Apache HBase

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Apache HBase
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On top of HDFS, a non-relational database called
Apache Hbase keeps running. An open source NoSQL
database offering real-time read/write access
with large datasets is nothing but the Apache
Hbase. For linear handling of huge data sets with
lots of rows and columns Hbase is the best and it
merges effortlessly the data sources that use a
wide variety of different schemas and
structures.  Combined with Hadoop it works
smoothly with the data access engines through
YARN.
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• Working action of Hbase
• Random, real time access is provided to your data
  in Hadoop is provided in random by Apache Hbase.
  For very hosting very large tables and providing
  a great choice for storing multi-structured or
  sparse data. Hbase can be queried by users at a
  particular point of time, making possible
  flashback queries.Every table requires to have a
  primary key as Hbase scales linearly. Allocated
  to a region are few sequential blocks which is
  again a sub division of divided key space.

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• Characteristic  
• Fault Tolerant
• Fast 
• Usable

• Advantages
• Imitating across the data center
• Highly consistent and atomic row-level
  applications
• Automatic fail over and higher availability
• Partitioning of large databases and load
  balancing of tables
• Real time lookups

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• Apache Hbase usage enterprise with low latency
  storage for scenarios requiring analysis of
  real-time and data in tabular format with end
  user applications. Web security services offering
  company maintaining a program for holding lots of
  event traces and activity logs from it customers
  desktop on a daily basis. For tightly integrating
  security solutions along with Hbase for
  integrating companys programmers. (For assuring
  the security they offer have pace with real-time
  changes in the threat landscape).

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