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trucluster+lockmanager+cpu

jousif
Frequent Advisor

trucluster+lockmanager+cpu

Hi Admins,
I have trucluster V5.1A,HSG80 controller,2XES40
Memory Chnnel interconnect,pk1
the lock manager is always consume about 50% of cpu time on evry node,
is this case good or not,
please advise.
4 REPLIES
Ivan Ferreira
Honored Contributor

Re: trucluster+lockmanager+cpu

I think that is not normal, your patch kit is very old.

You should install the latest patch kit.

For 5.1A, PK6?.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Ranjith_5
Honored Contributor

Re: trucluster+lockmanager+cpu

Hi,

Recommand you to upgrade to 5.1B with the latest patch kit. 5.1A is not supported.

Regards,
Syam
Han Pilmeyer
Esteemed Contributor

Re: trucluster+lockmanager+cpu

Which lock manager are we talking about and how have you determined that it's taking up 50% of CPU time?

Your message seems to imply, but that could just be me, that you are talking about DLM (the Distributed Lock Manager). Do you have applications that use this?

Or are you talking about NFS locking (rpc.lockd)? Any special NFS activity on your systems?
jousif
Frequent Advisor

Re: trucluster+lockmanager+cpu

Hi all,
run oracle OPS v8i with two instances,
instance1,instance2
from node2
# ps -ef|grep lmd
oracle 1053951 1048577 51.4 Oct 10 ?? 1-05:11:16 ora_lmd0_instance2
same from node1
sime times the process "kernel idle" either consume most cpu time,
many thanks to all