FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -HBase is used whenever we need to provide fast random access to available data. Companies such as Facebook, Twitter, Yahoo, and Adobe use HBase internally.

Detailed explanation-2: -HBase stores data in HFiles that are indexed (sorted) by their key. Given a random key, the client can determine which region server to ask for the row from. The region server can determine which region to retrieve the row from, and then do a binary search through the region to access the correct row.

Detailed explanation-3: -Apache HBase (HBase, 2015) is an open-source distributed, versioned, NoSQL, or nonrelational, database that natively allows random access and indexing of data. HBase typically stores data in HDFS in a cluster of computers, though it is not a requirement and other storage types are available.

Detailed explanation-4: -Column Family: Column families are a combination of several columns. A single request to read a column family gives access to all the columns in that family, making it quicker and easier to read data.

Detailed explanation-5: -You can retrieve data from the HBase table using the get() method of the HTable class. This method extracts a cell from a given row.