linux – 交换内存耗尽服务器甚至站点都有小访问者
我在32位VPS主机上运行CentOs 6.5.它只运行php-fpm,nginx和
mysql.
我的网站每天平均有20个访问者,但我最近收到了来自我的主机提供商的此消息.
我想弄清楚这一点.内容较少的网站如何获得20次访问会消耗那么多内存? 我不确定这是来自php,centos ……还是其他.但我在这里有一些输出,有人可能会确定问题的核心. [root@site.name~]# free -m total used free shared buffers cached Mem: 498 489 9 0 1 19 -/+ buffers/cache: 469 29 Swap: 1022 180 842 top - 18:33:36 up 65 days,1 min,1 user,load average: 0.00,0.02,0.00 Tasks: 109 total,1 running,108 sleeping,0 stopped,0 zombie Cpu(s): 1.0%us,0.3%sy,0.0%ni,98.3%id,0.3%wa,0.0%hi,0.0%si,0.0%st Mem: 510868k total,503092k used,7776k free,1904k buffers Swap: 1047544k total,185096k used,862448k free,20956k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 7435 mysql 20 0 352m 7752 2852 S 1.0 1.5 56:23.52 mysqld 17806 nginx 20 0 50088 12m 2640 S 0.7 2.5 18:13.65 php-fpm 984 root 20 0 8940 372 272 S 0.3 0.1 0:29.68 sshd 3148 root 20 0 2692 1128 880 R 0.3 0.2 0:00.15 top 1 root 20 0 2900 416 292 S 0.0 0.1 0:07.29 init 这可能是什么问题?它有什么问题吗? UPDATE @Michael Hampton输出顶部>转移M. top - 14:34:29 up 66 days,20:02,2 users,0.00,0.00 Tasks: 110 total,109 sleeping,0 zombie Cpu(s): 0.3%us,0.0%sy,99.7%id,0.0%wa,504528k used,6340k free,3084k buffers Swap: 1047544k total,179784k used,867760k free,19532k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 19041 nginx 20 0 58672 22m 2660 S 0.0 4.5 24:00.18 php-fpm 17805 nginx 20 0 58672 22m 2688 S 0.0 4.5 16:46.40 php-fpm 19040 nginx 20 0 58776 17m 2684 S 0.0 3.6 24:27.53 php-fpm 19046 nginx 20 0 53412 17m 2692 S 0.0 3.5 22:51.54 php-fpm 17796 nginx 20 0 53604 16m 2648 S 0.0 3.3 15:14.62 php-fpm 19042 nginx 20 0 52144 15m 2660 S 0.0 3.0 22:16.40 php-fpm 17186 nginx 20 0 52208 15m 2656 S 0.0 3.0 25:22.13 php-fpm 24580 nginx 20 0 50600 14m 2660 S 0.0 3.0 13:23.23 php-fpm 19014 nginx 20 0 52084 14m 2692 S 0.0 3.0 22:16.57 php-fpm 19007 nginx 20 0 58724 14m 2724 S 0.0 3.0 25:09.20 php-fpm 19032 nginx 20 0 50156 14m 2692 S 0.0 3.0 24:25.53 php-fpm 17830 nginx 20 0 50088 14m 2696 S 0.0 2.9 16:37.53 php-fpm 17816 nginx 20 0 49996 14m 2768 S 0.0 2.9 18:57.37 php-fpm 19043 nginx 20 0 50140 14m 2648 S 0.0 2.9 23:30.66 php-fpm 17806 nginx 20 0 50088 14m 2656 S 0.0 2.9 19:38.99 php-fpm 17188 nginx 20 0 50100 14m 2656 S 0.0 2.9 22:46.46 php-fpm 17817 nginx 20 0 49836 14m 2660 S 0.0 2.9 18:29.45 php-fpm 17820 nginx 20 0 48892 13m 2972 S 0.0 2.8 18:01.07 php-fpm 19030 nginx 20 0 58824 13m 2652 S 0.0 2.8 23:40.90 php-fpm 17798 nginx 20 0 48780 13m 2696 S 0.0 2.7 17:09.82 php-fpm 17187 nginx 20 0 58672 13m 2716 S 0.0 2.7 23:04.46 php-fpm 17807 nginx 20 0 52076 13m 2660 S 0.0 2.6 16:45.52 php-fpm 19029 nginx 20 0 58924 12m 2688 S 0.0 2.6 24:00.66 php-fpm 17808 nginx 20 0 58676 12m 2688 S 0.0 2.6 17:31.33 php-fpm 17799 nginx 20 0 50088 12m 2660 S 0.0 2.6 17:41.13 php-fpm 19015 nginx 20 0 58680 12m 2656 S 0.0 2.6 21:59.83 php-fpm 18295 nginx 20 0 48512 12m 2692 S 0.0 2.6 16:57.08 php-fpm 19027 nginx 20 0 48368 12m 2656 S 0.0 2.6 24:40.65 php-fpm 17819 nginx 20 0 48208 12m 2656 S 0.0 2.5 16:43.87 php-fpm 19031 nginx 20 0 49960 12m 2648 S 0.0 2.5 23:28.34 php-fpm 17832 nginx 20 0 47884 12m 2660 S 0.0 2.5 16:04.87 php-fpm 17818 nginx 20 0 47884 12m 2660 S 0.0 2.5 16:03.53 php-fpm 17831 nginx 20 0 47864 12m 2696 S 0.0 2.5 16:43.48 php-fpm 18249 nginx 20 0 47884 12m 2664 S 0.0 2.5 16:27.29 php-fpm 7435 mysql 20 0 352m 7780 2872 S 0.3 1.5 62:00.00 mysqld 19033 nginx 20 0 42540 7368 2676 S 0.0 1.4 24:04.93 php-fpm 31015 root 20 0 12028 3708 2940 S 0.0 0.7 0:00.17 sshd 30826 postfix 20 0 13628 2260 1640 S 0.0 0.4 0:00.00 pickup 30995 root 20 0 5252 1704 1412 S 0.0 0.3 0:00.03 bash 31020 root 20 0 5256 1704 1416 S 0.0 0.3 0:00.03 bash 19028 nginx 20 0 58668 1648 1528 S 0.0 0.3 9:11.84 php-fpm 解决方法
我们可以从您更新的输出中看到您有34个PHP工作程序正在运行(不包括主进程),所有这些都占用内存并且完全空闲.这意味着你已经调整了php-fpm以在更大容量的机器上运行,远远超过你实际获得的流量.或者,或许,根本没有调整它.
目前,这些进程占用了VM的3/4以上,并且绝对没有任何好处. 因此,检查php-fpm池配置中的调优,例如默认的/etc/php-fpm.d/www.conf.对于像这样的小型VPS,我可能会在某处开始: pm = dynamic pm.max_children = 10 pm.start_servers = 3 pm.min_spare_servers = 3 pm.max_spare_servers = 5 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |