I'm runnning Directadmin with apache2 and MariaDB server. But I'm having a hard time to understand why my server's CPU usage is so high.
When I try to look what is happening with strace, for some reason it is stuck on read(7,.
[root@s1 my.cnf.d]# strace -p 6780
strace: Process 6780 attached
read(7,
But when I try to see what files are open (with htop by pressing l), they are constantly changing. Problem started few days ago, average request count per second did not change. I'm trying lots of various methods to check the problem, but can't find any solution.
Apache server-info:
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_______
top:
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
...
Thank you in advance.
