Re-cap of my eXtreme Scale Presentation at the 3/30 RTP WUG
TedKirby 0600004ET8 Visits (1975)
As noted earlier, I had the great opportunity to enjoy a nice dinner and meet some good and interesting WebSphere users at the 3-30 RTP WUG meeting. The facility was quite nice, and there were over 30 people in attendance. There were maybe 10 IBMers there, not surprising perhaps given the proximity to the WebSphere development lab in RTP. It's a great community, and I recommend that you get involved! My challenge was to cover and describe eXtreme Scale in a meaningful way in 15 minutes! I felt I accomplished the first objective, but the presentation grew to 20 minutes, and more with questions. The questions were good, and some became quite deep, insightful and detailed for an overview presentation! My slides are available here.
One thrust of the questioning was what are the entry points to usage and exploitation of eXtreme Scale. Some exploitation scenarios require more change and work to implement than others. Lan and I are working on a presentation to address just this topic, so look for it to appear soon!
There are many use cases for eXtreme Scale. The ones showing dramatic benefit have to do with the eXtreme cases, where partitioning smashes the scaling barrier. A drawback to implementation here is that the data model must be partitionable. The model may be so changed, but the work involved, and especially the impact on legacy systems, may be daunting. There are less-invasive ways to exploit eXtreme Scale, and these may be used in various places to provide relief. However, the bottom line is that if your data model is inherently not scalable, then you'll have a tough time scaling! By adopting a partitionable data model, eXtreme Scale allows you to smash your scaling barrier using commodity hardware. This paragraph is certainly fodder for future evangelist material.
For information and links to all things eXtreme Scale, see the Getting Started with eXtreme Scale Wiki.
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