[Ocfs-users] CPU 100% with any activity on OCFS

[Ivan Wong]

Hi experts,
 
Just upgraded from 1.0.9-9 to 1.0.13-1. All went smooth but every two
months we have a problem of CPU gets 100% on any activity done on OCFS
mountpoints. (mv, cp, gzip, rm, etc). The only way I know how to solve
now is reboot the stack but this cost us downtime and this is only a
band aid not a solution.
 
Found some msg on /var/log/message before this happen that may or may
not be related:
 
Dec  4 20:13:39 x335-215 kernel: ocfs: Removing x335-235-HB (node 5)
from clustered device (8,36)
Dec  4 20:14:21 x335-215 kernel: ocfs: Adding x335-235-HB (node 5) to
clustered device (8,36)

My current version is:
 
/e2open/home/oracle: 1004>rpm -qa | grep ocfs
ocfs-support-1.0.10-1
ocfs-tools-1.0.10-1
ocfs-2.4.9-e-smp-1.0.13-1
 
Output from top:
 
  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
 6299 oracle    25   0   412  412   352 R    99.9  0.0  14:28 cp
25751 root      25   0  3584 3584   828 R    97.5  0.0 260:46 bpbkar
 3628 oracle    15   0 18856  17M 13092 D     7.7  0.4   3:21 oracle
 8158 oracle    15   0  1200 1200   772 R     0.3  0.0   0:01 top
    8 root      34  19     0    0     0 RWN   0.0  0.0   1:21
ksoftirqd_CPU2


Any advice what is the problem?
 
Thanks / regards,
 
Ivan Wong
Database Administrator
 
e2Open Inc. (www.e2open.com <http://www.e2open.com/> ) 
Suite 34.03, Level 34, 
Menara Citibank,
156, Jalan Ampang,
50450 Kuala Lumpur, Malaysia
DID: +603 2776 6392
Tel: +603 2776 6300 
Fax: +603 2712 9112
 
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