Recent questions tagged big-data

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Java MapReduce error saying No FileSystem for scheme:hdfs

May 9, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,323 views
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1 answer

“no such file or directory" in case of hadoop fs -ls

May 9, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 7,866 views
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1 answer

Is there any way to access Hadoop web UI in linux?

May 9, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 3,657 views
+1 vote
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How can we list files in HDFS directory as per timestamp?

May 8, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 11,357 views
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Does setup & clean methods in Hadoop MapReduce is executed after each task?

May 8, 2018 in Big Data Hadoop by king_of_code
 • 1,999 views
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1 answer

Cannot connect to Hive from MicroStrategy BI tool

May 8, 2018 in Big Data Hadoop by mac113
 • 1,022 views
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1 answer

Where does HDFS stores data on the local file system?

May 8, 2018 in Big Data Hadoop by code799
 • 15,859 views
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1 answer

Why Apache Pig is used instead of Hadoop?

May 8, 2018 in Big Data Hadoop by Meci Matt
 • 9,460 points • 2,212 views
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1 answer

ApplicationMaster in YARN Architecture

May 8, 2018 in Big Data Hadoop by Atul
 • 10,240 points • 1,071 views
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1 answer

How is Apache Spark different from the Hadoop approach?

May 7, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 998 views
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1 answer

Can we use HDFS to store git repositories?

May 7, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 1,218 views
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What is the default location of Hadoop log files & how can I change that location?

May 4, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 20,636 views
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1 answer

Submitting MapReduce job using jobConf object vs job object

May 4, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,677 views
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1 answer

Which Data Structure is used in case of Map Reduce?

May 4, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,306 views
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9 answers

Is there any way to check which Hadoop daemons are running?

May 4, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 45,546 views
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How to find the used cache in HDFS

May 4, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 2,097 views
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1 answer

What happend while formatting hadoop namenode?

May 4, 2018 in Big Data Hadoop by Atul
 • 10,240 points • 440 views
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Setting the Number of Map tasks and Reduce Tasks not Working

May 4, 2018 in Big Data Hadoop by Atul
 • 10,240 points • 1,254 views
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Where Big Data tools like Hadoop and Spark comes into picture when we talk about ETL?

May 3, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 428 views
+1 vote
12 answers

How to check size of HDFS directory?

May 3, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 46,252 views
0 votes
1 answer

After installing Hadoop on Windows7, NameNode failed to start

May 3, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 6,769 views
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1 answer

Hadoop giving java.io.IOException, in mkdir Java code.

May 3, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,296 views
0 votes
1 answer

Hadoop job getting executed in local mode only?

May 3, 2018 in Big Data Hadoop by Atul
 • 10,240 points • 2,144 views
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1 answer

Error while copying the file from local to HDFS

May 3, 2018 in Big Data Hadoop by Damon Salvatore
 • 5,980 points • 3,723 views
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1 answer

How to extract only few lines of data from HDFS?

May 2, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 10,867 views
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1 answer

How Sqoop and Tera Data Connector for Hadoop differ from each other?

May 2, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,302 views
0 votes
1 answer

NodeManager is not able to connect to the ResourceManager.

May 1, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 3,497 views
0 votes
1 answer

What are some of the famous visualization tools which can be integrated with Hadoop & Hive?

May 1, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,836 views
0 votes
1 answer

Why is Spark faster than Hadoop Map Reduce

Apr 30, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 1,131 views
0 votes
1 answer

What is the function of getLocalCacheArchives method?

Apr 29, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 570 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
 • 2,080 points • 1,886 views
0 votes
1 answer

What is the command to navigate in HDFS?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 5,263 views
0 votes
1 answer

How can I write text in HDFS using CMD?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 1,819 views
0 votes
1 answer

Changing hostname in fs.default.name property puts Hadoop in safemode

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 2,031 views
+1 vote
2 answers

What does hadoop fs -du command gives as output?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 5,540 views
0 votes
1 answer

Which is better Neo4j or HBASE ?

Apr 26, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 596 views
+1 vote
1 answer

Why is jar file required to execute a MR code instead of class file?

Apr 24, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,036 views
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1 answer

How to perform Near-real time analytics using Hadoop?

Apr 24, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 601 views
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1 answer

How do we authenticate user from http.signature.secret file?

Apr 24, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,607 views
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1 answer

What is the slaves file configuration in Hadoop?

Apr 24, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 4,131 views
0 votes
1 answer

GUI for using Hadoop

Apr 23, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,768 views
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1 answer

Namenode not getting started

Apr 23, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,017 views
0 votes
1 answer

How to transfer data from Netezza to HDFS using Apache Sqoop?

Apr 23, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,496 views
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1 answer

How to checkout Hadoop 2.6.0 from git

Apr 23, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 629 views
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1 answer

What does count command in Hadoop tells?

Apr 23, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,515 views
0 votes
1 answer

What is the $HIVE_HOME in Hortonworks sandbox

Apr 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,542 views
0 votes
1 answer

Killing an Application from ResourceManager Web UI

Apr 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,497 views
0 votes
1 answer

Are some Pig real time use cases available?

Apr 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 692 views
0 votes
1 answer

Hadoop demo Code not working

Apr 20, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 635 views
0 votes
1 answer

How to work with distributed cache in Hadoop?

Apr 20, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,184 views
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