Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 14, Problem 10RQ
Program Plan Intro
Hadoop Distributed File System (HDFS):
- Hadoop Distributed File System (HDFS) is the primary data storage systems usually used by the Hadoop applications.
- It was developed as an infrastructure for the Apache Nutch web search engine project and now it is an Apache Hadoop subproject.
- It includes a NameNode and DataNode architecture to implement a distributed file system that is capable of providing high-performance access to data across Hadoop clusters.
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Database Systems: Design, Implementation, & Management
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- How do the performance characteristics differ when querying against binary large object (BLOB) data types versus textual data types in databases?arrow_forwardWhat distinguishes a clustered index from a sparse index?arrow_forwardHow is a clustered index built, and what characteristics distinguish it from a sparse index?arrow_forward
- 8 External fragmentation can be completely prevented through: Paging Compaction Segmentation Best-fit allocationarrow_forwardHow are secondary indexes and clustering indices different from one another?arrow_forwardWhat are the key features that differentiate a clustering index from a secondary index?arrow_forward
- What challenges can arise with circular dependencies in data binding?arrow_forwardDescribe the concept of lock-free and wait-free data structures in multithreading. When and why would you choose to use such data structures?arrow_forwardWhen compared to a clustering index, what makes a secondary index unique?arrow_forward
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