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PostgreSQL 10 High Performance

You're reading from   PostgreSQL 10 High Performance Expert techniques for query optimization, high availability, and efficient database maintenance

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Product type Paperback
Published in Apr 2018
Publisher Packt
ISBN-13 9781788474481
Length 508 pages
Edition 3rd Edition
Languages
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Author (1):
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Enrico Pirozzi Enrico Pirozzi
Author Profile Icon Enrico Pirozzi
Enrico Pirozzi
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Table of Contents (18) Chapters Close

Preface 1. PostgreSQL Versions FREE CHAPTER 2. Database Hardware 3. Database Hardware Benchmarking 4. Disk Setup 5. Memory for Database Caching 6. Server Configuration Tuning 7. Routine Maintenance 8. Database Benchmarking 9. Database Indexing 10. Query Optimization 11. Database Activity and Statistics 12. Monitoring and Trending 13. Pooling and Caching 14. Scaling with Replication 15. Partitioning Data 16. Avoiding Common Problems 17. Other Books You May Enjoy

Summary

Hot Standby allows us to run queries against the type of standby databases used in early
versions only for high availability failover. The WAL used for creating standby databases logs block changes, and can only be used to make a complete copy of a database cluster, not a subset. Using log-shipping replication will result in some archiving lag between the standby and the master, but this is resolved in synchronous replication. Replicating database statements instead is more flexible and allows features such as version upgrades, but some statements don't replicate easily and this approach has higher overhead than write-ahead log shipping. Slony, Londiste, and Bucardo are mature solutions for replications. pgpool-II can be used to do load balancing across multiple read-only slaves, as well as some forms of synchronous replication. There are many additional replication...

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