Recent questions tagged big-data

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How does Hadoop accesses the files which are distributed among different boundaries?

May 7, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 745 views
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1 answer

Method to schedule the number of Mappers and Reducers in a Hadoop MapReduce Tsk.

Apr 25, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 819 views
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1 answer

Difference between Hadoop Mapreduce in MongoDB versus MangoDB's built-in MapReduce

Apr 24, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,921 views
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1 answer

How can Hadoop process the records that are split across the block boundaries?

Apr 15, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,906 views
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2 answers

Which one among the both MapRed and MapReduce is considered better to create a Hadoop job?

Mar 7, 2019 in Big Data Hadoop by ravi
 • 220 points • 976 views
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1 answer

What is the difference between MapRed and MapReduce?

Mar 6, 2019 in Big Data Hadoop by ravi
 • 220 points • 2,130 views
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1 answer

Apache Spark vs MapReduce

Dec 19, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 967 views
–1 vote
1 answer

Where does reduce take place in Hadoop MapReduce?

Dec 18, 2018 in Big Data Hadoop by digger
 • 26,740 points • 1,387 views
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1 answer

What is distributed Cache in MapReduce Framework ?

Dec 7, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,713 views
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1 answer

Why Hadoop is not implemented using MPI?

Dec 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 912 views
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1 answer

How to include third party library in Python MapReduce?

Nov 27, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 863 views
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1 answer

Hadoop MapReduce intermediate output

Nov 16, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 708 views
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1 answer

Job and Task Scheduling In Hadoop

Oct 31, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,865 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 • 930 views
0 votes
1 answer

Hadoop: No Such Method Exception

Oct 26, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,836 views
0 votes
5 answers

Hadoop hdfs: list all files in a directory and its subdirectories

Oct 26, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 18,447 views
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3 answers

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

Oct 24, 2018 in Big Data Hadoop by digger
 • 26,740 points • 1,973 views
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1 answer

What is Hadoop Performance Tuning?

Oct 24, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 909 views
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1 answer

What is -cp command in hadoop? How it works?

Oct 17, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,200 views
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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 • 2,288 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 • 4,341 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 • 975 views
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1 answer

Is MapR a substitute for MapReduce?

Oct 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,279 views
0 votes
1 answer

What is Hadoop Speculative task execution?

Oct 3, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,186 views
0 votes
1 answer

What is the difference between Writable & WritableComparable in Hadoop?

Oct 3, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 7,902 views
0 votes
1 answer

Iterate twice on values (MapReduce)

Oct 1, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,168 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 • 1,400 views
0 votes
1 answer

Hadoop fs mkdir and testing existence FileSystem.exists

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,361 views
0 votes
1 answer

Why am I getting error as hdfs dfs -mkdir, No such file or directory when I create a directory?

Sep 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 15,679 views
0 votes
1 answer

Can we integrate Hadoop with Python?

Aug 23, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,723 views
0 votes
1 answer

How do I print hadoop properties in command line?

Aug 23, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,653 views
0 votes
1 answer

What is the difference between local file system commands touch and touchz?

Aug 14, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,548 views
0 votes
1 answer

Can I have a list of property files used in Hadoop Framework?

Aug 14, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 874 views
0 votes
1 answer

Difference between Spark ML & Spark MLlib package

Jul 4, 2018 in Apache Spark by code799
 • 2,193 views
0 votes
2 answers

Hadoop fs -stat command

Jun 13, 2018 in Big Data Hadoop by shams
 • 3,670 points • 11,413 views
0 votes
1 answer

SQLInterpreter in Spark

Jun 7, 2018 in Apache Spark by shams
 • 3,670 points • 766 views
0 votes
1 answer

Unable to spawn executor on remote worker node using multinode spark cluster in spark-shell

Jun 4, 2018 in DevOps Tools by ffdfd
 • 5,550 points • 2,035 views
0 votes
1 answer

How to import the dependencies of Spark MLlib into eclipse project?

May 31, 2018 in Apache Spark by hack236
 • 2,021 views
0 votes
1 answer

Spark Machine Learning pipeline works fine in Spark 1.6, but it gives error when executed on Spark 2.x?

May 31, 2018 in Apache Spark by hack236
 • 1,014 views
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5 answers

How to change the spark Session configuration in Pyspark?

May 29, 2018 in Apache Spark by code799
 • 125,869 views
0 votes
1 answer

Locating Scala installation for Spark

May 25, 2018 in AWS by Flying geek
 • 3,280 points • 968 views
0 votes
1 answer

Getting error while connecting zookeeper in Kafka - Spark Streaming integration

May 24, 2018 in Apache Spark by user-code
 • 2,823 views
0 votes
1 answer

How to set keys & access tokens for Twitter Spark streaming?

May 24, 2018 in Apache Spark by coder_jazz
 • 1,760 views
0 votes
1 answer

What is the command to check the number of cores in Spark?

May 17, 2018 in Big Data Hadoop by code799
 • 7,069 views
0 votes
1 answer

How can anyone recover deleted HDFS data?

May 16, 2018 in Big Data Hadoop by code799
 • 10,962 views
0 votes
1 answer

Where does HDFS stores data on the local file system?

May 8, 2018 in Big Data Hadoop by code799
 • 16,748 views
0 votes
1 answer

How to find the used cache in HDFS

May 4, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,526 views
0 votes
1 answer

What is the command to find the free space in HDFS?

Apr 29, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,250 views
0 votes
1 answer

How can I write text in HDFS using CMD?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,371 views
+1 vote
2 answers

What does hadoop fs -du command gives as output?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 5,920 views
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