HBase Interview Questions and Answers For Freshers Part-5
41. Define catalog tables in Hbase? Catalog tables are used to maintain the metadata information. (101)
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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 also provides support for different message formats, offering many choices…
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21. What is use of tools command? This command is used to list the hbase surgery tools. (107)
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11. What is the full form of YCSB? YCSB stands for Yahoo! Cloud Serving Benchmark. (108)
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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 system.Apache HBase is a database that runs on a Hadoop…
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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 region. (187)
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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 the data source. The StoreFile is created in Hbase internal…
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21.What is a rowkey in Hbase? Each row in Hbase is identified by a unique byte of array called row key. (206)
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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 adding more machines on the fly. So Hbase is a…
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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. (186)
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