High load on server, can't find cause

mitch2k

Member
Dec 5, 2010
12
0
51
Hi,

since a couple of days my cpanel server (VPS) has a very high load without reason. No programs are consuming high memory or cpu. Load is constant around 20, and due the high load a number of services are failing

This is the result of top:

Code:
top - 19:59:31 up 55 min,  2 users,  load average: 20.51, 20.68, 16.59
Tasks: 146 total,   1 running, 145 sleeping,   0 stopped,   0 zombie
Cpu(s): 66.2%us, 13.2%sy,  0.0%ni,  0.0%id, 19.9%wa,  0.0%hi,  0.7%si,  0.0%st
Mem:   1034656k total,   904992k used,   129664k free,    60000k buffers
Swap:  1052248k total,        0k used,  1052248k free,   596828k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 4655 mysql     15   0  336m  54m 5340 S  2.3  5.3   0:32.06 mysqld
27097 nagios    19   0 12360 4516 3024 D  0.7  0.4   0:00.04 yum
 4188 root      18   0 12120 8000 1288 S  0.4  0.8   0:02.52 lfd - sleeping
27027 cpanelro  18   0 31248  13m 5612 S  0.4  1.3   0:00.16 php-cgi
  515 root      10  -5     0    0    0 D  0.2  0.0   0:01.65 kjournald
 4362 root      15   0  2076  648  564 S  0.2  0.1   0:02.96 hald-addon-stor
 6366 root      34  19  2676 1128  952 S  0.2  0.1   0:00.02 gam_server
22108 nobody    15   0 12048 3652 1928 S  0.2  0.4   0:00.10 httpd
25885 root      15   0 17788  10m 2468 S  0.2  1.1   0:00.07 cpsrvd-ssl
26600 root      15   0  2444 1092  808 R  0.2  0.1   0:00.24 top
    1 root      15   0  2176  648  556 S  0.0  0.1   0:02.27 init
    2 root      RT  -5     0    0    0 S  0.0  0.0   0:00.00 migration/0
    3 root      34  19     0    0    0 S  0.0  0.0   0:00.00 ksoftirqd/0
    4 root      10  -5     0    0    0 S  0.0  0.0   0:00.01 events/0
    5 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 khelper
    6 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 kthread
    9 root      10  -5     0    0    0 S  0.0  0.0   0:00.03 kblockd/0
   10 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kacpid
  168 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 cqueue/0
  171 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 khubd
  173 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 kseriod
  241 root      19   0     0    0    0 S  0.0  0.0   0:00.00 khungtaskd
  242 root      16   0     0    0    0 S  0.0  0.0   0:00.00 pdflush
  243 root      15   0     0    0    0 S  0.0  0.0   0:00.26 pdflush
  244 root      10  -5     0    0    0 S  0.0  0.0   0:00.09 kswapd0
  245 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 aio/0
  463 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kpsmoused
  493 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 mpt_poll_0
  494 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 mpt/0
  495 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 scsi_eh_0
  498 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 ata/0
  499 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 ata_aux
  506 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kstriped
  540 root      10  -5     0    0    0 S  0.0  0.0   0:00.01 kauditd
  573 root      16  -4  2412  732  404 S  0.0  0.1   0:00.57 udevd
 1899 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kmpathd/0
 1900 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kmpath_handlerd
I'm trying to discover the cause of the high load. Since I don't see processes consuming high amount of cpu or mem, where can I start looking?

Thanks!