Recent questions tagged mapreduce

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Pig mapreduce mode vs local mode?

Jan 4, 2019 in Big Data Hadoop by slayer
 • 29,370 points • 4,742 views
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Difference between hive.exec.compress.output=true; and mapreduce.output.fileoutputformat.compress=true;

Dec 28, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 6,797 views
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1 answer

Mapreduce shuffle and sort

Dec 27, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,367 views
–1 vote
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Mapreduce in Python

Dec 21, 2018 in Big Data Hadoop by digger
 • 26,740 points • 1,759 views
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Running into an issue while running the mapred job on the server

Dec 20, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,182 views
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If there are two joins in hive, how many mapreduce jobs will run?

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 7,751 views
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Hadoop MapReduce wordcount "type job is not applicable for the arguments" error

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,641 views
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1 answer

Apache Spark vs MapReduce

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,006 views
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What is the difference between MapReduce and YARN in Hadoop?

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 6,812 views
–1 vote
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Where does reduce take place in Hadoop MapReduce?

Dec 18, 2018 in Big Data Hadoop by digger
 • 26,740 points • 2,090 views
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MapReduce "cannot be resolved to a type" error

Dec 18, 2018 in Big Data Hadoop by digger
 • 26,740 points • 2,262 views
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1 answer

Executing mapper and reducer individually

Dec 18, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,361 views
+1 vote
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Hadoop Map Reduce: java.lang.reflect.InvocationTargetException

Dec 17, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,388 views
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Junit test for Map Reduce Hadoop

Dec 17, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 3,271 views
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1 answer

Hadoop mapreduce java: NullPoint Exception

Dec 14, 2018 in Big Data Hadoop by digger
 • 26,740 points • 1,695 views
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What is distributed Cache in MapReduce Framework ?

Dec 7, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,589 views
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Hadoop mapreduce error: apache.hadoop.mapred.FileAlreadyExistsException: Output directory

Dec 5, 2018 in Big Data Hadoop by digger
 • 26,740 points • 3,845 views
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Why Hadoop is not implemented using MPI?

Dec 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,550 views
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1 answer

Hadoop Mapper is failed because of the following error - “Container killed by the ApplicationMaster”

Dec 1, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 5,974 views
0 votes
1 answer

How to include third party library in Python MapReduce?

Nov 27, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,640 views
0 votes
1 answer

Not able to run mapreduce job. Attempt failes error

Nov 22, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,994 views
0 votes
1 answer

What is the usage of Configured class in Hadoop programs?

Nov 22, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,199 views
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1 answer

In Hadoop MapReduce, how can i set an Object as the Value for Map output?

Nov 21, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,740 views
0 votes
1 answer

Hadoop MapReduce intermediate output

Nov 16, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,260 views
0 votes
1 answer

Job and Task Scheduling In Hadoop

Oct 31, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,521 views
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1 answer

Hadoop: How to Group mongodb - mapReduce output?

Oct 31, 2018 in Big Data Hadoop by digger
 • 26,740 points • 1,566 views
0 votes
1 answer

Hadoop: No Such Method Exception

Oct 26, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,486 views
0 votes
3 answers

How to specify KeyValueTextInputFormat Separator in Hadoop-.20 api?

Oct 24, 2018 in Big Data Hadoop by digger
 • 26,740 points • 3,066 views
0 votes
1 answer

What is Hadoop Performance Tuning?

Oct 24, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,597 views
0 votes
1 answer

What is the best way to integrate SAS with Hadoop without losing the parallel processing capacity of Hadoop

Oct 16, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,055 views
+4 votes
3 answers

Unable to find file error- while Streaming Hadoop

Oct 15, 2018 in Big Data Hadoop by digger
 • 26,740 points • 5,885 views
0 votes
1 answer

Is it possible to integrate Kdb+ and hadoop?

Oct 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,638 views
0 votes
1 answer

Is MapR a substitute for MapReduce?

Oct 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,133 views
0 votes
1 answer

What is Hadoop Speculative task execution?

Oct 3, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,978 views
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1 answer

What is the difference between Writable & WritableComparable in Hadoop?

Oct 3, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 9,561 views
0 votes
1 answer

Iterate twice on values (MapReduce)

Oct 1, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 3,049 views
0 votes
1 answer

When I try to connect to Hadoop, I get a error as -"Connecting to Resource Manager failed".

Sep 28, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,217 views
0 votes
1 answer

Does map/reduce merge output files after reduce phase?

Sep 25, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,577 views
0 votes
1 answer

How to pass large records to map/reduce tasks?

Sep 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,510 views
0 votes
1 answer

Integration of Hadoop with Mongo DB concept

Sep 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,541 views
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1 answer

What is Dumbo MapReduce in Hadoop?

Sep 23, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,825 views
0 votes
1 answer

What is Modeling data in Hadoop and how to do it?

Sep 19, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,679 views
0 votes
2 answers

Is there a .NET equivalent to Apache Hadoop?

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,836 views
0 votes
1 answer

What is Custom partitioner in Hadoop? How to write partition function ?

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,402 views
0 votes
1 answer

What is the difference between Hadoop MapReduce and built-in MapReduce?

Sep 11, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,821 views
0 votes
1 answer

How to format the output being written by MapReduce in Hadoop?

Sep 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,872 views
0 votes
1 answer

What is the best functional language to do Hadoop Map-Reduce?

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,719 views
0 votes
1 answer

What are the options for hadoop on scala?

Aug 22, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,471 views
0 votes
1 answer

What are the problems in creating volume in mapr hadoop?

Aug 22, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,964 views
0 votes
1 answer

How hadoop command works with javac?

Aug 17, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 3,846 views
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