我正在使用 apache2 和 MariaDB 服务器运行 Directadmin。但我不明白为什么我的服务器的 CPU 使用率如此之高。
当我尝试查看 strace 发生了什么时，由于某种原因，它卡在了read(7,。
[root@s1 my.cnf.d]# strace -p 6780
strace: Process 6780 attached
read(7,
但是当我尝试查看哪些文件已打开时（使用 htop 按l），它们不断变化。问题几天前开始出现，每秒的平均请求数没有变化。我尝试了很多方法来检查问题，但找不到任何解决方案。
Apache 服务器信息：
Current Time: Sunday, 22-Dec-2019 21:15:57 EET
Restart Time: Sunday, 22-Dec-2019 20:43:12 EET
Parent Server Config. Generation: 1
Parent Server MPM Generation: 0
Server uptime: 32 minutes 44 seconds
Server load: 22.42 16.36 10.82
Total accesses: 25799 - Total Traffic: 148.9 MB - Total Duration: 22078672311849
CPU Usage: u1358.74 s2198 cu33.49 cs58.63 - 186% CPU load
13.1 requests/sec - 77.7 kB/second - 5.9 kB/request - 855796000 ms/request
36 requests currently being processed, 92 idle workers
KR_W_LRLC____WR_R_L__R___R_RLL___L__LL_RL_R___L__L______LRLW_R_L
________L__________R____________________R____L_____L____R_______
顶部：
top - 21:22:43 up 26 days, 5:52, 1 user, load average: 17.54, 16.13, 12.58
Tasks: 391 total, 3 running, 388 sleeping, 0 stopped, 0 zombie
%Cpu(s): 49.9 us, 49.6 sy, 0.0 ni, 0.3 id, 0.0 wa, 0.0 hi, 0.2 si, 0.0 st
KiB Mem : 32605832 total, 218292 free, 2629852 used, 29757688 buff/cache
KiB Swap: 16383996 total, 11705240 free, 4678756 used. 29463816 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6780 apache 20 0 3738384 275780 5580 S 250.0 0.8 63:01.83 httpd
6184 mysql 20 0 9831040 514744 6560 S 61.9 1.6 31:56.88 mysqld
6947 apache 20 0 3602964 189968 4740 S 43.7 0.6 12:10.16 httpd
46 root 20 0 0 0 0 S 9.9 0.0 428:13.94 kswapd0
6257 dh00001 20 0 882312 197940 20488 S 3.6 0.6 0:57.29 php-fpm71
18045 admin 20 0 414864 26080 16620 S 3.3 0.1 0:01.30 php-fpm56
7697 admin 20 0 415160 27148 17944 S 3.0 0.1 0:08.30 php-fpm56
7707 admin 20 0 417504 28980 19428 S 3.0 0.1 0:08.89 php-fpm56
7715 admin 20 0 417912 41828 31608 S 3.0 0.1 0:06.76 php-fpm56
15535 admin 20 0 415520 40260 30392 S 3.0 0.1 0:04.53 php-fpm56
15545 admin 20 0 415116 39756 30124 S 3.0 0.1 0:03.96 php-fpm56
7672 admin 20 0 414948 40748 31456 S 2.6 0.1 0:08.54 php-fpm56
...
先感谢您。