Recent questions tagged hdfs

0 votes
1 answer

Not able to find HDFS directory on my system?

Apr 17, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 7,661 views
0 votes
1 answer

In which directory Hadoop should be installed?

Apr 17, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,419 views
0 votes
2 answers

How to exit NameNode safe mode?

Apr 17, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,957 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 • 7,819 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 21,266 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 • 747 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 • 2,669 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 • 507 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 • 21,064 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 • 10,063 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 • 755 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 • 4,598 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 • 3,832 views
0 votes
1 answer

Getting error in command hdfs dfs -mkdir

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 3,262 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
 • 2,090 points • 3,656 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 • 1,048 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 • 3,574 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 • 1,185 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 • 7,299 views
0 votes
1 answer

What is the difference between a zero reducer and identity reducer in Hadoop Mapreduce?

Apr 10, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,539 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
 • 9,350 points • 74,034 views
0 votes
3 answers

Cloudera Hadoop - Daemons not running

Apr 6, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,728 views
0 votes
1 answer

Writing File into HDFS using spark scala

Apr 6, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 17,332 views
0 votes
1 answer

Apache Hadoop Yarn example program

Apr 4, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,193 views
0 votes
1 answer

Hadoop: TaskTracker and JobTracker don't start with start-dfs.sh

Apr 4, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,533 views
0 votes
1 answer

When is an identity mapper/reducer used?

Apr 3, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 2,211 views
0 votes
1 answer

What is the benefit of using CDH over other Distributors?

Mar 29, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 654 views
0 votes
1 answer

Is there a good online tutorial for Hadoop development on a Windows 7 machine?

Mar 29, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 689 views
0 votes
1 answer

Hdfs Service Systemd - startup

Mar 29, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,943 views
0 votes
11 answers

What is the default Namenode port of HDFS. Is it 8020 or 9000 or 50070?

Mar 29, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 62,870 views
0 votes
1 answer

hadoop: command not found

Mar 28, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 14,570 views
0 votes
1 answer

What is Hadoop Distribution ?

Mar 27, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 943 views
0 votes
1 answer

Moving data to hdfs using copyFromLocal command

Mar 27, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 10,146 views
0 votes
1 answer

Copy file from HDFS to the local file system

Mar 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 17,100 views
0 votes
1 answer

What is hadoop.tmp.dir ?

Mar 26, 2018 in Big Data Hadoop by DareDev
 • 6,890 points • 6,941 views
0 votes
1 answer

Relationship between Spark, Hadoop and Cassandra?

Mar 26, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 2,512 views
+1 vote
1 answer

Where to set hadoop.tmp.dir? core-site.xml or hdfs-site.xml?

Mar 26, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 9,004 views
0 votes
3 answers

Can we run Spark without using Hadoop?

Mar 23, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 2,314 views
0 votes
1 answer

Access DFS through Java API

Mar 23, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,924 views
0 votes
1 answer

How to integrate Hadoop with Elasticsearch?

Mar 22, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 1,591 views
+11 votes
11 answers

Hadoop “Unable to load native-hadoop library for your platform” warning

Mar 22, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 71,925 views
0 votes
1 answer

Is there a way to copy data from one one Hadoop distributed file system(HDFS) to another HDFS?

Mar 22, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 9,780 views
0 votes
1 answer

Is there any Relationship between Hadoop and Databases?

Mar 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 768 views
0 votes
13 answers

What is the difference between Hadoop/HDFS & HBase?

Mar 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 33,771 views
0 votes
1 answer

How can I download hadoop documentation for a specific version?

Mar 21, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 887 views
0 votes
1 answer

Where can I find hadoop-streaming.jar JAR file?

Mar 21, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 7,274 views
+1 vote
1 answer

I installed Spark but while executing command, I am getting ‘hadoop’ command not found error?

Mar 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,347 views
–1 vote
1 answer

Hadoop dfs -ls command?

Mar 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 4,611 views
+2 votes
11 answers

hadoop fs -put command?

Mar 16, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 108,828 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

Mar 16, 2018 in Data Analytics by kurt_cobain
 • 9,350 points • 2,534 views
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