[Ocfs2-users] asynchronous hwclocks

[Sunil Mushran]

The fs does not care about time. It should have no effect on the cluster. However the apps may care and may behave erratically. 

On Jan 3, 2013, at 3:13 PM, "Medienpark, Jakob Rößler" <roessler at medienpark.net> wrote:

> Hello list,
> 
> today I noticed huge differences between the hardware clocks in our cluster.
> Some details:
> 
> root at www01:~# hwclock;date
> Do 03 Jan 2013 09:32:09 CET  -0.626096 seconds
> Do 3. Jan 09:34:54 CET 2013
> 
> root at www02:~# hwclock;date
> Do 03 Jan 2013 09:32:09 CET  -0.626091 seconds
> Do 3. Jan 09:34:54 CET 2013
> 
> root at www03:~# hwclock;date
> Do 03 Jan 2013 09:34:54 CET  -0.625820 seconds
> Do 3. Jan 09:34:54 CET 2013
> 
> root at storage:~# hwclock;date
> Do 03 Jan 2013 08:34:54 CET  -0.641532 seconds
> Do 3. Jan 09:34:54 CET 2013
> 
> The server 'storage' is the server which provides the iscsi device to 
> www01-03.
> Because the cluster was very unstable during load peaks, I want to ask 
> you what kind of effects it will have to ocfs2 if the hwclocks are 
> asynchronous like shown above.
> 
> Thanks in advance
> 
> Jakob
> 
> 
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