• seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 39 idle, and 50 total children


    一:系统环境

    [machao@aiye log]$ cat /etc/redhat-release 
    CentOS Linux release 7.3.1611 (Core) 
    [machao@aiye log]$ uname -i
    x86_64 
    内存:64G

    二:php-error.log路径

    [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
    

    三:检查php的errorlog日志

    最近看监控,发现php-fpm,mysql的cpu过高,服务器压力过大,就想着优化下php-fpm和mysql的参数
    这里:检查php-fpm的errorlog
    
    [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
    注释:好像很忙碌,你需要增加pm.start_servers 或pm.min/max_spare_servers
      

    四:php-fpm进程池优化

    php-fpm进程池开启进程有两种方式:
    一种是:static (静态的), 直接开启指定数量的php-fpm进程,不再增加或者减少
    一种是:dynamic (动态的), 开始时开启一定数量的php-fpm进程, 当请求量变大时,动态的增加php-fpm进程数达到上限, 当空闲时自动释放空闲的进程数到一个下限。
    (生产环境中,根据服务器实际需求来进行调整)
    
    要用到的一些参数 ,分别是 pm,pm.max_children,pm.start_servers,pm.min_spare_servers,pm.max_spare_servers
    
    pm表示使用哪种方式,有两个值可以选择。staic或者dynamic
    例:pm = dynamic
    
    pm.max_children:静态方式下指开启的php-fpm进程数量, 在动态方式下限定php-fpm的最大进程数。
    
    pm.start_servers:动态方式下的起始php-fpm进程数量。
    
    pm.min_spare_servers:动态方式空闲状态下的最小php-fpm进程数量。ps:spare(空闲的)
    
    pm.max_spare_servers:动态方式下空闲状态的最大php-fpm进程数量。
    
    如果pm设置为staic,那么只有pm.max_childern这个参数生效
    
    如果pm设置为dynamic,4个参数都生效。系统会在php-fpm运行开始时启动pm.start_servers个php-fpm进程,然后根据系统的需求动态在pm.min_spare_serverspm.max_spare_servers之间调整php-fpm进程数。
    
    PS:要求pm.start_servers的值在pm.min_spare_servers和pm.max_spare_servers之间

    五:php-fpm优化后的参数

    [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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  • 原文地址:https://www.cnblogs.com/mclzy/p/9103851.html
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