Learning HBase

Using the Hadoop tool or JARs for HBase

In a driver class provided by Hadoop, we can run HBase JAR files utilizing the features of Hadoop and using the following command:

hadoop jar <HBase Jar file path>/hbase-*.jar<program name>

The program names we can use here are:

• completebulkload: This is for a bulk data load
• copytable: This is to export a table data from the local to peer cluster
• export: This is to export data from an HBase table to HDFS as a sequence file
• import: This is to import data written by export
• importtsv: This is to import data in TSV format to HBase
• rowcounter: This is to count rows in an HBase table using MapReduce
• verifyrep: This is to compare the data from tables of different clusters

We will discuss the preceding methods in the next ...