Application Performance Optimization Summary. Contribute to sjtuhjh/appdocs development by creating an account on GitHub. The O'Reilly logo is a registered trademark of O'Reilly Media, Inc. Designing Data -Intensive Applications, the cover .. open-access PDF files. This Preview Edition of Designing Data-Intensive Applications, Chapters 1 and 2, is a work in progress. The final book is currently scheduled for release in July.
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Technology is a powerful force in our society. Data, software, and communication can be used for bad: to entrench unfair power structures, to undermine human. When looking for good references for improving my software architecture skills, I came to the book “Designing Data-Intensive Applications,”. Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Read online, or download in DRM-free EPUB or DRM-free PDF format.
What is the difference between "fault" and "failure"?
How do you describe load on a data intensive system? How do you talk about performance and scalability in a meaningful way? What does it mean to have a "maintainable" system?
Second chapter gives a brief overview of different data models and shows the suitability of them to different use cases, using modern challenges that companies such as Twitter faced. This chapter is a solid foundation for understanding the difference between the relational data model, document data model, graph data model, as well as the languages used for processing data stored using these models.
The third chapter goes into a lot of detail regarding the building blocks of different types of database systems: the data structures and algorithms used for the different systems shown in the previous chapter are described; you get to know hash indexes, SSTables Sorted String Tables , Log-Structured Merge trees LSM-trees , B-trees, and other data structures. Following this chapter, you are introduced to Column Databases, and the underlying principles and structures behind them.
Following the building blocks and foundations comes "Part II", and this is where things start to get really interesting because now the reader starts to learn about challenging topic of distributed systems: how to use the basic building blocks in a setting where anything can go wrong in the most unexpected ways.
Part II is the most complex of part the book: you learn about how to replicate your data, what happens when replication lags behind, how you provide a consistent picture to the end-user or the end-programmer, what algorithms are used for leader election in consensus systems, and how leaderless replication works.
One of the primary purpose of using a distributed system is to have an advantage over a single, central system, and that advantage is to provide better service, meaning a more resilient service with an acceptable level of responsiveness.
This means you need to distribute the load and your data, and there a lot of schemes for partitioning your data.
Chapter 6 of Part II provides a lot of details on partitioning, keys, indexes, secondary indexes and how to handle data queries when your data is partitioned using various methods. No data systems book can be complete without touching the topic of transactions, and this book is not an exception to the rule. You learn about the fuzziness surrounding the definition of ACID, isolation levels, and serializability.
Jay Kreps , creator of Apache Kafka and Project Voldemort This book should be required reading for software engineers. The explosion of data and its increased importance to the applications we build has created a new set of complex challenges.
Designing Data-Intensive Applications is a rare resource that bridges theory and practice to help developers make smart decisions as they design and implement data infrastructure and systems. Kevin Scott , Chief Technology Officer at Microsoft The essence of building reliable and scalable distributed data systems and efficiently using them to solve real world problems is in mastering the tradeoffs associated with the design choices. Designing Data Intensive applications explores them like none other and provides a unbiased view of how distributed systems have made these choices over time.
This is one of the best technical books I've read. It offers very helpful context, historical and current, to understanding the key issues in the text.
It is now available in print and ebook formats from your favorite bookstore. Previously he was a software engineer and entrepreneur at Internet companies including LinkedIn and Rapportive , where he worked on large-scale data infrastructure. In the process he learned a few things the hard way, and he hopes this book will save you from repeating the same mistakes.
Martin is a regular conference speaker, blogger, and open source contributor. He believes that profound technical ideas should be accessible to everyone, and that deeper understanding will help us develop better software. You can find him as martinkl on Twitter, and his blog is at martin.
Overheard on Twitter.