Recent questions tagged bigdata

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Getting error while building Hadoop core jar using ant.

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 776 views
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1 answer

How can I use my host machine’s web browser to check my HDFS services running in the VM?

Apr 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,097 views
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1 answer

What are the different ways to load data from Hadoop to Azure Data Lake?

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 904 views
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1 answer

How to tune Spark jobs & optimize the performance?

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,685 views
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2 answers

Hadoop is not able to find jps command

Apr 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 14,140 views
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1 answer

Why am I not able to see the Hadoop daemons that are running?

Apr 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 808 views
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2 answers

How can I list NameNode & DataNodes from any machine in the Hadoop cluster?

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 11,153 views
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1 answer

can't find start-all.sh in hadoop installation

Apr 17, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 7,515 views
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1 answer

Not able to find HDFS directory on my system?

Apr 17, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 7,107 views
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1 answer

In which directory Hadoop should be installed?

Apr 17, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,178 views
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2 answers

How to exit NameNode safe mode?

Apr 17, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,517 views
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1 answer

Is there any way to write "map only" Hadoop jobs ?

Apr 16, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 669 views
+1 vote
1 answer

http://localhost:50070 not working in HADOOP

Apr 16, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 38,861 views
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2 answers

Meaning of fs.defaultFS property in core-site.xml in hadoop

Apr 15, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 7,061 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 20,579 views
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1 answer

Moving files in Hadoop using the Java API?

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 2,482 views
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1 answer

Deleting a directory with comma throwing an error

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 403 views
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11 answers

What is the command to start Job history server in Hadoop 2.x & how to get its UI?

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 19,730 views
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2 answers

Hadoop query regarding setJarByClass method of Job class

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 2,035 views
0 votes
1 answer

Best way of starting & stopping the Hadoop daemons with command line

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 9,551 views
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1 answer

Files for Configuring HDFS in Hadoop 2.2.0?

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 500 views
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1 answer

Getting error in MapReduce job.setInputFormatClass

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 1,855 views
0 votes
1 answer

How can I put file to HDFS directly without copying it local disk?

Apr 15, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 4,251 views
0 votes
2 answers

start-dfs.sh command is not starting Hadoop JobTracker & TaskTracker

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 3,413 views
0 votes
1 answer

Getting error in command hdfs dfs -mkdir

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 2,849 views
0 votes
1 answer

I am getting error while starting the Hadoop Daemons i.e. ResourceManger & NodeManager in Hadoop 3

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 3,292 views
0 votes
1 answer

Why Java Code in Hadoop uses own Data Types instead of basic Data types?

Apr 15, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 885 views
0 votes
1 answer

How to migrate/ change Hadoop 1.x maven project to Hadoop 2.x?

Apr 15, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 773 views
0 votes
1 answer

Why ResourceManager crashes after sometime or while accessing HDFS in Hadoop 2.8.1 and Ubuntu 16.04?

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 1,154 views
0 votes
1 answer

How do I connect my Spark based HDInsight cluster to my blob storage?

Apr 15, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 1,935 views
0 votes
1 answer

What are the various ways to import files into HDFS?

Apr 13, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,248 views
0 votes
1 answer

How can we transfer a PDF file to HDFS?

Apr 13, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 854 views
0 votes
1 answer

What are SUCCESS and part-r-00000 files in Hadoop?

Apr 12, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 11,997 views
0 votes
1 answer

Is there any way to increase Java Heap size in Hadoop?

Apr 12, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 4,559 views
0 votes
12 answers

What is Zookeeper? What is the purpose of Zookeeper in Hadoop Ecosystem?

Apr 12, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 28,423 views
0 votes
1 answer

How to move data from Oracle database to Hadoop?

Apr 12, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 6,829 views
0 votes
1 answer

Is Hadoop a good open-source project to join?

Apr 12, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 437 views
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1 answer

Is java necessary for Hadoop?

Apr 11, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 450 views
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1 answer

How do I parse pdf file using MapReduce?

Apr 11, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,272 views
0 votes
1 answer

What is a importance of Hive ODBC Connector

Apr 10, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 663 views
0 votes
1 answer

Difference between Application Master and Application Manager?

Apr 10, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 13,880 views
0 votes
1 answer

Is there any way to load data from MySql to HDFS?

Apr 10, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 3,335 views
0 votes
1 answer

What are the hardware requirements for installing Hadoop on my Laptop?

Apr 10, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 7,616 views
0 votes
5 answers

What is the HDFS command to list all the files in HDFS according to the timestamp?

Apr 10, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 71,121 views
0 votes
1 answer

How to use custom FileInputFormat in MapReduce?

Apr 10, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 884 views
0 votes
1 answer

How do I include all the Hadoop dependencies using Maven?

Apr 10, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 6,013 views
0 votes
1 answer

IDE for writing and running hadoop jobs?

Apr 10, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,616 views
0 votes
3 answers

Cloudera Hadoop - Daemons not running

Apr 6, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,357 views
0 votes
1 answer

How to find hadoop distribution and version?

Apr 6, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,811 views
0 votes
1 answer

which one to choose for log analysis?

Apr 6, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 549 views
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