Blog

As an administrator, you manage projects, users, and roles. Projects are organizational units in the cloud to which you can assign users. Projects are also known as projects or accounts. Users can...

OpenStack – User Management

As an administrator, you manage projects, users, and roles. Projects are organizational units in the cloud to which you can assign users. Projects are also known as projects or accounts. Users can...

Mitaka is 13th release of Openstack. Following are some of the notable features in Mitaka. Compute Real-time Kernel-based Virtual Machine (KVM) compute nodes and custom CPU thread policies Live migration improvements...

OpenStack – Mitaka Installation using packstack

Mitaka is 13th release of Openstack. Following are some of the notable features in Mitaka. Compute Real-time Kernel-based Virtual Machine (KVM) compute nodes and custom CPU thread policies Live migration improvements...

Question: What are key components of Hbase? Answer: Main components of Hbase :- Hmaster Zoopkeeper Region Server Other main components are :- Memstore Hfile WAL Question: What role does Zookeeper...

BigData Interview Questions – Hbase

Question: What are key components of Hbase? Answer: Main components of Hbase :- Hmaster Zoopkeeper Region Server Other main components are :- Memstore Hfile WAL Question: What role does Zookeeper...

Q. If you run select * query in Hive, why it’s not run MapReduce? It’s an optimization technique. hive.fetch.task.conversion property can (FETCH task) minimize the latency of MapReduce overhead....

BigData Interview Questions- Hive 2

Q. If you run select * query in Hive, why it’s not run MapReduce? It’s an optimization technique. hive.fetch.task.conversion property can (FETCH task) minimize the latency of MapReduce overhead....

Question: What is Hive Metastore ? Answer: Hive Meta store is a database that stores metadata of your hive tables like table name,column name,data types,table location,number of buckets in the...

BigData Interview Questions- Hive 1

Question: What is Hive Metastore ? Answer: Hive Meta store is a database that stores metadata of your hive tables like table name,column name,data types,table location,number of buckets in the...

Question: Can I set the number of reducers to zero? Answer: Yes, Setting the number of reducers to zero is a valid configuration in Hadoop. When you set the...

BigData Interview Questions- MapReduce 2

Question: Can I set the number of reducers to zero? Answer: Yes, Setting the number of reducers to zero is a valid configuration in Hadoop. When you set the...

Question: What is Hadoop Map Reduce ? Answer: Hadoop MapReduce is a software framework for easily writing applications which process vast amounts of data (multi-terabyte data-sets) in-parallel on large...

BigData Interview Questions- MapReduce

Question: What is Hadoop Map Reduce ? Answer: Hadoop MapReduce is a software framework for easily writing applications which process vast amounts of data (multi-terabyte data-sets) in-parallel on large...

HBase is a database built on top of the HDFS. HBase provides fast lookups for larger tables. The goal of the HBase project is to host very large tables...

BigData – Basics of Apache HBase

HBase is a database built on top of the HDFS. HBase provides fast lookups for larger tables. The goal of the HBase project is to host very large tables...

Pig was initially developed at Yahoo!. Apache Pig is one of the components of Hadoop is used for processing and analysing large data sets. It runs on top of...

BigData – Basics of Apache Pig

Pig was initially developed at Yahoo!. Apache Pig is one of the components of Hadoop is used for processing and analysing large data sets. It runs on top of...

In this section we are going to cover the following :- Type of tables Creating views Type of Tables : You can have Managed table and External Table in Hive....

BigData – Apache Hive Tables

In this section we are going to cover the following :- Type of tables Creating views Type of Tables : You can have Managed table and External Table in Hive....

Apache Hive is one of the components of Hadoop Ecosystem. Hive is Datawarehouse provides the SQL-like interface used to Query Big Data . Features of Hive : Support various...

BigData – Basics of Apache Hive

Apache Hive is one of the components of Hadoop Ecosystem. Hive is Datawarehouse provides the SQL-like interface used to Query Big Data . Features of Hive : Support various...

Sqoop is known as “SQL-to-Hadoop”. Sqoop is a tool used to transfer Data between relational databases and Hadoop.  It has a connector based architecture that supports plugins that provide...

BigData – Ingesting Data into Hadoop Through Sqoop

Sqoop is known as “SQL-to-Hadoop”. Sqoop is a tool used to transfer Data between relational databases and Hadoop.  It has a connector based architecture that supports plugins that provide...

Apache pig is an abstraction layer for processing large datasets; it’s a sub project from Apache and built for Hadoop. Apache pig is scripting language for exploring big datasets,...

BigData- Apache Pig

Apache pig is an abstraction layer for processing large datasets; it’s a sub project from Apache and built for Hadoop. Apache pig is scripting language for exploring big datasets,...

Sqoop Sqoop is a tool designed to transfer data between Hadoop and RDBMS .Sqoop is an open source software product of the Apache Software Foundation. You can use sqoop...

BigData- Sqoop

Sqoop Sqoop is a tool designed to transfer data between Hadoop and RDBMS .Sqoop is an open source software product of the Apache Software Foundation. You can use sqoop...

Inquire Now
close slider