[hobbit] large system time change freezes hobbit client

Daniel Bourque dbourque at weatherdata.com
Fri Jun 15 00:35:44 CEST 2007


On unix systems, that shouldn't cause a problem because the time is kept 
in seconds since epoch. Timezones are just masks that changes according 
to DST rules.

On windows, it's probably going to be a problem, but I don't know enough 
about the bbwin to confirm that.

-Dan

Jason Chambers wrote:

>Time jumps backwards and forwards in some places for daylight savings.
>Is this going to cause issues?
>
>Jason Chambers     I.T. Helpdesk Associate      Geosoft Inc.
>85 Richmond St W - Toronto, ON, CA - M5H 2C9 - Tel: 416.369.0111 ext 344
>- Fax: 416.369.9599
>
>
>-----Original Message-----
>From: Henrik Stoerner [mailto:henrik at hswn.dk] 
>Sent: June-14-07 1:44 AM
>To: hobbit at hswn.dk
>Subject: Re: [hobbit] large system time change freezes hobbit client
>
>On Wed, Jun 13, 2007 at 02:31:42PM -0500, Daniel Bourque wrote:
>  
>
>>   I noticed that a large clock change tends to stop the hobbit client
>>    
>>
>
>  
>
>>from sending status messages to the server. For example, if a system 
>>boots with the wrong time, I get cpu alerts, I go restart ntpd on it, 
>>then I won't get anymore status until I restart hobbit-client on that 
>>system...
>>    
>>
>
>This was reported a few days ago for hobbitlaunch on the Hobbit server,
>but yes - the same issue occurs on clients.
>
>What happens is basically that hobbitlaunch remembers when it last
>ran one of the tasks, and then it will run it again when the time
>becomes (last_time_it_ran + interval). So if you set the current time
>back, it will stop running for some time.
>
>Clocks just aren't supposed to jump backwards ... 
>
>There are a couple of ways to fix this. One is in the current snapshot,
>but I might do it differently.
>
>
>Regards,
>Henrik
>
>
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>  
>
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