Most answered questions under tag hadoop

+1 vote

3 answers

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

posted Feb 24, 2014 by Dewang Chaudhary

+2 votes

2 answers

What is Hadoop and Where did Hadoop come from?

posted Apr 10, 2015 by Vrije Mani Upadhyay

+3 votes

2 answers

Hadoop: How reduce tasks know which partition they should read?

posted Mar 9, 2015 by anonymous

0 votes

2 answers

Hadoop: WholeFileInputFormat takes the entire input file as input or each record(input split) as whole?

posted Jun 28, 2014 by Amit Parthsarthi

+1 vote

2 answers

Hadoop as a substitue for ETL tools like SSIS, Informatica?

posted Jun 12, 2014 by Amit Sharma

+1 vote

2 answers

Best practice of migrating hadoop 1.0.1 to hadoop 2.2.3

posted Mar 6, 2014 by Amit Mishra

+2 votes

2 answers

How to keep data consistency between Machines using Hadoop?

posted Feb 19, 2014 by Abhay Kulkarni

+4 votes

2 answers

Add few record(s) to a Hive table or a HDFS file on a daily basis

posted Feb 10, 2014 by Tarun Singhal

+3 votes

2 answers

Is it possible to access a hadoop 1 file system (hdfs) via the hadoop 2.2.0 command line tools?

posted Feb 1, 2014 by Majula Joshi

+1 vote

2 answers

HDFS data transfer is faster than SCP based transfer?

posted Jan 24, 2014 by Deepti Singh

+3 votes

2 answers

Unable to compile hadoop source code

posted Jan 7, 2014 by Mandeep Sehgal

+2 votes

2 answers

Hadoop: Mounting HDFS on client

posted Dec 20, 2013 by Deepankar Dubey

+1 vote

2 answers

multinode hadoop cluster on vmware

posted Dec 18, 2013 by Jagan Mishra

+2 votes

2 answers

Estimating the time of hadoop job?

posted Dec 17, 2013 by Sonu Jindal

+1 vote

2 answers

How to set hadoop.tmp.dir if I have multiple disks per node?

posted Dec 16, 2013 by Sheetal Chauhan

+1 vote

1 answer

What is Job Tracker role in Hadoop?

posted Jul 11, 2017 by Karthick.c

+2 votes

1 answer

What is the process to change the files at arbitrary locations in HDFS?

posted Jan 11, 2017 by Jdk

+1 vote

1 answer

Explain the difference between NAS and HDFS?

posted Jan 11, 2017 by Jdk

+2 votes

1 answer

How can you overwrite the replication factors in HDFS?

posted Jan 11, 2017 by Jdk

+2 votes

1 answer

Explain about the process of inter cluster data copying?

posted Dec 22, 2016 by Karthick.c

+4 votes

1 answer

Please explain Hadoop Architecture?

posted Dec 20, 2016 by Karthick.c

+3 votes

1 answer

Why Hadoop doesn’t support Updates and append?

posted Nov 29, 2016 by Shyam

+2 votes

1 answer

What is Hadoop Ecosystem?

posted Nov 29, 2016 by Shyam

0 votes

1 answer

Windows and Linux hadoop cluster

posted Jul 20, 2016 by anonymous

0 votes

1 answer

Is it possible to turn on data node encryption without kerberos?

posted Apr 6, 2016 by anonymous

0 votes

1 answer

Can the blocks be broken in HDFS file system?

posted Nov 25, 2015 by anonymous

+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

Questions about usage of Hadoop built-in examples

posted Sep 14, 2015 by anonymous

0 votes

1 answer

Unable to use ./hdfs dfsadmin -report with HDFS Federation

posted Aug 24, 2015 by Bob Wise

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

+1 vote

1 answer

How to set mapreduce.input.fileinputformat.split.maxsize for a specific job ?

posted May 16, 2015 by Sudhakar Singh

+2 votes

1 answer

How to access value of variable in Driver class which has been declared and modified inside Mapper class?

posted May 12, 2015 by Sudhakar Singh

+1 vote

1 answer

How we can install Hadoop 1.2.1 on RHEL 7/6/5 or on CentOS?

posted May 7, 2015 by Amit Kumar Pandey

+1 vote

1 answer

hadoop: Is there any way to limit the concurrent running mappers per job?

posted Apr 20, 2015 by Parveen

+1 vote

1 answer

How to stop a mapreduce job from terminal running on Hadoop Cluster?

posted Apr 11, 2015 by Sudhakar Singh

+1 vote

1 answer

Can we run mapreduce job from eclipse IDE on fully distributed mode hadoop cluster?

posted Apr 10, 2015 by Sudhakar Singh

+1 vote

1 answer

Hadoop: Can RM ignore heartbeats?

posted Feb 24, 2015 by anonymous

+1 vote

1 answer

Hadoop: HTTPS communication between nodes, how can I confirm ?

posted Feb 21, 2015 by anonymous

+2 votes

1 answer

Hadoop: Running MapReduce jobs in batch mode on different data sets?

posted Feb 21, 2015 by anonymous

+1 vote

1 answer

Time out after 600 for YARN mapreduce application

posted Feb 11, 2015 by anonymous

+2 votes

1 answer

Hadoop: Map Reduce in Cache

posted Feb 11, 2015 by anonymous

+1 vote

1 answer

Hadoop: How Client communicates with HDFS?

posted Dec 29, 2014 by Amit Kumar Pandey

+1 vote

1 answer

Eclipse plugin for Hadoop2.5.2

posted Dec 9, 2014 by anonymous

+1 vote

1 answer

What does mean of NameNode in Hadoop?

posted Dec 4, 2014 by Amit Kumar Pandey

+1 vote

1 answer

What happens when a datanode fails in Hadoop framework?

posted Dec 4, 2014 by Amit Kumar Pandey

0 votes

1 answer

How does speculative execution work in Hadoop?

posted Dec 2, 2014 by Kali Mishra

+1 vote

1 answer

What is the purpose of RecordReader in Hadoop?

posted Dec 2, 2014 by Kali Mishra

+1 vote

1 answer

Explain what is JobTracker in Hadoop? What are the actions followed by Hadoop?

posted Nov 18, 2014 by Amit Kumar Pandey

+1 vote

1 answer

What is Hadoop Map Reduce? How it works?

posted Nov 18, 2014 by Amit Kumar Pandey

+2 votes

1 answer

HDFS - Consolidate 2 small volumes into 1 large volume

posted Oct 21, 2014 by anonymous