[Ocfs2-users] asynchronous hwclocks

Thu Jan 3 01:43:53 PST 2013

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