一:系統環境
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[machao@aiye log]$ cat / etc / redhat - release
CentOS Linux release 7.3 . 1611 (Core)
[machao@aiye log]$ uname - i
x86_64 內存: 64G
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二:php-error.log路徑
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[machao@zhangwan22222222 log]$ cat / usr / local / php - 7.0 . 22 / etc / php - fpm.conf
[ global ]
error_log = / usr / local / php - 7.0 . 22 / var / log / php - fpm.log
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三:檢查php的errorlog日誌
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最近看監控,發現php - fpm,mysql的cpu過高,服務器壓力過大,就想着優化下php - fpm和mysql的參數
這裏:檢查php - fpm的errorlog
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[machao@aiye log]$ sudo tail - 100 / usr / local / php - 7.1 . 10 / var / log / php - fpm.log
[ 29 - May - 2018 08 : 55 : 30 ] WARNING: [pool www11] seems busy (you may need to increase pm.start_servers, or pm. min / max_spare_servers), spawning 32 children, there are 27 idle, and 89 total children註釋:好像很忙碌,你需要增加pm.start_servers 或pm. min / max_spare_servers
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四:php-fpm進程池優化
php-fpm進程池開啓進程有兩種方式:
一種是:static (靜態的), 直接開啓指定數量的php-fpm進程,不再增加或者減少
一種是:dynamic (動態的), 開始時開啓一定數量的php-fpm進程, 當請求量變大時,動態的增加php-fpm進程數達到上限, 當空閒時自動釋放空閒的進程數到一個下限。
(生產環境中,根據服務器實際需求來進行調整)
要用到的一些參數 ,分別是 pm,pm.max_children,pm.start_servers,pm.min_spare_servers,pm.max_spare_servers
pm表示使用哪種方式,有兩個值可以選擇。staic或者dynamic
例:pm = dynamic
pm.max_children:靜態方式下指開啓的php-fpm進程數量, 在動態方式下限定php-fpm的最大進程數。
pm.start_servers:動態方式下的起始php-fpm進程數量。
pm.min_spare_servers:動態方式空閒狀態下的最小php-fpm進程數量。ps:spare(空閒的)
pm.max_spare_servers:動態方式下空閒狀態的最大php-fpm進程數量。
如果pm設置爲staic,那麼只有pm.max_childern這個參數生效
如果pm設置爲dynamic,4個參數都生效。系統會在php-fpm運行開始時啓動pm.start_servers個php-fpm進程,然後根據系統的需求動態在pm.min_spare_servers和pm.max_spare_servers之間調整php-fpm進程數。
PS:要求pm.start_servers的值在pm.min_spare_servers和pm.max_spare_servers之間
五:php-fpm優化後的參數
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[machao@zhangwan22222222 log]$ sudo cat / usr / local / php - 7.1 . 10 / etc / php - fpm.conf
[ global ]
pid = / usr / local / php - 7.1 . 10 / var / run / php - fpm.pid
error_log = / usr / local / php - 7.1 . 10 / var / log / php - fpm.log
[www]
listen = / tmp / php - fcgi.sock
user = php - fpm
group = php - fpm
pm = dynamic
pm.max_children = 100
pm.start_servers = 40
pm.min_spare_servers = 30
pm.max_spare_servers = 60
pm.max_requests = 5000
rlimit_files = 60000
listen.owner = nobody
listen.group = nobody
listen.mode = 0666
security.limit_extensions = .php .php3 .php4 .php5 .php7
[www2]
listen = / tmp / php - fcgi2.sock
user = php - fpm
group = php - fpm
pm = dynamic
pm.max_children = 100
pm.start_servers = 40
pm.min_spare_servers = 30
pm.max_spare_servers = 60
pm.max_requests = 5000
rlimit_files = 60000
listen.owner = nobody
listen.group = nobody
listen.mode = 0666
[www10]
listen = / tmp / php - fcgi10.sock
user = php - fpm
group = php - fpm
pm = dynamic
pm.max_children = 1000
pm.start_servers = 200
pm.min_spare_servers = 200
pm.max_spare_servers = 500
pm.max_requests = 5000
rlimit_files = 60000
listen.owner = nobody
listen.group = nobody
listen.mode = 0666
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