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Caching of containers

Question asked by hastings on Jul 14, 2011
Latest reply on Jul 14, 2011 by srivas
There is mention of caching of container in the presentation that was done recently. I am referring to the these slides - http://www.slideshare.net/mcsrivas/design-scale-and-performance-of-maprs-distribution-for-hadoop. My question is what do you folks mean by saying that it takes 250 bytes of DRAM to cache a container. What is being cached here?

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