Re: [opennms-devel] Bug#: 2235

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On Feb 4, 2008, at 7:36 AM, Mike M wrote:
> I think this would be cool, especially since we occasionally see nodes
> kernel panic and reboot faster than OpenNMS can catch them.  My only
> concern is that sysuptime is not exactly reliable, especially for
> high-uptime Linux machines which have the jiffies rollover problem
> after 497 days.

Alejandro Galue wrote a sysUpTime tracker at Dev-Jam 2007 that does  
exactly what Rabie suggested.  I believe he checked it in to trunk  
during bug day this past weekend.

sysUpTime sucks for a number of reasons, but we can't count on having  
hrSystemUptime everywhere, and it's the best indicator we've got of a  
device or agent having been restarted that's not configured to send  
coldStart traps.  I think most people would be willing to accept an  
extra rescan every sixteen months in exchange for not missing an index  
shift.

- -jeff
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