Recent questions tagged big-data

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

Spark - load CSV file as DataFrame?

Sep 25, 2018 in Big Data Hadoop by digger
 • 26,740 points • 6,849 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

Hadoop: intervals and JOIN

Sep 24, 2018 in Big Data Hadoop by digger
 • 26,740 points • 641 views
0 votes
1 answer

How to create smaller table from big table in HIVE?

Sep 24, 2018 in Big Data Hadoop by slayer
 • 29,370 points • 1,739 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

Hadoop Java Error: java.lang.NoClassDefFoundError: WordCount (wrong name: org/myorg/WordCount)

Sep 19, 2018 in Big Data Hadoop by digger
 • 26,740 points • 6,183 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 does the HDFS architecture provide redundancy?

Sep 19, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 987 views
0 votes
1 answer

How to discover missing or corrupt HDFS data?

Sep 19, 2018 in Big Data Hadoop by Meci Matt
 • 9,460 points • 1,819 views
0 votes
1 answer

How does Avro schema evolution work?

Sep 19, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 8,214 views
0 votes
1 answer

What is Modeling data in Hadoop and how to do it?

Sep 19, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,782 views
0 votes
1 answer

Where are Hadoop's task log files stored?

Sep 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 980 views
0 votes
1 answer

How to access different directories in a Hadoop cluster?

Sep 18, 2018 in Big Data Hadoop by Meci Matt
 • 9,460 points • 783 views
0 votes
1 answer

What additional capability does Ganglia provide to monitor Hadoop?

Sep 18, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 959 views
0 votes
1 answer

How to achieve maximum memory to disk I/O ratio?

Sep 18, 2018 in Big Data Hadoop by Meci Matt
 • 9,460 points • 690 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

How to choose between Cassandra, Membase, Hadoop, MongoDB and RDBMS?

Sep 18, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 819 views
0 votes
1 answer

submitJob method in JobClient of Hadoop throws null pointer

Sep 18, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 760 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

Logical and Physical Plan : PIG Script

Sep 12, 2018 in Database by shams
 • 3,670 points • 3,455 views
0 votes
1 answer

Debugging tools: PIG

Sep 12, 2018 in Database by shams
 • 3,670 points • 1,312 views
0 votes
1 answer

What is the difference between Hadoop MapReduce and built-in MapReduce?

Sep 11, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,574 views
0 votes
1 answer

Hadoop Documentation for Eclipse.

Sep 11, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 926 views
0 votes
1 answer

How should I provide a URL for hdfs file system?

Sep 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 3,566 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

What are the basic concepts for video data structure and processing?

Sep 7, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 580 views
0 votes
1 answer

How to upgrade Apache Hadoop from 2.4.1 to 2.6.0?

Sep 7, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 635 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

Clarification of some Hadoop Concepts.

Sep 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 477 views
0 votes
1 answer

How to format the output being written by MapReduce in Hadoop?

Sep 5, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,594 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

Will hadoop(sqoop) load oracle faster than SQL loader?

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,818 views
0 votes
1 answer

Which Operating system is more preferable for data node?

Sep 4, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 699 views
0 votes
1 answer

Which Windows client is used for Cloudera Hadoop Cluster?

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 905 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 best functional language to do Hadoop Map-Reduce?

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 908 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
0 votes
2 answers

Not able to run Hive queries.

Aug 30, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,650 views
Page:

Most popular tags

"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.