Recent questions tagged bigdata

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Hadoop job getting executed in local mode only?

May 3, 2018 in Big Data Hadoop by Atul
 • 10,240 points • 3,844 views
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Error while copying the file from local to HDFS

May 3, 2018 in Big Data Hadoop by Damon Salvatore
 • 5,980 points • 5,759 views
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How to extract only few lines of data from HDFS?

May 2, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 13,952 views
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How Sqoop and Tera Data Connector for Hadoop differ from each other?

May 2, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,800 views
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NodeManager is not able to connect to the ResourceManager.

May 1, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 5,671 views
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What are some of the famous visualization tools which can be integrated with Hadoop & Hive?

May 1, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,470 views
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Why is Spark faster than Hadoop Map Reduce

Apr 30, 2018 in Apache Spark by Data_Nerd
 • 2,390 points • 2,941 views
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What is the function of getLocalCacheArchives method?

Apr 29, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,288 views
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What is the command to find the free space in HDFS?

Apr 29, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 4,333 views
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What is the command to navigate in HDFS?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 7,619 views
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How can I write text in HDFS using CMD?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 4,398 views
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Changing hostname in fs.default.name property puts Hadoop in safemode

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 3,896 views
+1 vote
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What does hadoop fs -du command gives as output?

Apr 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 8,448 views
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Which is better Neo4j or HBASE ?

Apr 26, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,107 views
+1 vote
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Why is jar file required to execute a MR code instead of class file?

Apr 24, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,594 views
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How to perform Near-real time analytics using Hadoop?

Apr 24, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,315 views
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How do we authenticate user from http.signature.secret file?

Apr 24, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,792 views
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GUI for using Hadoop

Apr 23, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 3,215 views
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How to transfer data from Netezza to HDFS using Apache Sqoop?

Apr 23, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,368 views
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How to checkout Hadoop 2.6.0 from git

Apr 23, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,357 views
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What does count command in Hadoop tells?

Apr 23, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,302 views
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What is the $HIVE_HOME in Hortonworks sandbox

Apr 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,842 views
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Killing an Application from ResourceManager Web UI

Apr 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 4,723 views
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Hadoop demo Code not working

Apr 20, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,240 views
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How to work with distributed cache in Hadoop?

Apr 20, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,903 views
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How to implement data locality in Hadoop MapReduce?

Apr 20, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,451 views
+1 vote
1 answer

Why minimum 3 Journal Nodes are required in Hadoop HA architecture?

Apr 20, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 13,657 views
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1 answer

Declaring separator in the MapReduce(Hadoop 0.20)

Apr 20, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,870 views
0 votes
1 answer

Cassandra for datawarehouse

Apr 20, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 3,192 views
0 votes
1 answer

Difference between Hadoop file system and Linux

Apr 20, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 5,851 views
0 votes
1 answer

HortonWorks Hadoop encryption tools and data security

Apr 20, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 2,488 views
+1 vote
2 answers

Hadoop 3 compatibility with older versions of Hive, Pig, Sqoop and Spark

Apr 20, 2018 in Apache Spark by Shubham
 • 13,490 points • 9,005 views
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1 answer

How to find Hadoop version in CDH?

Apr 19, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 11,041 views
0 votes
2 answers

hadoop copy a local file system folder to HDFS

Apr 19, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 28,134 views
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1 answer

Getting error in Custom Input Format

Apr 19, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 1,875 views
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1 answer

Error in Hadoop Mapreduce

Apr 19, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 2,639 views
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How Hadoop replication works?

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,096 views
0 votes
1 answer

Getting error in Hadoop: Output file already exist

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 11,750 views
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1 answer

HDFS Location in Hadoop?

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,254 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 • 3,413 views
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Installing Hive & Hadoop in VM

Apr 19, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 6,192 views
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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 • 7,733 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 • 2,329 views
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1 answer

Why Hadoop is tightly bound to linux?

Apr 19, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,004 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 • 3,190 views
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Map and Reduce task memory settings in Hadoop YARN

Apr 18, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 2,494 views
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1 answer

Hadoop for data migration

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

How to set the number of Map & Reduce tasks?

Apr 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,624 views
0 votes
1 answer

Setting Hive/Hadoop property using Hive Query

Apr 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,330 views
0 votes
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 • 2,693 views
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