Hey, For a more detailed discussion of how to use memcached for this purpose, see the paper "Low-Latency, High-Throughput Access to Static Global Resources within the Hadoop Framework": http://www.umiacs.umd.edu/~jimmylin/publications/Lin_etal_TR2009.pdf.
Regards, Jeff On Fri, May 8, 2009 at 2:49 PM, jason hadoop <jason.had...@gmail.com> wrote: > Most of the people with this need are using some variant of memcached, or > other distributed hash table. > > On Fri, May 8, 2009 at 10:07 AM, Joe <joe_...@yahoo.com> wrote: > > > > > Hi, > > As a newcomer to Hadoop, I wonder any efficient way to support shared > > content among all mappers. For example, to implement an neural network > > algorithm, I want the NN data structure accessible by all mappers. > > Thanks for your comments! > > - Joe > > > > > > > > > > > -- > Alpha Chapters of my book on Hadoop are available > http://www.apress.com/book/view/9781430219422 > www.prohadoopbook.com a community for Hadoop Professionals >