Apache HBase is column oriented scalable database built on top of Hadoop HDFS. The HBase is an open-source implementation of Google’s BigTable. In this article, we will check Apache HBase data model and explanation. Apache HBase Data Model The Apache HBase Data Model is designed to accommodate structured or semi-structured data that could vary in field size, data type and columns. HBase stores data in tables, which have rows and columns. The table schema is very different from traditional relational database tables. You can consider HBase table as a multi-dimensional…

HBase table can scale to billions of rows and many number of column based on your requirements. This table allows you to store terabytes of data in it. The HBase table supports the high read and write throughput at low latency. A single value in each row is indexed; this value is known as the row key. In this article, we will check HBase table schema design and concept. HBase Table Schema Design General Concepts The HBase schema design is very different compared to the relation database schema design. Below…

Apache HBase starts where Hadoop HDFS stops, i.e. HBase provides random, realtime read/write access to the Bigdata. If you have flat files such as CSV and TSV, you can use Apache HBase bulk load CSV and TSV features to get the data into HBase tables. In this post, I will tell you how to import data to HBase from CSV and TSV files. We will not dig into any transformation. We will check importing data into already existing HBase table. HBase Importtsv utility Importtsv is a utility that will load…

Hbase is usually installed on the top of the Hadoop and it uses the Hadoop file system for its storage. Just like other Bigdata framework such as Hive, Pig etc, Hbase provides jruby interactive shell. You can also use various Java API to interact with HBase. In this article, we will check some commonly used HBase Data Manipulation shell commands and explanation on how to use them. Commonly used HBase Data Manipulation Shell Commands HBase provide many data manipulation shell commands that you can use on the interactive shell to…

The set of HBase basic operations are referred to as CRUD operations. i.e. create, read, update, delete operations. HBase scan command is used to get data out of HBase tables. In this article, we will check how to read HBase tables using scan shell command and various examples. HBase scan command The HBase scan command is yet another HBase shell command that you can use to read the table. Scan command is similar to HBase get shell command but supports more options. The HBase scan command scans entire table and…

Hbase is installed on the top of the Hadoop and it uses the Hadoop file system only. Just like other Bigdata framework such as Hive, Pig etc, Hbase provides jruby interactive shell. You can also use the Java API to interact with Hbase. In this article, we will check some commonly used HBase table management shell commands and explanation on how to use them. Commonly used HBase Table Management Shell Commands In HBase, jruby interactive shell mode is used to interact with HBase for table operations, table management, and data modeling.…

You can compare the namespace to the RDBMS shema’s. You can create the namespace in the HBase table and then create multiple tables in that namespace. In this article, we will check out Hbase namespace commands with an examples. Hbase Namespace Commands There are three commonly used namespace commands: create_namespace, alter_namespace, describe_namespace, drop_namespace, list_namespace, list_namespace_tables HBase create_namesace command This command is used to create a namespace in the HBase. Below are the examples to create namespace: hbase(main):019:0> create 'test:test1','cf' 0 row(s) in 2.3760 seconds => Hbase::Table - test:test1 Create Table inside…