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PDF Apache Accumulo for Developers

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Accumulo is a low-latency, large table data storage and retrieval system with cell-level security. YARN provides visualization and analysis applications predictable access to data in Accumulo. Accumulo was originally developed at the National Security Agency, before it was contributed to the Apache Software Foundation as an open-source incubation project.

Due to its origins in the intelligence community, Accumulo provides extremely fast access to data in massive tables, while also controlling access to its billions of rows and millions of columns down to the individual cell. This is known as fine-grained data access control.

Cell-level access control is important for organizations with complex policies governing who is allowed to see data.

APACHE ACCUMULO FOR DEVELOPERS

It enables the intermingling of different data sets with access control policies for fine-grained access to data sets that have some sensitive elements. Those with permission to see sensitive data can work alongside co-worker without those privileges. Both users can access data in accordance with their permissions. Without Accumulo, those policies are difficult to enforce systematically, but Accumulo encodes those rules for each individual data cell and controls fine-grained access. Accumulo stores sorted key-value pairs. Sorting data by key allows rapid lookups of individual keys or scans over a range of keys.

Since data is retrieved by key, the keys should contain the information that will be used to do the lookup.

Apache Accumulo at Bloomberg

The original Big Table design has a row and column paradigm. Accumulo also has connectors with other Apache projects such as Hive and Pig.

Apache Accumulo for Developers

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Last Name. Email Address. Phone Number. Company Name. What is Your Question or Comment? Apache Accumulo. OVERVIEW A sorted, distributed key-value store with cell-based access control Accumulo is a low-latency, large table data storage and retrieval system with cell-level security. What Accumulo Does Accumulo was originally developed at the National Security Agency, before it was contributed to the Apache Software Foundation as an open-source incubation project. How Accumulo Works Accumulo stores sorted key-value pairs.


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If retrieving data by a unique identifier, the identifier should be in the key. If retrieving data by its intrinsic features, such as values or words, the keys should contain those features. The values may contain anything since they are not used for retrieval. From Wikipedia, the free encyclopedia. Java programming language portal Free and open-source software portal.


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    Apache Accumulo for Developers

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