Recent questions tagged mapreduce

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Problem while running MapReduce code.

1 day ago in Big Data Hadoop by Haman
 • 4 views
0 votes
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MapReduce to count alphabets

1 day ago in Big Data Hadoop by Quill
 • 6 views
0 votes
1 answer

Map-reduce code for finding average salary

2 days ago in Big Data Hadoop by Janan
 • 7 views
0 votes
0 answers

hey,can you help me

Apr 11 in Big Data Hadoop by faris
 • 23 views
0 votes
1 answer

Why is Spark map output compressed?

Feb 23 in Apache Spark by Sanam
 • 21 views
0 votes
1 answer

How to run MapReduce program?

Feb 21 in Big Data Hadoop by Shashi
 • 56 views
0 votes
0 answers

How Pig programming gets converted into MapReduce jobs?

Feb 21 in Big Data Hadoop by Neha
 • 6,140 points • 9 views
0 votes
1 answer

How to select all columns with group by?

Feb 18 in Apache Spark by Ishan
 • 43 views
0 votes
1 answer

Doubt in word count query

Feb 18 in Big Data Hadoop by Sanam
 • 13 views
0 votes
1 answer

MapReduce: Map Value Mismatch error

Feb 13 in Big Data Hadoop by Jeeva
 • 16 views
0 votes
1 answer

Mapreduce problem with output part file

Feb 7 in Big Data Hadoop by Neervi
 • 37 views
0 votes
1 answer

How will you submit job as particular user?

Jan 30 in Big Data Hadoop by Amulya
 • 25 views
0 votes
1 answer

How to decide number of mappers?

Jan 30 in Big Data Hadoop by Raksha
 • 27 views
0 votes
1 answer

Does Hadoop merge the output files after reduce phase?

Jan 22 in Big Data Hadoop by digger
 • 27,620 points • 67 views
0 votes
1 answer

Why is using Combiner function not preferred in shuffling?

Jan 22 in Big Data Hadoop by slayer
 • 29,040 points • 12 views
0 votes
1 answer

How to reduce shuffling cost in map reduce?

Jan 22 in Big Data Hadoop by slayer
 • 29,040 points • 46 views
0 votes
1 answer

"main" java.lang.ClassNotFoundException: WordCount

Jan 21 in Big Data Hadoop by digger
 • 27,620 points • 49 views
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Unable to execute the jar file wordcount.

Jan 21 in Big Data Hadoop by digger
 • 27,620 points • 53 views
0 votes
1 answer

Hadoop MapReduce word count program failed

Jan 21 in Big Data Hadoop by digger
 • 27,620 points • 32 views
0 votes
1 answer

Jobtracker and tasktracker is nor running.

Jan 18 in Big Data Hadoop by digger
 • 27,620 points • 47 views
0 votes
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Not able to run java mapreduce

Jan 10 in Big Data Hadoop by digger
 • 27,620 points • 34 views
0 votes
1 answer

Not able to execute mapreduce code

Jan 7 in Big Data Hadoop by digger
 • 27,620 points • 17 views
0 votes
1 answer

Changing map and reduce slots

Jan 4 in Big Data Hadoop by digger
 • 27,620 points • 21 views
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1 answer

Pig mapreduce mode vs local mode?

Jan 4 in Big Data Hadoop by slayer
 • 29,040 points • 33 views
0 votes
1 answer

Mapreduce shuffle and sort

Dec 27, 2018 in Big Data Hadoop by slayer
 • 29,040 points • 27 views
0 votes
1 answer

Mapreduce in Python

Dec 20, 2018 in Big Data Hadoop by digger
 • 27,620 points • 24 views
0 votes
1 answer

Running into an issue while running the mapred job on the server

Dec 20, 2018 in Big Data Hadoop by slayer
 • 29,040 points • 32 views
0 votes
1 answer

If there are two joins in hive, how many mapreduce jobs will run?

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,040 points • 53 views
0 votes
1 answer

Apache Spark vs MapReduce

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,040 points • 56 views
0 votes
1 answer

What is the difference between MapReduce and YARN in Hadoop?

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,040 points • 152 views
0 votes
1 answer

Where does reduce take place in Hadoop MapReduce?

Dec 18, 2018 in Big Data Hadoop by digger
 • 27,620 points • 25 views
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