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PostgreSQL 10 High Performance

PostgreSQL 10 High Performance

By : Enrico Pirozzi
2.5 (2)
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PostgreSQL 10 High Performance

PostgreSQL 10 High Performance

2.5 (2)
By: Enrico Pirozzi

Overview of this book

PostgreSQL database servers have a common set of problems that they encounter as their usage gets heavier and requirements get more demanding. Peek into the future of your PostgreSQL 10 database's problems today. Know the warning signs to look for and how to avoid the most common issues before they even happen. Surprisingly, most PostgreSQL database applications evolve in the same way—choose the right hardware, tune the operating system and server memory use, optimize queries against the database and CPUs with the right indexes, and monitor every layer, from hardware to queries, using tools from inside and outside PostgreSQL. Also, using monitoring insight, PostgreSQL database applications continuously rework the design and configuration. On reaching the limits of a single server, they break things up; connection pooling, caching, partitioning, replication, and parallel queries can all help handle increasing database workloads. By the end of this book, you will have all the knowledge you need to design, run, and manage your PostgreSQL solution while ensuring high performance and high availability
Table of Contents (23 chapters)
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Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Summary


As database servers have so many different types of workloads they might encounter, it's difficult to give any hard rules for optimal configuration just based on server hardware. Some applications will benefit from having really large amounts of dedicated database memory in the form of shared_buffers; others will suffer large checkpoint spike problems if you do that. PostgreSQL versions starting with 8.3 do provide you with tools to help monitor your system in this area though. If you combine that with some investigation of just how the server is using the memory you've allocated for it, and preferably add in some of the monitoring techniques covered in later chapters, you'll be much better informed.

A quick look inside the actual content of the database buffer cache will answer all sorts of questions about how the server is using memory, and be much more accurate for planning purposes than guessing.

PostgreSQL allocates one large shared memory block on server startup to cache reads...

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