Q: dlm_recoverd takes 100%

Hi together,

maybe someone can give me a hint which ML to contact (if I am wrong here)?

In a two-node cluster system I see 'dlm_recoverd' taking 100% time of one cpu for around 6 minutes. Here is small excerpt from a 'top' output during that period:

top - 10:51:01 up 3 days, 17:21, 5 users, load average: 10.19, 5.39, 2.76

Tasks: 536 total,   3 running, 533 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.2%us,  6.6%sy,  0.0%ni, 92.1%id,  0.1%wa,  0.0%hi, 0.0%si,  0.0%st
Mem:  12183344k total, 11827540k used,   355804k free,   160332k buffers
Swap: 14417912k total,        0k used, 14417912k free,  8299364k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+ COMMAND
 3121 root      20   0     0    0    0 R 100.0  0.0   3:36.15 dlm_recoverd

The cluster nodes use a shared SAN (GFS2). The second node has been rebooted while I experience this behaviour. The real problem is that my application is unable to open a file on the SAN for these 6 minutes. After the reboot of the second node all is fine again and the application succeeds in opening the file. So I am not sure what can cause those two symptoms.

Thanks in advance for any hint!

Kind regards,

Heiko