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Apache Accumulo for Developers by Guðmundur Jón Halldórsson

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Summary

The most important aspect when optimizing a cluster is disk and memory usage, which is divided between nodes over the cluster. Understanding the configuration parameters for Hadoop, ZooKeeper, and Accumulo is vital to be able to get the best performance out of the cluster.

In the next chapter, we will go through the security aspect of Accumulo. We will learn how Accumulo uses cell-level security to gain full control over the visibility of every cell for every table, and the following chapter will give us the answer to questions such as how Accumulo is able to secure information sharing and information multitenancy.

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