Scyld is a master/slave system. [LWN.net]

Scyld is a master/slave system.

Posted Jul 22, 2005 1:04 UTC (Fri) by xoddam (subscriber, #2322)
In reply to: Healthcare Experts Question Open-Source Apps (LinuxInsider) by huffd
Parent article: Healthcare Experts Question Open-Source Apps (LinuxInsider)

It's not clear to me that the Scyld system allows a live kernel upgrade or migration of the 'master node' -- I'm wading through white papers and I haven't found it. This is a supercomputing cluster rather than a symmetric load-balancing database cluster, which is what medical information users would require.

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Master Node Redundancy is a Future Enhancement

Posted Jul 22, 2005 1:18 UTC (Fri) by xoddam (subscriber, #2322) [Link]

Got it, in the Future Enhancements section of the technical overview pdf:

Master Node Redundancy — Scyld is planning to update the operating system to support multiple master nodes in the cluster. This feature will allow the transparent switchover to a backup master node in the event that the original master node suffers a failure.

So it's a planned feature, not an exising one.