Most viewed questions under tag hadoop

+1 vote

3 answers

Is there any benchmarks or 'performance heuristics' for Hadoop?

posted Feb 24, 2014 by Dewang Chaudhary

0 votes

0 answers

Define DataNode and how does NameNode tackle DataNode failures in HADOOP?

posted Jul 11, 2017 by Karthick.c

+2 votes

1 answer

Hadoop: Map Reduce in Cache

posted Feb 11, 2015 by anonymous

+1 vote

1 answer

What is hadoop?

posted Jul 30, 2014 by anonymous

+1 vote

1 answer

Eclipse plugin for Hadoop2.5.2

posted Dec 9, 2014 by anonymous

+1 vote

0 answers

What is a block and block scanner in HDFS?

posted Jun 22, 2017 by Karthick.c

+1 vote

1 answer

How to upgrade hadoop cluster?

posted May 19, 2014 by Navneet

+2 votes

0 answers

How to migrate hbase table from hbase-0.94 to hbase-0.98 which both belong to different hadoop clusters

posted Jan 8, 2015 by anonymous

+4 votes

0 answers

Hadoop / HBase hotspotting / overloading specific nodes

posted Oct 9, 2014 by anonymous

+1 vote

1 answer

What is Hadoop Map Reduce? How it works?

posted Nov 18, 2014 by Amit Kumar Pandey

+1 vote

0 answers

One time Kerberos exception on secured Hadoop cluster

posted Feb 27, 2015 by anonymous

+2 votes

0 answers

Hadoop doesn't find the input file

posted Jan 4, 2014 by Anderson

+1 vote

0 answers

What configuration parameters cause a Hadoop 2.x job to run on the cluster?

posted Apr 25, 2014 by Luv Kumar

+3 votes

0 answers

Hadoop 2.2.0 YARN isolation and Windows

posted Jan 9, 2014 by Sheetal Chauhan

0 votes

0 answers

Where can I find information on Hadoop Security Best Practices?

posted Jul 15, 2014 by Kiran Kumar

+2 votes

1 answer

Explain about the process of inter cluster data copying?

posted Dec 22, 2016 by Karthick.c

+3 votes

0 answers

Hadoop client setup to access remote cluster

posted Oct 7, 2015 by anonymous

+1 vote

0 answers

distcp takes lots of time to finish between 2 MapReduces

posted May 11, 2015 by Ramakrishnan

+3 votes

0 answers

Problems installing Hadoop on Windows 7 enterprise N

posted Mar 9, 2015 by anonymous

+2 votes

0 answers

Run my own application master on a specific node in a YARN cluster

posted Mar 30, 2015 by anonymous

+1 vote

0 answers

How to renew Kerberos ticket to run balancer for long time?

posted Jul 3, 2015 by anonymous

+4 votes

0 answers

Hadoop upgrading/migrating downtime from Apache Hadoop 1.x to 2.x

posted Jan 16, 2014 by Deepti Singh

+2 votes

1 answer

Hadoop: JAVA_HOME not set though the workstation has working java

posted Jan 10, 2014 by Tarun Singhal

+2 votes

0 answers

Explain about the partitioning, shuffle and sort phase in Hadoop?

posted Jun 30, 2017 by Karthick.c

+3 votes

1 answer

Why Hadoop doesn’t support Updates and append?

posted Nov 29, 2016 by Shyam

+1 vote

1 answer

Why can FSDataInputStream.read() only read 2^17 bytes in hadoop2.0?

posted Mar 7, 2014 by Meenal Mishra

0 votes

0 answers

What does mean by TaskInstance in Hadoop?

posted Apr 8, 2015 by Amit Kumar Pandey

+2 votes

1 answer

Hadoop Pi Example in Yarn

posted Dec 18, 2013 by Meenal Mishra

0 votes

1 answer

How to work on Hadoop platform?

posted Jun 11, 2014 by Joy Dutta

+1 vote

0 answers

How hadoop can be used machine learning, language processing and fraud detection etc

posted Apr 29, 2014 by Seema Siddique

+2 votes

0 answers

Can technology in Database engines like MySQL, Oracle be changed so they work like Hadoop?

posted May 27, 2016 by Abhay

+3 votes

1 answer

Is there a way to run Mapreduce with mongodb as input and output to HDFS?

posted Oct 1, 2015 by anonymous

+1 vote

1 answer

Hadoop: Can RM ignore heartbeats?

posted Feb 24, 2015 by anonymous

+1 vote

0 answers

Two hadoop nodes on same machine while a second machine not joining the cluster

posted Jun 16, 2015 by anonymous

+4 votes

1 answer

Please explain Hadoop Architecture?

posted Dec 20, 2016 by Karthick.c

0 votes

1 answer

Can anyone provide me steps to grant a particular user access equivalnent to that of "hdfs" user in hadoop.

posted Jul 7, 2015 by anonymous

+2 votes

2 answers

How to keep data consistency between Machines using Hadoop?

posted Feb 19, 2014 by Abhay Kulkarni

+2 votes

0 answers

What is the best hardware configuration to run Hadoop?

posted Jun 22, 2017 by Karthick.c

+2 votes

0 answers

Hadoop: Filtering by value in Reducer

posted May 11, 2015 by Kumar Mitrasen

+2 votes

0 answers

Query regarding the object creation in map reduce code

posted Dec 5, 2014 by anonymous

+1 vote

0 answers

Explain the difference between NameNode, Backup Node and Checkpoint NameNode?

posted Dec 22, 2016 by Karthick.c

+2 votes

1 answer

HDFS - Consolidate 2 small volumes into 1 large volume

posted Oct 21, 2014 by anonymous

+2 votes

0 answers

Tips for optimizing HDFS writes with replication=1?

posted Jan 22, 2014 by Kiran Kumar

+1 vote

0 answers

Partition file by content based through HDFS

posted May 13, 2014 by Sanketi Garg

+3 votes

1 answer

multiusers in hadoop through LDAP

posted Dec 10, 2013 by Deepankar Dubey

0 votes

0 answers

What happens to a read operation when the file is moved to trash in HDFS?

posted Mar 8, 2016 by Naveena Garg

+2 votes

1 answer

What is Hadoop Ecosystem?

posted Nov 29, 2016 by Shyam

+1 vote

0 answers

HDFS Data Integrity in copyToLocal

posted Dec 18, 2013 by Ahmed Patel

+2 votes

0 answers

What are the different types of tombstone markers in HBase for deletion?

posted Jul 26, 2017 by Karthick.c

+1 vote

1 answer

What does mean of NameNode in Hadoop?

posted Dec 4, 2014 by Amit Kumar Pandey