Recent questions tagged mapreduce

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How to find the status of MapReduce Job?

Oct 16 in Big Data Hadoop by akhtar
 • 28,740 points • 13 views
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kernel: java: page allocation failure. order:4, mode:0x20

Apr 30 in Big Data Hadoop by akhtar
 • 28,740 points • 148 views
+1 vote
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Class not found exception in wordcount program in mapreduce

Oct 3, 2019 in Big Data Hadoop by Tarun
 • 160 points • 213 views
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1 answer

How to call MapReduce program using a simple Java Program?

Sep 4, 2019 in Big Data Hadoop by nitinrawat895
 • 10,950 points • 219 views
+1 vote
1 answer

sql exception when exporting

Sep 4, 2019 in Big Data Hadoop by Hemanth
 • 240 points • 595 views
0 votes
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Job failed as tasks failed. failedMaps

Aug 1, 2019 in Big Data Hadoop by Hemanth
 • 240 points • 2,284 views
0 votes
1 answer

Explanation to outputcollector vs context

Jul 26, 2019 in Big Data Hadoop by Jai
 • 222 views
0 votes
1 answer

Classes implementing InputFormat frequently

Jul 24, 2019 in Big Data Hadoop by Piyush
 • 56 views
0 votes
1 answer

Mapreduce: custom Input format

Jul 24, 2019 in Big Data Hadoop by Ritu
 • 238 views
0 votes
1 answer

Index LZO files

Jul 24, 2019 in Big Data Hadoop by Wasim
 • 119 views
0 votes
1 answer

Produce compressed data from map reduce

Jul 24, 2019 in Big Data Hadoop by sanjeev
 • 65 views
0 votes
1 answer

Running Mapreduce on compressed data

Jul 24, 2019 in Big Data Hadoop by Vidya
 • 64 views
0 votes
1 answer

How to Compress Map output?

Jul 24, 2019 in Big Data Hadoop by karan
 • 166 views
0 votes
1 answer

Input file name in the mapper in a Hadoop program

Jul 23, 2019 in Linux Administration by Upasana
 • 8,620 points • 846 views
0 votes
1 answer

Can we use different input and output format classes?

Jul 22, 2019 in Big Data Hadoop by Tilak
 • 87 views
0 votes
1 answer

Why do we use job.waitForCompletion(true) ?

Jul 22, 2019 in Big Data Hadoop by Raghu
 • 189 views
0 votes
1 answer

Output types of mapper and reducer does not match

Jul 22, 2019 in Big Data Hadoop by Karan
 • 949 views
0 votes
1 answer

Which one is better MR or Spark?

Jul 15, 2019 in Big Data Hadoop by Lohit
 • 286 views
0 votes
2 answers

How to set up Map and Reduce Tasks?

Jul 12, 2019 in Big Data Hadoop by nitinrawat895
 • 10,950 points • 444 views
0 votes
1 answer

Working of map function on data

Jul 11, 2019 in Apache Spark by Medha
 • 89 views
0 votes
1 answer

Difference b/w reduce and reduceLeft

Jun 20, 2019 in Big Data Hadoop by Keshav
 • 905 views
0 votes
1 answer

Multiple input for MapReduce job

Jun 20, 2019 in Big Data Hadoop by Kunal
 • 295 views
0 votes
1 answer

Error: Container is running beyond Memory Limits

Jun 20, 2019 in Big Data Hadoop by nitinrawat895
 • 10,950 points • 2,534 views
0 votes
1 answer

In Which cluster(Dev or Prod) we test the job?

Jun 20, 2019 in Big Data Hadoop by Manish
 • 82 views
0 votes
1 answer

Command use to kill the job in MapReduce.

Jun 14, 2019 in Big Data Hadoop by rajiv
 • 89 views
0 votes
1 answer

How to see the history of Job output-dir in MapReduce?

Jun 14, 2019 in Big Data Hadoop by sahit
 • 171 views
0 votes
1 answer

Command to see the status of MapReduce job?

Jun 14, 2019 in Big Data Hadoop by Mahish
 • 579 views
0 votes
1 answer

How to print the counter value in MapReduce?

Jun 14, 2019 in Big Data Hadoop by liza
 • 119 views
0 votes
0 answers

Command to initiate MapReduce which provide decent UI?

Jun 14, 2019 in Big Data Hadoop by Rachna
 • 78 views
0 votes
1 answer

Explain what is WebDAV in Hadoop?

Jun 10, 2019 in Big Data Hadoop by jina
 • 191 views
0 votes
1 answer

Explain what does the conf.setMapper Class do?

Jun 10, 2019 in Big Data Hadoop by sekhar
 • 96 views
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