[Fedora-directory-users] replica multi-master, clock skew and /etc/ntp.conf

[Eddie C]

VM-ware somtimes has annoying clock issues.

If you are using a VMware supported Kernel on a VMware supported OS
you should be able to 'install vmware tools' - run the RPM be ok.

I am on Fedora Core 5. This is what I have to do.

My VMWare machines have I have found that using VMWare server with the
stock FC5 kernel works and vmware 1.0.1 works 'OK' as long as:

-You install VMware tools on the guest os
-You turn on the real time clock in the configuration of vmware tools
-You change clock=PIT in the kernel boot
-You only use one processor for the system.

Your milage on this may vary depending on what kernel / vmware
combination you are using.

With two processor emulation I found the clock totally irradic, and
the host system was telling me about soft lockups. I found that for
most things one processor emulation works well enough.

Here is what I do:
install kernel-source/kernel-devel
In vmware click 'install vmware tools'
This creats a pseudo CD device that you have to mount ( I do not remember how)
In the psuedo cd-rom device there are two files
VMware-Tools-1.0.1-(version).rpm and the tar
I RPM install the tar
download vmware-any-any-update105.tar.gz
vmware-tools-any-update1.tar.gz
tar -xf vmware-tools-any-update1.tar.gz
tar -xf vmware-any-any-update105.tar.gz
cp vmware-tools-any-update/runme.pl
vmware-any-any-update/runme.pl
cd vmware-any-any-update
perl runme.pl
Set clock=pit in kernel config
Reboot

Still, I find if the system is very busy I have found the clock
jumping a minute and then jumping back. I still run ntp sometimes
against suggestion of vmware. Then again I am not on a supported OS.


On 7/2/07, Maurizio Marini <maumar.marini at cost.it> wrote:
> Hi there,
> i am setupping replica multi-master, and things seems to go ahead; for other
> newbies like me, i suggest to have file hosts and named daemon setupped very
> carefully regarding reverse resolution of the other master in replica
> agreement.
> The only trouble, now, is clock skew: i am developing on a server with vmware
> server; 2 master are 2 virtual centos on vmware server.
> I am trying to get their clock synced each other or, at least, with dom0
> server, with no success.
> Someone there has a very bare and simple /etc/ntp.conf to get 2 master servers
> time synced?
> Any help will be very appreciated
>        Maurizio
>
> --
> Fedora-directory-users mailing list
> Fedora-directory-users at redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-directory-users
>