[Linux-cluster] ntpdate cman and random fence-ing

Ivan Pantovic ivanp at yu.net
Mon Jan 22 00:43:34 UTC 2007


I have a straightforward question,

is it possible to screw-up cluster node(s) by issuing ntpdate while 
cluster is running?

I had random fencing of nodes (usually when load is low) and ...  
recently I discovered that nodes are syncronised to ntp server using 
crontab and ntpdate.
I know that ntpdate is all but not "gentle" and should be used only on 
system startup for "rude", prior to ntpd start, syncronisation.

I could go trough heartbeat routines and try to figure it out but just 
if someone already knows and is willing to share it?

Thanks.

-- 
Ivan Pantovic, System Engineer
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