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Most answered questions under tag hadoop

+1 vote
0 answers
One time Kerberos exception on secured Hadoop cluster
posted Feb 27, 2015 by anonymous
  • hadoop
  • kerberos
+1 vote
0 answers
Using Slider as a default mechanism for HBase on HDP 2.2
posted Feb 22, 2015 by anonymous
  • hadoop
  • ambari
  • yarn
+3 votes
0 answers
How to partition a file to smaller size for performing KNN in hadoop mapreduce
posted Jan 15, 2015 by Deepak Dasgupta
  • hadoop
  • mapreduce
+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
  • hadoop
+2 votes
0 answers
Unit tests on Hadoop Cluster
posted Jan 5, 2015 by anonymous
  • hadoop
  • testing
+2 votes
0 answers
Query regarding the object creation in map reduce code
posted Dec 5, 2014 by anonymous
  • mapreduce
  • hadoop
  • java
+2 votes
0 answers
Error while writing to HDFS NFS from windows
posted Nov 7, 2014 by anonymous
  • hdfs
  • hadoop
+2 votes
0 answers
How to set job-priority on a hadoop job
posted Nov 3, 2014 by Arjuna
  • hadoop
  • priority
+2 votes
0 answers
Run arbitrary job (non-MR) on YARN ?
posted Oct 27, 2014 by Parveen
  • yarn
  • hadoop
+4 votes
0 answers
Hadoop / HBase hotspotting / overloading specific nodes
posted Oct 9, 2014 by anonymous
  • hadoop
  • hdfs
+4 votes
0 answers
Hadoop Datanode configuration RAM and Cores
posted Oct 7, 2014 by anonymous
  • hadoop
+3 votes
0 answers
Support multiple block placement policies for HDFS?
posted Sep 15, 2014 by anonymous
  • hdfs
  • hadoop
+2 votes
0 answers
HDFS dfsclient: possible to force storage datanode ?
posted Aug 20, 2014 by anonymous
  • hadoop
  • hdfs
+2 votes
0 answers
Hadoop InputFormat - Processing large number of small files
posted Aug 20, 2014 by Tarun Singhal
  • hadoop
+1 vote
0 answers
Are there any other security tools for security in hadoop
posted Aug 13, 2014 by Honey
  • hadoop
+1 vote
0 answers
How to use docker in Hadoop, with patch of YARN-1964?
posted Aug 12, 2014 by anonymous
  • hadoop
+1 vote
0 answers
high ulimit for file descriptors in Hadoop?
posted Aug 11, 2014 by Bob Wise
  • hadoop
  • hive
+1 vote
0 answers
Hadoop and Hive Performance Tuning
posted Jul 31, 2014 by Sonu Jindal
  • hadoop
  • hive
+1 vote
0 answers
Image processing with hadoop
posted Jul 28, 2014 by Deepti Singh
  • hadoop
+1 vote
0 answers
Hadoop streaming - Class not found
posted Jul 23, 2014 by Luv Kumar
  • hadoop
0 votes
0 answers
Where can I find information on Hadoop Security Best Practices?
posted Jul 15, 2014 by Kiran Kumar
  • hadoop
+1 vote
0 answers
How to configure secondary namenode in Hadoop?
posted Jun 18, 2014 by Jagan Mishra
  • hadoop
  • namenode
+1 vote
0 answers
Adjusting locality calculation in hadoop?
posted Jun 16, 2014 by Garima Jain
  • hadoop
+1 vote
0 answers
Traditional BI (ETL) approach to Hadoop ecosystem
posted Jun 9, 2014 by anonymous
  • hadoop
  • informatica
+1 vote
0 answers
File Permission Issue using Distributed Cache of Hadoop-2.2.0
posted May 27, 2014 by Majula Joshi
  • hadoop
+1 vote
0 answers
Partition file by content based through HDFS
posted May 13, 2014 by Sanketi Garg
  • hadoop
  • hdfs
+1 vote
0 answers
Can I open multiple files on hdfs and write data to them in parallel and then close them at the end?
posted May 12, 2014 by Luv Kumar
  • hdfs
  • hadoop
+2 votes
0 answers
Hadoop logs and mapred.local.dir
posted May 11, 2014 by Kumar Mitrasen
  • hadoop
+1 vote
0 answers
How hadoop can be used machine learning, language processing and fraud detection etc
posted Apr 29, 2014 by Seema Siddique
  • hadoop
+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
  • hadoop
+4 votes
0 answers
How can I modify socket limit in linux with hadoop?
posted Apr 23, 2014 by Kiran Kumar
  • hadoop
  • linux
  • socket
0 votes
0 answers
HDFS and YARN security and interface impacts
posted Apr 20, 2014 by Sidharth
  • hadoop
  • hdfs
  • yarn
+2 votes
0 answers
Hive install under hadoop
posted Apr 14, 2014 by Arjuna
  • hadoop
  • hive
  • install
+1 vote
0 answers
DNS pre request for hadoop install
posted Apr 2, 2014 by Dewang Chaudhary
  • hadoop
  • dns
+1 vote
0 answers
Getting times for all the jobs run on a YARN cluster
posted Mar 21, 2014 by Kiran Kumar
  • yarn
  • hadoop
+8 votes
0 answers
Hadoop native and snappy library?
posted Feb 11, 2014 by Abhay Kulkarni
  • hadoop
+6 votes
0 answers
Backup NameNode metadata in HA configuration
posted Jan 31, 2014 by Dewang Chaudhary
  • hadoop
+1 vote
0 answers
HDFS federation configuration
posted Jan 23, 2014 by Bob Wise
  • hadoop
  • hdfs
+2 votes
0 answers
Tips for optimizing HDFS writes with replication=1?
posted Jan 22, 2014 by Kiran Kumar
  • hadoop
  • hdfs
+4 votes
0 answers
Hadoop upgrading/migrating downtime from Apache Hadoop 1.x to 2.x
posted Jan 16, 2014 by Deepti Singh
  • hadoop
  • upgrade
+3 votes
0 answers
Hadoop 2.2.0 YARN isolation and Windows
posted Jan 9, 2014 by Sheetal Chauhan
  • hadoop
  • windows
+3 votes
0 answers
accessing hadoop filesystem from Tomcat
posted Jan 6, 2014 by Deepti Singh
  • hadoop
  • tomcat
+2 votes
0 answers
Hadoop doesn't find the input file
posted Jan 4, 2014 by Anderson
  • hadoop
+2 votes
0 answers
Issue about running hive MR job in hadoop
posted Jan 3, 2014 by Deepak Dasgupta
  • hadoop
  • hive
+1 vote
0 answers
HDFS Data Integrity in copyToLocal
posted Dec 18, 2013 by Ahmed Patel
  • hadoop
  • hdfs
+1 vote
0 answers
How to set the environment variables in Hadoop 2.2.0
posted Dec 16, 2013 by Bob Wise
  • hadoop
  • environment
+1 vote
0 answers
Issue about datanode memory usage with Hadoop?
posted Dec 10, 2013 by Garima Jain
  • hadoop
  • memory
+2 votes
0 answers
How hadoop 2.x perform better than hadoop 1.x
posted Dec 6, 2013 by Seema Siddique
  • hadoop
  • performance
+3 votes
0 answers
Hadoop Multi-tenant cluster setUp
posted Dec 5, 2013 by Abhay Kulkarni
  • hadoop
  • multiuser
+2 votes
0 answers
How to migrate Apache Hadoop 1.x HDFS to Apache Hadoop 2.x HDFS
posted Dec 3, 2013 by Kumar Mitrasen
  • hadoop
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