[Deploying Sakai] Monitoring Server clocks

[David Horwitz]

I also had a concern about time based work flows (tests, assignments etc)

D

On 04/06/2011 03:44 PM, Raad Al-Rawi wrote:
> David
>
> Good point - we don't monitor this currently, but it's something that
> should be kept an eye on, especially if you run over https, as ssl  starts
> failing.
>
>
> Raad
>
> On 06-Apr-11 14:00, David Horwitz wrote:
>> Hi All,
>> A quick question: Do you monitor your server clocks for drift from an
> authoritative source?
>> The reason I ask is we had an issue on Monday where NTP had crashed on
> one node causing the server clock to drift alarmingly. This was causing,
> for instance, Turnitin submissions from that node to fail. I have
> written a little piece of code that checks the servers clock against the
> database and the remote ntp server and will generate an alert if it
> drifts more than 30s:
>> http://source.cet.uct.ac.za/svn/sakai/profilesearch/trunk/impl/src/java/za/ac/uct/sakai/healthcheck/ServerHealthCheck.java
> Any one else doing something like this?
>> David
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