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Re: VMware and mirror/multimaster

Martin Simovic wrote:
yes, there are issues with a clock in vmware virtual hosts. ntpd is not
a solution, the right way is to run ntpd on physical machine and set up
virtual machines to sync clock with the physical one (using vmware

Even that is insufficient; the clock synchronization is neither continuous nor deterministic so there are long periods of time where the virtual clocks drift before they're corrected by the next sync.


On Tue, 2008-07-29 at 18:21 -0700, Howard Chu wrote:
Dave Horsfall wrote:
Has anyone tried mirroring or multimaster under VMware i.e. are the
virtual clocks stable enough?  We're starting to use VMware to cut down on
the number of physical hosts, but I'd like to use the latest 2.4 features
as well.

I don't have any long-term experience with that setup, just use VMware for
short-duration tests. My suspicion is that the clock stability isn't very
good, and ntpd can't correct for it...

-- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/