Hp5-fpm Kecelakaan jika banyak pengunjung

Saya memutuskan untuk mengubah OP saya ke Nginx dari Litespeed karena saya membaca banyak tentang sumber daya rendah yang Nginx akan biaya.

Saya menjalankan situs Wordpress dengan 500 pengguna online

Oke terima kasih Guys untuk banyak bantuan :) Saya mengedit beberapa hal.

Saya juga memiliki beberapa pertanyaan:

Apakah saya harus menghapus; sebelum siang. pengaturan? Saya menghapusnya. Konfigurasi apa yang diperhitungkan? Saya mendapat dua cgi cepat di / etc / php5 / fpm disebut php-fpm.conf dan satu di /etc/php5/fpm/pool.d disebut www.conf?

Saya mencoba konfigurasi baru pada malam hari dan ketika saya bangun saya sudah mendapat halaman kosong. Teratas:

top - 13:55:27 up 1 day, 19:28,  2 users,  load average: 0.18, 0.36, 0.19
Tasks:  84 total,   1 running,  83 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.2%us,  0.0%sy,  0.0%ni, 99.8%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   3974264k total,  1051360k used,  2922904k free,   162380k buffers
Swap:  3998700k total,        0k used,  3998700k free,   609220k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 1857 www-data  20   0  193m  55m  22m S    0  1.4   0:04.67 php5-fpm
    1 root      20   0  8356  808  680 S    0  0.0   0:01.37 init
    2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd

Saya pikir penggunaan cpu sekarang lebih rendah, tapi itu tidak memperbaiki crash ...

Konfigurasi saya sekarang: php-fpm.conf

    ;;;;;;;;;;;;;;;;;;;;;
; FPM Configuration ;
;;;;;;;;;;;;;;;;;;;;;

; All relative paths in this configuration file are relative to PHP's install
; prefix (/usr). This prefix can be dynamicaly 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 arguement)
;  - /usr otherwise
;include=/etc/php5/fpm/*.conf

;;;;;;;;;;;;;;;;;;
; Global Options ;
;;;;;;;;;;;;;;;;;;

[global]
; Pid file
; Note: the default prefix is /var
; Default Value: none
pid = /var/run/php5-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 /var
; Default Value: log/php-fpm.log
error_log = /var/log/php5-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
;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 = 1

; 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 = 1s

; 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
process_control_timeout = 10s

; 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 = 150

; Send FPM to background. Set to 'no' to keep FPM in foreground for debugging.
; Default Value: yes
;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

;;;;;;;;;;;;;;;;;;;;
; 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 :)

; To configure the pools it is recommended to have one .conf file per
; pool in the following directory:
include=/etc/php5/fpm/pool.d/*.conf

request_terminate_timeout = 30s

pm.max_children = 25

; 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 = 2

; 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 = 5

; 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;

fastcgi_params:

fastcgi_param   QUERY_STRING        $query_string;
fastcgi_param   REQUEST_METHOD      $request_method;
fastcgi_param   CONTENT_TYPE        $content_type;
fastcgi_param   CONTENT_LENGTH      $content_length;

fastcgi_param   SCRIPT_FILENAME     $request_filename;
fastcgi_param   SCRIPT_NAME     $fastcgi_script_name;
fastcgi_param   REQUEST_URI     $request_uri;
fastcgi_param   DOCUMENT_URI        $document_uri;
fastcgi_param   DOCUMENT_ROOT       $document_root;
fastcgi_param   SERVER_PROTOCOL     $server_protocol;

fastcgi_param   GATEWAY_INTERFACE   CGI/1.1;
fastcgi_param   SERVER_SOFTWARE     nginx/$nginx_version;

fastcgi_param   REMOTE_ADDR     $remote_addr;
fastcgi_param   REMOTE_PORT     $remote_port;
fastcgi_param   SERVER_ADDR     $server_addr;
fastcgi_param   SERVER_PORT     $server_port;
fastcgi_param   SERVER_NAME     $server_name;

#fastcgi_param  HTTPS           $https;

# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param   REDIRECT_STATUS     200;

fastcgi_connect_timeout 60;
fastcgi_send_timeout 180;
fastcgi_read_timeout 180;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k;
fastcgi_intercept_errors on;

konfigurasi nginx:

user www-data;
worker_processes 2;
pid /var/run/nginx.pid;

events {
    worker_connections 500;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 40;
    types_hash_max_size 2048;
    server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # Logging Settings
    ##

    # access_log /var/log/nginx/access.log;
    # error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

 gzip_vary on;
 gzip_proxied any;
 gzip_comp_level 9;
 gzip_buffers 16 8k;
 gzip_http_version 1.1;
 gzip_types text/plain text/css application/json application/x-javascript text/$

www.conf

; 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]

user = www-data
group = www-data


pm = dynamic

pm.max_children = 25

pm.start_servers = 5

pm.min_spare_servers = 2

pm.max_spare_servers = 5

pm.process_idle_timeout = 10s;

pm.max_requests = 100

request_terminate_timeout = 120s

The Mashine: Dualcore 4gb ram

Tidak jelas apakah Anda menggunakan cacher opcode seperti apa APC. Pertama-tama, aktifkan. Sesuaikan memorinya untuk menghindari fragmentasi. Juga, gunakan soket, bukan koneksi http dari nginxke php5-fpm, dan tempatkan soket itu /dev/shm. Di nginx, gunakan fastcgi_pass unix:/dev/shm/php5-fpm.sock;, dan ubah konfigurasi php5-fpm sesuai.

Coba turunkan pm.max_childrenke sesuatu yang lebih realistis seperti 30-40-50-60 dan lihat beban dan lepaskan memori free -m. Lihat apakah klien mendapatkan kesalahan 502/504. Lebih rendah pm.start_servers, min, dan maks. Sesuai (15, 5, 25).

Jika ada banyak pengguna anonim, pertimbangkan untuk menggunakan plugin caching apa saja untuk suka wordpress WP-FFPC, WP Super Cacheatau serupa.

Nonaktifkan gzipping jika Anda mengaktifkannya di nginx.

Mungkin Anda perlu menyesuaikan fastcgi_buffer_sizedan fastcgi_buffersopsi di nginx.

Periksa apakah Anda memiliki cache Query diaktifkan dan mencukupi di Mysql.

Memiliki sistem pemantauan seperti munindiinstal di situs untuk memeriksa beban / konsumsi memori / latensi dll.

Server Anda cenderung menderita ketika kehabisan memori untuk menjalankan proses php. Pengaturan php5-fpm Anda tampaknya terlalu murah hati untuk RAM 4GB. Saya sudah banyak mengutak-atik untuk mendapatkan konfigurasi php5-fpm yang optimal (untuk pengguna online 32GB ram dan +1 1K, berikut adalah params yang relevan:

pm.max_children = 25
pm.start_servers = 5
pm.min_spare_servers = 2 
pm.max_spare_servers = 5
pm.max_requests = 100

Juga jangan lupa untuk mengatur batas waktu pemutusan permintaan untuk menghindari kekurangan memori karena proses idle:

request_terminate_timeout = 120s

Apa pun batas waktu yang Anda gunakan dalam directie di atas harus sesuai dengan arahan max_execution_time di php.ini Anda.

Sedangkan untuk nginx, mengaktifkan gzip adalah ide yang sangat bagus: CPU-bijaksana sangat murah dan menghemat banyak bandwidth server Anda.

   #sendfile on;
    #tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 10;
    types_hash_max_size 2048;
    # server_tokens off;
    gzip on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 9;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/x-javascript text/$

Semoga berhasil

Saya akan menyarankan untuk menggunakan pm = ondemand, dan pastikan ukuran memory_limit di php cukup besar untuk memori mesin.

Untuk mesin 4GB dengan 128 MB dalam proses PHP yang akan ada ~ 24 server PHP-FPM yang dapat Anda jalankan, ondemand bagus karena server akan menentukan jumlah maksimum server dan membuat yang baru saat beban naik.