Recent questions tagged big-data

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Getting error in Hadoop: Output file already exist

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 8,577 views
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1 answer

HDFS Location in Hadoop?

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,092 views
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2 answers

Download & Install Cloudera parcels without being connected to internet?

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,799 views
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1 answer

Installing Hive & Hadoop in VM

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 4,469 views
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1 answer

How to print the content of a file in console present in HDFS?

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 5,931 views
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1 answer

Hadoop single node cluster set up issues

Apr 19, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 950 views
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Why Hadoop is tightly bound to linux?

Apr 19, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 731 views
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How to upload file to HDFS in Ubuntu

Apr 19, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,676 views
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1 answer

Map and Reduce task memory settings in Hadoop YARN

Apr 18, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,225 views
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1 answer

Hadoop for data migration

Apr 18, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,240 views
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1 answer

How to set the number of Map & Reduce tasks?

Apr 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,957 views
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1 answer

Setting Hive/Hadoop property using Hive Query

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,028 views
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1 answer

Getting error in Hadoop Streaming: Type mismatch in Key from Map

Apr 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,303 views
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1 answer

Replication Factor in Hadoop?

Apr 18, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,278 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 • 1,491 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 • 1,081 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 • 1,910 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 • 16,065 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 • 1,056 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 • 11,699 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
 • 9,350 points • 8,362 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
 • 2,090 points • 7,741 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 • 1,438 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 • 4,015 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 • 968 views
+1 vote
1 answer

http://localhost:50070 not working in HADOOP

Apr 16, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 42,165 views
0 votes
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 • 7,949 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 21,349 views
0 votes
1 answer

Is there a way to rebalance single Datanode in Hadoop.

Apr 15, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 804 views
0 votes
1 answer

Moving files in Hadoop using the Java API?

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,703 views
0 votes
1 answer

Deleting a directory with comma throwing an error

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 525 views
0 votes
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
 • 2,090 points • 21,202 views
0 votes
1 answer

Hadoop query regarding setJarByClass method of Job class

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,406 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
 • 2,090 points • 10,138 views
0 votes
1 answer

Files for Configuring HDFS in Hadoop 2.2.0?

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 795 views
0 votes
1 answer

Getting error in MapReduce job.setInputFormatClass

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,093 views
0 votes
2 answers

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

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 3,886 views
0 votes
2 answers

Command to check the Hadoop distribution as well as it’s version which is installed in my cluster

Apr 15, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 5,622 views
0 votes
1 answer

Getting error in command hdfs dfs -mkdir

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 3,303 views
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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
 • 2,090 points • 3,697 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 • 1,182 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 • 1,126 views
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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
 • 2,090 points • 1,480 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
 • 9,350 points • 2,118 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 • 3,624 views
0 votes
1 answer

How can we transfer a PDF file to HDFS?

Apr 13, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 1,241 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 • 12,612 views
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1 answer

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

Apr 12, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 5,020 views
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12 answers

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

Apr 12, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 30,092 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 • 7,353 views
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