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Re: [Linux-cluster] GFS cluster / DLM locking - Mostly idle but high load



On Wed, 17 Oct 2007, Marc Grimme wrote:

with your testing did you also try to adapt the size of the
rsbtbl_size/lkbtbl_size?

If I'm reading the docs correctly, these should be under /proc/cluster.
My nodes don't appear to have /proc/cluster. (!!)

As you are using RHEL5, I thinks the settings have to be done
in /sys/kernel/config/dlm/cluster/
In your case it might be
/var/comoonics/chroot/sys/kernel/config/dlm/cluster/

Yup - that looks better. But I still cannot see any files called
rsbtbl_size or lkbtbl_size.
I see it
[root axqa01_1 ~]# uname -a
Linux axqa01_1 2.6.18-52.el5xen #1 SMP Wed Sep 26 16:01:46 EDT 2007 i686 i686
i386 GNU/Linux
[root axqa01_1 ~]#
cat /cdsl.local/var/comoonics/chroot/sys/kernel/config/dlm/cluster/lkbtbl_size
1024
[root axqa01_1 ~]#
cat /cdsl.local/var/comoonics/chroot/sys/kernel/config/dlm/cluster/rsbtbl_size
256
Hope that helps.
Marc.

I don't have /cdsl.local/var/comoonics. I do have /var/comoonics, though:
# ls /var/comoonics/chroot/sys/kernel/config/dlm/cluster/
comms  spaces

Only comms and spaces directories there. :-(

Gordan


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