Dear Sir, This is Maojun Wang ,from China Meteorological Administration Public Meteorological Service Center. Now i am using sparkSQL to count some Statistics，But now I am very very interested of how to implement some algorithm about Meteorological , like Interpolation algorithm,Kriging  Interpolation algorithm,Cressman Interpolation algorithm,IDW Interpolation algorithm and so on.   I questions:   1 What kind of algorithm can be written with spark?   Yours faithfully   MaojunWang ... View more

1 I use CDH4.4.0 and CM4.4.7 to make my hadoop cluster.   2 I Sing in the hbase cluster mathine,the execute the commond 'su hbase'   3 the result is :This account is currently not available.   4 What`s the reason for this ? for safty? ... View more

HQL: select count(station_id) from aws_new;   Result:   1  What`s the reseaon?   2  How should I do? ... View more