[OpenIndiana-discuss] NTPD and PPM issues?

[Andrew Gabriel]

Dan Swartzendruber wrote:
>
> I have an openindiana virtual machine running under ESXi. The vmware 
> tools are installed and timesync is disabled. I have ntpd configured 
> and working with several servers in the us.pool.ntp.org subdomain. It 
> all seems to work - comparing the time with 2 other virtual machines 
> on the same hypervisor indicates a match to the second. Yet, on OI, I 
> see these messages every few minutes:
>
> May 27 14:17:25 nas ntpd[282]: [ID 702911 daemon.notice] frequency 
> error -512 PPM exceeds tolerance 500 PPM
>
> Neither of the other VMs running ntpd complain this way. I'm not even 
> sure this is VM related or maybe some Opensolaris-related thing, so 
> forgive the possible waste of bandwidth (heck, I'm not even sure this 
> is really an issue, but I tend to be concerned when I see a lot of 
> messages like this...)
>
> Any thoughts on this? Thx!

Don't expect realtime or low latency software to run correctly in a 
hypervisor-virtualized OS.

-- 
Andrew