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 • 7,667 views
0 votes
1 answer

In which directory Hadoop should be installed?

Apr 17, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,422 views
0 votes
2 answers

How to exit NameNode safe mode?

Apr 17, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,960 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 • 7,825 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 21,273 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 • 753 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 • 2,674 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 • 511 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 • 21,079 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 • 10,069 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 • 759 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 • 4,604 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 • 3,840 views
0 votes
1 answer

Getting error in command hdfs dfs -mkdir

Apr 15, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 3,266 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 • 3,659 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 • 1,054 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 • 3,580 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 • 1,189 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 • 7,302 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 • 2,548 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 • 74,075 views
0 votes
3 answers

Cloudera Hadoop - Daemons not running

Apr 6, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,734 views
0 votes
1 answer

Writing File into HDFS using spark scala

Apr 6, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 17,337 views
0 votes
1 answer

Apache Hadoop Yarn example program

Apr 4, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,198 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 • 1,538 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 • 2,214 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 • 657 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 • 694 views
0 votes
1 answer

Hdfs Service Systemd - startup

Mar 29, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,947 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 • 62,897 views
0 votes
1 answer

hadoop: command not found

Mar 28, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 14,584 views
0 votes
1 answer

What is Hadoop Distribution ?

Mar 27, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 949 views
0 votes
1 answer

Moving data to hdfs using copyFromLocal command

Mar 27, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 10,152 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 • 17,109 views
0 votes
1 answer

What is hadoop.tmp.dir ?

Mar 26, 2018 in Big Data Hadoop by DareDev
 • 6,890 points • 6,950 views
0 votes
1 answer

Relationship between Spark, Hadoop and Cassandra?

Mar 26, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 2,520 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 • 9,006 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 • 2,322 views
0 votes
1 answer

Access DFS through Java API

Mar 23, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,929 views
0 votes
1 answer

How to integrate Hadoop with Elasticsearch?

Mar 22, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 1,596 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 • 71,943 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 • 9,786 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 • 772 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 • 33,782 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 • 892 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 • 7,283 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 • 2,359 views
–1 vote
1 answer

Hadoop dfs -ls command?

Mar 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 4,616 views
+2 votes
11 answers

hadoop fs -put command?

Mar 16, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 108,853 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

Mar 16, 2018 in Data Analytics by kurt_cobain
 • 9,350 points • 2,540 views
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