RHEVM cpu utilization is very high

Solution Verified - Updated -

Issue

  • RHEVM cpu utilization is very high
  • The webadmin application in very slow and postgresql processes are consuming a lot of CPU:
top - 16:00:50 up 40 days,  4:22,  1 user,  load average: 0.37, 0.49, 0.54
Tasks: 187 total,   4 running, 183 sleeping,   0 stopped,   0 zombie
Cpu(s): 22.2%us, 46.7%sy,  0.0%ni, 31.1%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  12200040k total, 12001664k used,   198376k free,     9104k buffers
Swap: 18743288k total,   558848k used, 18184440k free,  2124456k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
13814 postgres  20   0  241m  65m  36m R 40.2  0.6  37:23.17 postmaster
15728 postgres  20   0  244m  64m  36m R 39.5  0.5  12:48.72 postmaster
15729 postgres  20   0  242m  62m  36m R 37.8  0.5  11:18.09 postmaster
15733 postgres  20   0  242m  65m  36m S 19.6  0.6   8:27.57 postmaster
 2787 ovirt     20   0 2801m 1.0g 5408 S  1.7  8.5   1579:36 java
 2106 root      20   0 2454m 175m 2836 S  1.0  1.5 394:43.94 java
   12 root      20   0     0    0    0 S  0.3  0.0   3:40.65 events/1
    1 root      20   0 19352  952  792 S  0.0  0.0   0:05.79 init
    2 root      20   0     0    0    0 S  0.0  0.0   0:00.01 kthreadd
    3 root      RT   0     0    0    0 S  0.0  0.0   0:00.21 migration/0
    4 root      20   0     0    0    0 S  0.0  0.0   5:06.15 ksoftirqd/0
  • Error in ovirt-engine-dwhd.log:
2013-08-13 12:10:00|EIcH09|PrZXdj|EmhjU1|OVIRT_ENGINE_DWH|SampleTimeKeepingJob|Default|6|Java Exception|tJava_1|javax.net.ssl.SSLHandshakeException:java.security.cert.CertificateException: No name matching xyz found|1

Environment

  • Red Hat Enterprise Virtualization 3.1
  • ovirt-engine-dwh

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