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[Linux-cluster] GFS and CPU time



Hi, we've created a 6 node cluster with GFS filesystem. The question is why there's always one node that the CPU time of those GFS/lock related processes is a lot higher than the others.
Node 1
root 3799 0.0 0.0 0 0 ? S< Mar31 0:00 [dlm_recoverd]
root      3806  0.1  0.0      0     0 ?        S<   Mar31  16:37 [lock_dlm1]
root      3807  0.1  0.0      0     0 ?        S<   Mar31  16:40 [lock_dlm2]
root      3808  1.0  0.0      0     0 ?        S    Mar31 102:27 [gfs_scand]
root 3809 0.1 0.0 0 0 ? S Mar31 18:05 [gfs_glockd] root 3810 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_recoverd]
root      3811  0.0  0.0      0     0 ?        S    Mar31   0:00 [gfs_logd]
root 3812 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_quotad] root 3813 0.0 0.0 0 0 ? S Mar31 0:18 [gfs_inoded]
Node 2
root 4230 0.0 0.0 0 0 ? S< Mar31 0:00 [dlm_recoverd]
root      4237  0.0  0.0      0     0 ?        S<   Mar31   4:16 [lock_dlm1]
root      4238  0.0  0.0      0     0 ?        S<   Mar31   4:13 [lock_dlm2]
root      4239  0.4  0.0      0     0 ?        S    Mar31  38:01 [gfs_scand]
root 4240 0.0 0.0 0 0 ? S Mar31 2:58 [gfs_glockd] root 4241 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_recoverd]
root      4242  0.0  0.0      0     0 ?        S    Mar31   0:00 [gfs_logd]
root 4243 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_quotad] root 4244 0.0 0.0 0 0 ? S Mar31 0:45 [gfs_inoded]
Node 3
root 4124 0.0 0.0 0 0 ? S< Mar31 0:00 [dlm_recoverd]
root      4131  0.0  0.0      0     0 ?        S<   Mar31   2:29 [lock_dlm1]
root      4132  0.0  0.0      0     0 ?        S<   Mar31   2:29 [lock_dlm2]
root      4133  0.9  0.0      0     0 ?        S    Mar31  88:45 [gfs_scand]
root 4134 0.0 0.0 0 0 ? S Mar31 2:35 [gfs_glockd] root 4135 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_recoverd]
root      4136  0.0  0.0      0     0 ?        S    Mar31   0:00 [gfs_logd]
root 4137 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_quotad] root 4138 0.0 0.0 0 0 ? S Mar31 0:06 [gfs_inoded]
Node 4
root 17576 0.0 0.0 0 0 ? S< Mar31 0:00 [dlm_recoverd]
root     17577  0.0  0.0      0     0 ?        S<   Mar31   0:00 [lock_dlm1]
root     17578  0.0  0.0      0     0 ?        S<   Mar31   0:00 [lock_dlm2]
root     17579  0.0  0.0      0     0 ?        S    Mar31   0:01 [gfs_scand]
root 17580 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_glockd] root 17581 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_recoverd]
root     17582  0.0  0.0      0     0 ?        S    Mar31   0:00 [gfs_logd]
root 17583 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_quotad] root 17584 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_inoded]
Node 5
root 30784 0.0 0.0 0 0 ? S< Mar31 0:00 [dlm_recoverd]
root     30785  0.0  0.0      0     0 ?        S<   Mar31   0:47 [lock_dlm1]
root     30786  0.0  0.0      0     0 ?        S<   Mar31   0:46 [lock_dlm2]
root 30787 0.2 0.0 0 0 ? S Mar31 10:00 [gfs_scand] root 30788 0.0 0.0 0 0 ? S Mar31 0:50 [gfs_glockd] root 30789 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_recoverd]
root     30790  0.0  0.0      0     0 ?        S     Mar31   0:00 [gfs_logd]
root 30791 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_quotad] root 30792 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_inoded]
Node 6
root 4273 0.0 0.0 0 0 ? S< Mar31 0:00 [dlm_recoverd]
root      4274  0.0  0.0      0     0 ?        S<   Mar31   0:18 [lock_dlm1]
root      4275  0.0  0.0      0     0 ?        S<   Mar31   0:17 [lock_dlm2]
root      4276  0.1  0.0      0     0 ?        S    Mar31   5:36 [gfs_scand]
root 4277 0.0 0.0 0 0 ? S Mar31 0:22 [gfs_glockd] root 4278 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_recoverd]
root      4279  0.0  0.0      0     0 ?        S    Mar31   0:00 [gfs_logd]
root 4280 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_quotad] root 4281 0.0 0.0 0 0 ? S Mar31 0:00 [gfs_inoded]

FC 4
kernel-smp-2.6.15-1.1831_FC4
dlm-kernel-smp-2.6.11.5-20050601.152643.FC4.21
GFS-kernel-smp-2.6.11.8-20050601.152643.FC4.24
cman-kernel-smp-2.6.11.5-20050601.152643.FC4.22

TIA
German Staltari


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