Recent questions tagged big-data

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1 answer

Differentiate: hadoop fs -text vs hadoop fs -cat vs hadoop fs -get

Dec 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,309 views
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1 answer

Why Hadoop is not implemented using MPI?

Dec 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 887 views
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How to get absolute path of files in a directory in Hadoop?

Dec 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,545 views
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Which is the easiest way for text analytics with hadoop?

Nov 22, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 900 views
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Small files and HDFS blocks

Nov 16, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,735 views
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1 answer

Hadoop: How to copy directory from local system to hdfs using Java code?

Nov 14, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 5,842 views
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1 answer

What's the right way to concatenate files and appending the New Line character in Python? Text or binary mode?

Nov 13, 2018 in Python by Nymeria
 • 3,560 points • 1,669 views
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Hadoop: What is the difference between `hadoop dfs` and `hadoop fs`?

Nov 6, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,829 views
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1 answer

What is Streaming data and Hadoop?

Nov 2, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,835 views
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1 answer

What does AM in “AM Container” mean in Hadoop

Nov 2, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,604 views
+2 votes
1 answer

Hadoop Jersey 1.x injection which is now not supported by Weblogic 12C

Oct 31, 2018 in Big Data Hadoop by Aparna
 • 140 points • 1,343 views
+1 vote
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What is difference between Hadoop Namenode HA and HDFS federation?

Oct 31, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,381 views
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1 answer

How to delete hdfs folder from java app?

Oct 30, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,135 views
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1 answer

Opening a HDFS file in browser

Oct 29, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 9,957 views
0 votes
5 answers

Hadoop hdfs: list all files in a directory and its subdirectories

Oct 26, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 18,339 views
0 votes
1 answer

How to fix corrupt HDFS FIles?

Oct 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,337 views
+2 votes
5 answers

Not able to start hadoop dfs

Oct 22, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 3,083 views
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1 answer

Google Hadoop Filesystem Encryption

Oct 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 646 views
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1 answer

Is Java alone Sufficient for Hadoop?

Oct 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 608 views
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1 answer

What is -cp command in hadoop? How it works?

Oct 17, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,171 views
0 votes
1 answer

How to configure Yarn from command line?

Oct 16, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,860 views
0 votes
1 answer

POC for Hadoop in real time scenario

Oct 11, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,589 views
0 votes
1 answer

Hadoop on OSX “Unable to load realm info from SCDynamicStore”

Oct 8, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 755 views
0 votes
2 answers

How to convert .txt file to Hadoop's sequence file format

Sep 28, 2018 in Big Data Hadoop by digger
 • 26,740 points • 3,559 views
0 votes
1 answer

How to write a file in HDFS using Java Programming language?

Sep 28, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,859 views
0 votes
1 answer

What should be the choice of database and what type of data format is suitable for Spark/hadoop?

Sep 28, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 970 views
+3 votes
5 answers

Hadoop DistributedCache is deprecated - what is the preferred API?

Sep 27, 2018 in Big Data Hadoop by digger
 • 26,740 points • 2,318 views
0 votes
1 answer

Permission denied at hdfs

Sep 27, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 2,580 views
0 votes
1 answer

How to exit name node from safe mode?

Sep 26, 2018 in Big Data Hadoop by digger
 • 26,740 points • 2,012 views
0 votes
1 answer

How to write a file in hdfs with Java?

Sep 26, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 4,256 views
0 votes
1 answer

Does map/reduce merge output files after reduce phase?

Sep 25, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 845 views
0 votes
1 answer

How to configure Hosts file for Hadoop Eco-System?

Sep 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,258 views
0 votes
1 answer

In Hadoop what does dfs replicate mean?

Sep 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,182 views
0 votes
1 answer

How to pass large records to map/reduce tasks?

Sep 25, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,450 views
0 votes
1 answer

What is Dumbo MapReduce in Hadoop?

Sep 23, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,033 views
0 votes
1 answer

What is the standard way to create files in your hdfs file-system?

Sep 23, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,599 views
0 votes
1 answer

Why Hadoop is not implemented using Message Passing Interface (MPI)?

Sep 21, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 782 views
0 votes
1 answer

How to add user in supergroup of hdfs in linux?

Sep 21, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 11,170 views
0 votes
1 answer

How to Query hdfs with Spark Sql

Sep 20, 2018 in Blockchain by digger
 • 26,740 points • 2,102 views
0 votes
1 answer

How to execute python script in hadoop file system (hdfs)?

Sep 19, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 13,553 views
0 votes
1 answer

How to install Sqoop with Hadoop 2.2.0?

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,043 views
0 votes
1 answer

Hadoop fs mkdir and testing existence FileSystem.exists

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,341 views
0 votes
1 answer

What is Custom partitioner in Hadoop? How to write partition function ?

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,565 views
0 votes
1 answer

Why am I getting error as hdfs dfs -mkdir, No such file or directory when I create a directory?

Sep 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 15,588 views
0 votes
1 answer

Understanding Hadoop Master Node, Slave Node and Data Node.

Sep 6, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,670 views
0 votes
1 answer

What is Network Topology in Hadoop?

Sep 6, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,977 views
0 votes
1 answer

How to access Hadoop Data using REST service?

Sep 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 4,445 views
0 votes
1 answer

How to write examples to test whether the installation is validated or not?

Sep 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 722 views
0 votes
1 answer

Which is the Real Time Monitoring tool/API for Hadoop?

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,222 views
0 votes
1 answer

What is the Data format and database choices in Hadoop and Spark?

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 924 views
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