Thanks for your replies so far. Based on your experience, are there any recommended open source load balancer available?
2010/11/4 Zeeshan Ali Shah <[email protected]> > I assume Amazon has same kind of notion "CLC" , how they managed to get > the load balance so effictevely ? > > Zeeshan > > On 11/04/2010 09:23 AM, Torsten Spindler wrote: > > On Thu, 2010-11-04 at 09:13 +0100, Björn Böttcher wrote: > > ... > > > > > >> Still open question: > >> But do the multiple CC/SC machines synchronize automatically? > >> > > Nope, the cluster controllers (CC) manage different clusters and do not > > synchronize any state between them. Same for the storage controllers > > (SC) that are attached to different clusters. > > > > Instead your payload on UEC (e.g. a webapp) needs to be tailored for > > fault tolerance, when a cluster fails. For example, a load balancer > > outside of UEC may direct requests to either cluster in your UEC. If one > > fails, the load balancer learns about it (maybe through a heartbeat?) > > and directs any requests to the remaining cluster(s). > > > > On your original question, the cloud controller (CLC) is indeed a single > > point of failure. Putting it on hardware that provides some resilience > > towards failures is best practice there. > > > > Torsten > > > > > > > > > > > -- > Regards > > Zeeshan Ali Shah > System Administrator > PDC-Center for High Performance Computing > KTH-Royal Institute of Technology , Sweden > +46 8 790 9115 > > > -- > Ubuntu-cloud mailing list > [email protected] > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-cloud >
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