FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The HBase scan command scans entire table and displays the table contents. You can execute HBase scan command with various other options or attributes such as TIMERANGE, FILTER, TIMESTAMP, LIMIT, MAXLENGTH, COLUMNS, CACHE, STARTROW and STOPROW.

Detailed explanation-2: -Scaning using HBase Shell The scan command is used to view the data in HTable. Using the scan command, you can get the table data. Its syntax is as follows: scan ‘<table name>’

Detailed explanation-3: -HBase Command is an Open-source Framework. It runs on the Hadoop file distributed System (HDFS) use to store sparse data sets. The key components of HBase are Zookeeper, Region, HBase Master. Hbase consists of active HBase Master server and one Region Server.

Detailed explanation-4: -When you compare a partial key scan and a get, remember that the row key you use for Get can be a much longer string than the partial key you use for the scan. In that case, for the Get, HBase has to do a deterministic lookup to ascertain the exact location of the row key that it needs to match and fetch it.

Detailed explanation-5: -You can retrieve data from the HBase table using the get() method of the HTable class.