HBase

41. Define catalog tables in Hbase? Catalog tables are used to maintain the metadata information.

31. What is REST? Rest stands for Representational State Transfer which defines the semantics so that the protocol can be used in a generic way to address remote resources. It …

21. What is use of tools command? This command is used to list the hbase surgery tools.

11. What is the full form of YCSB? YCSB stands for Yahoo! Cloud Serving Benchmark.

1. What is Apache HBase? It is a column oriented database which is used to store the sparse data sets. It is run on the top of Hadoop file distributed …

41.What is a Hbase Store? A Habse Store hosts a MemStore and 0 or more StoreFiles (HFiles). A Store corresponds to a column family for a table for a given …

31.How does Hbase support Bulk data loading? There are two main steps to do a data bulk load in Hbase. Generate Hbase data file(StoreFile) using a custom mapreduce job) from …

21.What is a rowkey in Hbase? Each row in Hbase is identified by a unique byte of array called row key.

11.Is Hbase a scale out or scale up process? Hbase runs on top of Hadoop which is a distributed system. Haddop can only scale uo as and when required by …

1.What are the different commands used in Hbase operations? There are 5 atomic commands which carry out different operations by Hbase. Get, Put, Delete, Scan and Increment.