Q71
Which of the following scripts that generate more than three MapReduce jobs?
A.
a = load '/mapred/history/done' using HadoopJobHistoryLoader() as (j:map[], m:map[], r:map[]);
b = group a by (j#'PIG_SCRIPT_ID', j#'USER', j#'JOBNAME');
c = for b generate group.2, COUNT(a);
d = filter c by $2 > 3;
dump d;
b = group a by (j#'PIG_SCRIPT_ID', j#'USER', j#'JOBNAME');
c = for b generate group.2, COUNT(a);
d = filter c by $2 > 3;
dump d;
B.
a = load '/mapred/history/done' using HadoopJobHistoryLoader() as (j:map[], m:map[], r:map[]);
b = display a by (j#'PIG_SCRIPT_ID', j#'USER', j#'JOBNAME');
c = foreach b generate group.2, COUNT(a);
d = filter c by $2 > 3;
dump d;
b = display a by (j#'PIG_SCRIPT_ID', j#'USER', j#'JOBNAME');
c = foreach b generate group.2, COUNT(a);
d = filter c by $2 > 3;
dump d;
C.
a = load '/mapred/history/done' using HadoopJobHistoryLoader() as (j:map[], m:map[], r:map[]);
b = group a by (j#'PIG_SCRIPT_ID', j#'USER', j#'JOBNAME');
c = foreach b generate group.2, COUNT(a);
d = filter c by $2 > 3;
dump d;
Answerb = group a by (j#'PIG_SCRIPT_ID', j#'USER', j#'JOBNAME');
c = foreach b generate group.2, COUNT(a);
d = filter c by $2 > 3;
dump d;
D.
None of the mentioned
Answer: Option C
Solution
Answer: Option C
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