@karthikeyan: Thanks for that info. So in the sample wordcount program using Hadoop pipes in c++ if i want to see data each node has got, I shd query namenode? Is namenode a class or something which contains information or which variable should I check out? Thanks
On Sat, Mar 31, 2012 at 2:23 AM, bharat b <[email protected]>wrote: > but, how can it split the data, if there are dependencies in job ? unless > we write parallel program, Does hadoop do any thing faster than usual > processor? > > > On Sat, Mar 31, 2012 at 10:32 AM, Karthikeyan V.B <[email protected]>wrote: > >> Hi, >> >> The NameNode splits the job into several tasks and submits to the >> different DataNode(i.e nodes) , the split size varies from 64KB to 128MB. >> The NameNode assigns the data split to a datanod. >> >> Namenode actually has a table to store the mappings of data node and >> block stored in it. >> >> it is possible to query the namenode and get data from it. >> >> Regards, >> Karthikeyan >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > > **Regards > * > * <[email protected]> > > Bharat B | M.Tech II | C.S.E | IITM > * > * > *Ph: +91 8056127652* > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- "People often say that motivation doesn't last. Well, neither does bathing - that's why we recommend it daily." -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
