This is really good ! Thanks for sharing this.
This comment has been removed by the author.
nice info for bigdata learnerscould u plz share how to write MapReduce algorithms.....what are MR algorithms
Hi,I am in the beginning stage to learn hadoop.I tried PDF in pig its working.where i need to write a code for macro.see the example below:Macro Definition:DEFINE call_Macro(B1)returns Ans{D = GROUP $B1 BY Class;$Ans = FOREACH D GENERATE group,SUM(B.Marks);};The below query need to write in grunt> shell.Macro Declartion part:A = load '/home/hduser/stud.txt' as (StudId:int,StudName:chararray,Class:int,Marks:double);B = FOREACH A GENERATE $2,$3;C = call_Macro(B);STORE C INTO '/home/hduser/call_out1';
It is really a great work and the way in which you are sharing the knowledge is excellent.Thanks for your informative articleHadoop Online TrainingData Science Online Training
This is really good ! Thanks for sharing this.
ReplyDeleteThis comment has been removed by the author.
ReplyDeletenice info for bigdata learners
ReplyDeletecould u plz share how to write MapReduce algorithms.....what are MR algorithms
Hi,
ReplyDeleteI am in the beginning stage to learn hadoop.
I tried PDF in pig its working.
where i need to write a code for macro.
see the example below:
Macro Definition:
DEFINE call_Macro(B1)
returns Ans
{
D = GROUP $B1 BY Class;
$Ans = FOREACH D GENERATE group,SUM(B.Marks);
};
The below query need to write in grunt> shell.
Macro Declartion part:
A = load '/home/hduser/stud.txt' as (StudId:int,StudName:chararray,Class:int,Marks:double);
B = FOREACH A GENERATE $2,$3;
C = call_Macro(B);
STORE C INTO '/home/hduser/call_out1';
It is really a great work and the way in which you are sharing the knowledge is excellent.Thanks for your informative article
ReplyDeleteHadoop Online Training
Data Science Online Training