Do you have ntp setup? It's possible for the cluster to form without
it if the clocks are close enough, but after some skew sets in the
cluster deamons work harder to keep in sync.
Regards,
Corey
On Mar 20, 2009, at 18:29, "Ed Sanborn" <ed.sanb...@genband.com> wrote:
Hi folks,
I have an 8-node cluster running on an IBM Bladecenter HS21. Using
RHEL 5.2, GFS (no GFS2).
The nodes are exhibiting high-cpu load with the following apps:
aisexec and cman_tool
Both these apps race the cpu without any other user apps doing much
at all.
Affectively, the user experience is dog-slow.
After I reboot one of the nodes it clears up, these apps (aisexec
and cman_tool)\
seem to behave, for awhile. Eventually they race the cpu again days
to weeks later.
Has anyone ever experienced this? Top output is below.
Thanks,
Ed
[r...@blade1]# top
top - 13:47:51 up 40 days, 22:16, 37 users, load average: 4.17,
3.94, 3.86
Tasks: 372 total, 2 running, 369 sleeping, 1 stopped, 0 zombie
Cpu(s): 5.9%us, 32.6%sy, 0.0%ni, 61.4%id, 0.0%wa, 0.0%hi,
0.0%si, 0.0%st
Mem: 8311372k total, 1934844k used, 6376528k free, 76332k
buffers
Swap: 8388600k total, 322976k used, 8065624k free, 443172k
cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4352 root RT 0 37404 35m 2020 R 100 0.4 10519:34 aisexec
20806 root 16 0 1684 560 484 S 42 0.0 8324:49 cman_tool
12501 root 15 0 1680 556 484 S 31 0.0 609:38.46 cman_tool
27245 root 16 0 1688 560 484 S 30 0.0 508:14.31 cman_tool
4635 root 34 19 0 0 0 S 2 0.0 1271:52 kipmi0
5047 root 18 0 405m 17m 6260 S 1 0.2 21:57.04 cimserver
28975 root 15 0 2564 1296 900 R 1 0.0 0:00.05 top
1 root 15 0 2064 576 524 S 0 0.0 0:02.91 init
2 root RT -5 0 0 0 S 0 0.0 0:02.98
migration/0
3 root 34 19 0 0 0 S 0 0.0 0:00.11
ksoftirqd/0
4 root RT -5 0 0 0 S 0 0.0 0:00.00
watchdog/0
5 root RT -5 0 0 0 S 0 0.0 0:01.29
migration/1
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