‘;





    access_log  logs/access.log main;





    #display nginx version add this,

    #but you have set fastcgi.conf set 

    #fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;

    #fastcgi_param SERVER_SOFTWARE nginx;

    #this is by Happy set for 2014-04-19

    server_tokens off;





    sendfile       on;

    #tcp_nopush     on;

    tcp_nopush   on;

    tcp_nodelay    on;

    #add by Happy 2014-04-19

    fastcgi_connect_timeout    300;

    fastcgi_send_timeout       300;

    fastcgi_read_timeout       300;

    fastcgi_buffer_size        64k;

    fastcgi_buffers         4  64k;

    fastcgi_busy_buffers_size  128k;

    fastcgi_temp_file_write_size  128k;

    #keepalive_timeout  0;

    keepalive_timeout  60;

    client_header_timeout  10;

    client_body_timeout  10;

    #reset_timeout_connection  on;

    send_timeout  10;

    #set one ip link num and memory

    limit_conn_zone $binary_remote_addr zone=addr:5m;

    limit_conn addr 100;

    #open gzip by Happy

    gzip  on;

    gzip_disable      "msie6";

    gzip_proxied      any;

    gzip_min_length   1k;

    gzip_buffers      4  16k;

    #if you set squid2.x,please set 1.0

    #by Happy set 2014-04-19

    gzip_http_version 1.1; 

    gzip_comp_level   4;

    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    gzip_vary        on;

    ## add by Happy,set 2014-04-23

    #xian zhi dan ge IP  bing fa wei 10 ge

    limit_conn_zone  $binary_remote_addr zone=happy:10m;

    limit_conn happy 20;

    #xian zhi lian jie su du, da yu 1m de wen jian xian su 100k/s

    #if you user‘s one link down file‘s size > 1M,the set user one down is 100k/S

    limit_rate_after 1m;

    limit_rate       200k;

    #open_file_cache max=100000 inactive=60s;

    #open_file_cache_valid 65s;

    #open_file_cache_min_uses 2;

    #open_file_cache_errors off;





    server {

        listen       80 default;

        server_name  www.xxxx.cn xxx.cn;

#charset  utf-8;

        access_log  logs/host.access.log;





        location / {



            #root   html;

   root   /home/var/www;

   index  index.php index.html index.htm;

   if (!-e $request_filename) {

    rewrite ^(.*) /index.php last;

   }





}





        location ~* \.(?:gif|ico|jpe?g|png|swf|bmp|swf)$ {





            expires 30d;

            log_not_found off;

            ## No need to bleed constant updates. Send the all shebang in one

            #

            #    fell swoop.

            #

            tcp_nodelay off;

            #

            #    Set the OS file cache.

            #

            open_file_cache max=1000 inactive=120s;

            open_file_cache_valid 125s;

            open_file_cache_min_uses 2;

            open_file_cache_errors off;

   root /home/var/www;

            #

        }

        location ~* \.(js|css)$ {

            expires   1d;

            root /home/var/www;

        }

#error_page  404              /404.html;





        # redirect server error pages to the static page /50x.html

        #

        error_page   500 502 503 504  /50x.html;

        location = /50x.html {

            root   html;

        }





        # proxy the PHP scripts to Apache listening on 127.0.0.1:80

        #

        #location ~ \.php$ {

        #    proxy_pass   http://127.0.0.1;

        #}





        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

        #

        location ~ \.php$ {

   #root   html;

            root           /home/var/www;

            if (!-e $request_filename) {

                rewrite (.*) /index.php last;

   }

   fastcgi_pass   127.0.0.1:9000;

            fastcgi_index  index.php;

            #fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;

            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;

   include        fastcgi_params;

        }





        # deny access to .htaccess files, if Apache‘s document root

        # concurs with nginx‘s one

        #

        location ~ /\.ht {

            deny  all;

        }

location ~*\.(html|log|sh|bash)?$ {

   return 403;

}

        location ~ ^/home/var/www/MVC/ {

            deny  all;

            break;

        }

        #return 500; 

    }









    # another virtual host using mix of IP-, name-, and port-based configuration

    #

    #server {

    #    listen       8000;

    #    listen       somename:8080;

    #    server_name  somename  alias  another.alias;





    #    location / {

    #        root   html;

    #        index  index.html index.htm;

    #    }

    #}









    # HTTPS server

    #

    #server {

    #    listen       443;

    #    server_name  localhost;





    #    ssl                  on;

    #    ssl_certificate      cert.pem;

    #    ssl_certificate_key  cert.key;





    #    ssl_session_timeout  5m;





    #    ssl_protocols  SSLv2 SSLv3 TLSv1;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;

    #    ssl_prefer_server_ciphers   on;





    #    location / {

    #        root   html;

    #        index  index.html index.htm;

    #    }

    #}





}

PHP-FPM中的rlimit_files参数设置需同系统参数一致且同nginx 里的connections，rlimit参数相呼应，否则大流量并发下会出现如5xx,4xx等意象不到的错误状态

（这里只说红色粗体部分，其它的日后再解，相信大家一定也都懂得其它参数的设置）

;;;;;;;;;;;;;;;;;;;;;

; FPM Configuration ;

;;;;;;;;;;;;;;;;;;;;;





; All relative paths in this configuration file are relative to PHP‘s install

; prefix (/usr/local/php). This prefix can be dynamically changed by using the

; ‘-p‘ argument from the command line.





; Include one or more files. If glob(3) exists, it is used to include a bunch of

; files from a glob(3) pattern. This directive can be used everywhere in the

; file.

; Relative path can also be used. They will be prefixed by:

;  - the global prefix if it‘s been set (-p argument)

;  - /usr/local/php otherwise

;include=etc/fpm.d/*.conf





;;;;;;;;;;;;;;;;;;

; Global Options ;

;;;;;;;;;;;;;;;;;;





[global]

; Pid file

; Note: the default prefix is /usr/local/php/var

; Default Value: none

;default disabled,show 2014-04-18 by Happy

pid = run/php-fpm.pid





; Error log file

; If it‘s set to "syslog", log is sent to syslogd instead of being written

; in a local file.

; Note: the default prefix is /usr/local/php/var

; Default Value: log/php-fpm.log

;default disabled,show 2014-04-18 by Happy

error_log = log/php-fpm.log





; syslog_facility is used to specify what type of program is logging the

; message. This lets syslogd specify that messages from different facilities

; will be handled differently.

; See syslog(3) for possible values (ex daemon equiv LOG_DAEMON)

; Default Value: daemon

;syslog.facility = daemon





; syslog_ident is prepended to every message. If you have multiple FPM

; instances running on the same server, you can change the default value

; which must suit common needs.

; Default Value: php-fpm

;syslog.ident = php-fpm





; Log level

; Possible Values: alert, error, warning, notice, debug

; Default Value: notice

;default disabled,show 2014-04-18 by Happy

log_level = notice





; If this number of child processes exit with SIGSEGV or SIGBUS within the time

; interval set by emergency_restart_interval then FPM will restart. A value

; of ‘0‘ means ‘Off‘.

; Default Value: 0

;emergency_restart_threshold = 0





; Interval of time used by emergency_restart_interval to determine when 

; a graceful restart will be initiated.  This can be useful to work around

; accidental corruptions in an accelerator‘s shared memory.

; Available Units: s(econds), m(inutes), h(ours), or d(ays)

; Default Unit: seconds

; Default Value: 0

;emergency_restart_interval = 0





; Time limit for child processes to wait for a reaction on signals from master.

; Available units: s(econds), m(inutes), h(ours), or d(ays)

; Default Unit: seconds

; Default Value: 0

;default disabled,show 2014-04-18 by Happy 

;process_control_timeout = 0









; The maximum number of processes FPM will fork. This has been design to control

; the global number of processes when using dynamic PM within a lot of pools.

; Use it with caution.

; Note: A value of 0 indicates no limit

; Default Value: 0

; process.max = 128





; Specify the nice(2) priority to apply to the master process (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 process will inherit the master process priority

;         unless it specified otherwise

; Default Value: no set

; process.priority = -19





; Send FPM to background. Set to ‘no‘ to keep FPM in foreground for debugging.

; Default Value: yes

;hou tai zhixing php-fpm default disabled,show 2014-04-18 by Happy

daemonize = yes

 

; Set open file descriptor rlimit for the master process.

; Default Value: system defined value

;rlimit_files = 1024

 

; Set max core size rlimit for the master process.

; Possible Values: ‘unlimited‘ or an integer greater or equal to 0

; Default Value: system defined value

;rlimit_core = 0





; Specify the event mechanism FPM will use. The following is available:

; - 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)

; Default Value: not set (auto detection)

;events.mechanism = epoll





; When FPM is build with systemd integration, specify the interval,

; in second, between health report notification to systemd.

; Set to 0 to disable.

; Available Units: s(econds), m(inutes), h(ours)

; Default Unit: seconds

; Default value: 10

;systemd_interval = 10





;;;;;;;;;;;;;;;;;;;;

; Pool Definitions ; 

;;;;;;;;;;;;;;;;;;;;





; Multiple pools of child processes may be started with different listening

; ports and different management options.  The name of the pool will be

; used in logs and stats. There is no limitation on the number of pools which

; FPM can handle. Your system will tell you anyway :)





; Start a new pool named ‘www‘.

; the variable $pool can we used in any directive and will be replaced by the

; pool name (‘www‘ here)

[www]





; Per pool prefix

; It only applies on the following directives:

; - ‘slowlog‘

; - ‘listen‘ (unixsocket)

; - ‘chroot‘

; - ‘chdir‘

; - ‘php_values‘

; - ‘php_admin_values‘

; When not set, the global prefix (or /usr/local/php) applies instead.

; Note: This directive can also be relative to the global prefix.

; Default Value: none

;prefix = /path/to/pools/$pool





; Unix user/group of processes

; Note: The user is mandatory. If the group is not set, the default user‘s group

;       will be used.

user = www

group = www





; 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 address on

;                            a specific port;

;   ‘port‘                 - to listen on a TCP socket to all addresses 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: 65535 (-1 on FreeBSD and OpenBSD)

;listen.backlog = 65535





; 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 0666

;default disabled ,show 2014-04-18 by Happy

listen.owner = www

listen.group = www

listen.mode = 0666

;2014-04-18 shown END 

; List of ipv4 addresses 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

;default disabled,show 2014-04-18 by Happy

listen.allowed_clients = 127.0.0.1





; 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

; 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. The below defaults are based on a server without much resources. Don‘t

; forget to tweak pm.* to fit your needs.

; Note: Used when pm is set to ‘static‘, ‘dynamic‘ or ‘ondemand‘

; Note: This value is mandatory.

pm.max_children = 30





; 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 = 12





; 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 = 1 1.5G set 2,2G set 2 2014-04-18 BY Happy

pm.min_spare_servers = 4





; 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‘

;default pm.max_spare_servers = 3, 1.5G set 8,2G set 10 by 2014-04-18 by Happy

pm.max_spare_servers = 20





; 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

;default disabled set 500,show 2014-04-18 by Happy

pm.max_requests = 1000





; 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 μs 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: ${prefix}/share/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 = log/$pool.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)

;  %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

;

; 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

; if you open slowlog(man cha xun rizhi),the slowlog path is set;by Happy

;slowlog = log/$pool.log.slow

slowlog = /usr/local/php/var/log/php-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

;if you php thread time > the time,write php bad log;by Happy 2014-04-20

request_slowlog_timeout = 2s

 

; 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), m(inutes), h(ours), or d(ays)

; Default Value: 0

;if you php thread time > the time,close  the php script thread ;by Happy 2014-04-20

request_terminate_timeout = 30s

 

; Set open file descriptor rlimit.

; Default Value: system defined value

;set the value === system ulimit -Sn 65535 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

rlimit_files = 65535

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

 

; 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: you can prefix with ‘$prefix‘ to chroot to the pool prefix or one

; of its subdirectories. If the pool prefix is not set, the global prefix

; will be used instead.

; 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

 

; 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, 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.





; Note: path INI options can be relative and will be expanded with the prefix

; (pool, global or /usr/local/php)





; 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/fpm-php.www.log

;php_admin_flag[log_errors] = on

;php_admin_value[memory_limit] = 32M

下面说说出现的错误和一些情况：

nginx connections ,rlimits 跟php-fpm的rlimit_files 的参数配置 要与ulimit -n系统参数的连接数配置一致 

如果系统 参数比nginx 设置小的话 会出现 4XX,5xx错误，

还有 就是刚编译好的系统环境 默认ulimit -Sn 参数值只有 1024 个，1024 不能满足NGINX需求 测试并发时候怎么测试到了1024以后就4XX,5XX错误了，最后修改了系统内核参数 为16位 二进制最大数 也就是 65535 

failed to ptrace(PEEKDATA) pid 20160: Input/output error

php-fpm的rlimit_files参数 如果比系统的ulimit 小的话出现如上这个ERROR

nginx的参数设置如果比系统ulimit -sn 的参数值小的 话nginx 容易出现 5xx 错误

解决方案就是统一修改 php-fpm.conf,nginx.conf,与系统ulimit -sn 的 参数一致，如果 系统ulimt 的默认参数是1024的话，一定要修改掉他，修改为65535 即可，同时php-fpm,nginx的rlimit  参数也要与其一致……

lnmp之php-fpm+nginx+ulimit的综合设置之故障排除
标签：linux   nginx   php   lnmp   php-fpm   
原文地址：http://blog.csdn.net/zqtsx/article/details/24597041

                

                

                    

                        

                            

                                

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